Fixed #2 Persist counters

Added initialisation sketch and reset state

Button.cpp

@@ -0,0 +1,48 @@
+#include "Button.h"
+
+
+void Button::init(uint8_t pin, int offState, bool usePullUp)
+{
+  this->pin = pin;
+  this->offState = offState;
+  this->lastState = offState;
+
+  if (usePullUp)
+    pinMode(pin, INPUT_PULLUP);
+  else
+    pinMode(pin, INPUT);
+}
+
+
+void Button::update(unsigned long referenceTime)
+{
+  unsigned long currentTime = getTime(referenceTime);
+  int currentState = digitalRead(pin);
+
+  if (lastChangedTime != 0)
+  {
+    if (currentState != lastState && (currentTime - lastChangedTime) > debounceMillis)
+    {
+      lastChanged = true;
+
+      if (currentState != offState)
+        lastPressedTime = currentTime;
+      else if (blocked)
+      {
+        blocked = false;
+        lastChanged = false;
+      }
+
+      lastChangedTime = currentTime;
+      lastState = currentState;
+      return;
+    }
+  }
+  else
+  {
+    lastChangedTime = currentTime;
+    lastState = currentState;
+  }
+
+  lastChanged = false;
+}

Button.h

@@ -0,0 +1,37 @@
+#ifndef Button_h
+#define Button_h
+
+#include "Arduino.h"
+
+
+class Button
+{
+  public:
+    void init(uint8_t pin, int offState = HIGH, bool usePullUp = true);
+    void update(unsigned long referenceTime = 0);
+    void block() { if (lastState != offState) blocked = true; }
+
+    bool changed() { return !blocked && lastChanged; }
+    bool pressed() { return !blocked && lastState != offState; }
+    unsigned long pressedMillis(unsigned long referenceTime = 0) { return getTime(referenceTime) - lastPressedTime; }
+
+    unsigned long getDebounceMillis() { return debounceMillis; }
+    void setDebounceMillis(unsigned long value) { debounceMillis = value; }
+
+  protected:
+    inline unsigned long getTime(unsigned long referenceTime) { return referenceTime == 0 ? millis() : referenceTime; };
+
+  private:
+    uint8_t pin = 1;
+    int offState = HIGH;
+    unsigned long debounceMillis = 50;
+
+    unsigned long lastChangedTime = 0;
+    unsigned long lastPressedTime = 0;
+    int lastState;
+    bool lastChanged;
+
+    bool blocked = false;
+};
+
+#endif

Globals.cpp

@@ -0,0 +1,168 @@
+#include "NerfStatTrakConfig.h"
+#include "Globals.h"
+#include "StateHandler.h"
+#include "LowPower.h"
+#include "EEPROM.h"
+
+
+SegmentDisplay* display;
+Button* buttonA;
+Button* buttonB;
+Button* buttonArmed;
+
+uint32_t shots = 0;
+uint32_t hits = 0;
+
+unsigned long currentTime;
+AbstractStateHandler* currentState;
+
+byte shotCounterOffset;
+byte hitCounterOffset;
+
+
+#define counterTreshold (uint32_t)10000
+uint32_t lastShotCounterIteration;
+uint32_t lastHitCounterIteration;
+
+void setCurrentState(AbstractStateHandler* value)
+{
+  buttonA->block();
+  buttonB->block();
+
+  currentState = value;
+  currentState->setup();
+}
+
+
+void update()
+{
+  currentTime = millis();
+
+  buttonA->update(currentTime);
+  buttonB->update(currentTime);
+  buttonArmed->update(currentTime);
+
+  // Count the shot no matter which state we're in
+  if (buttonArmed->changed() && !buttonArmed->pressed())
+    addShot();
+}
+
+
+void wakeUp()
+{
+}
+
+
+void sleep()
+{
+  display->clear();
+
+  // Uses RocketScream's Low-Power library
+  // https://github.com/rocketscream/Low-Power
+  uint32_t interrupt = digitalPinToInterrupt(NerfButtonWakeUp);
+
+  attachInterrupt(interrupt, wakeUp, NerfButtonWakeUpState);
+  LowPower.powerDown(SLEEP_FOREVER, ADC_OFF, BOD_OFF);
+  detachInterrupt(interrupt);
+
+
+  currentTime = millis();
+
+  // The button triggers the wake-up, so block the first release after
+  if (NerfButtonWakeUp == NerfButtonA)
+  {
+    buttonA->update(currentTime);
+    buttonA->block();
+  }
+
+  if (NerfButtonWakeUp == NerfButtonB)
+  {
+    buttonB->update(currentTime);
+    buttonB->block();
+  }
+}
+
+
+#define counterLocation(offset) 2 + (offset * sizeof(uint32_t))
+
+void readCounters()
+{
+  shotCounterOffset = EEPROM.read(0);
+  hitCounterOffset = EEPROM.read(1);
+
+  EEPROM.get(counterLocation(shotCounterOffset), shots);
+  EEPROM.get(counterLocation(hitCounterOffset), hits);
+
+  lastShotCounterIteration = shots / counterTreshold;
+  lastHitCounterIteration = hits / counterTreshold;
+}
+
+
+void setShots(uint32_t value)
+{
+  shots = value;
+
+  uint32_t newShotCounterIteration = shots / counterTreshold;
+  if (newShotCounterIteration != lastShotCounterIteration || value == 0)
+  {
+    shotCounterOffset++;
+    if (counterLocation(shotCounterOffset) > EEPROM.length() - sizeof(uint32_t))
+    {
+      shotCounterOffset = 0;
+      if (shotCounterOffset == hitCounterOffset)
+        shotCounterOffset++;
+    }
+
+    EEPROM.write(0, shotCounterOffset);
+    lastShotCounterIteration = newShotCounterIteration;
+  }
+
+  EEPROM.write(counterLocation(shotCounterOffset), shots);
+}
+
+
+void addShot()
+{
+  setShots(shots + 1);
+}
+
+
+void setHits(uint32_t value)
+{
+  hits = value;
+
+  uint32_t newHitCounterIteration = hits / counterTreshold;
+  if (newHitCounterIteration != lastHitCounterIteration || value == 0)
+  {
+    hitCounterOffset++;
+    if (counterLocation(hitCounterOffset) > EEPROM.length() - sizeof(uint32_t))
+    {
+      hitCounterOffset = 0;
+      if (hitCounterOffset == shotCounterOffset)
+        hitCounterOffset++;
+    }
+
+    EEPROM.write(1, hitCounterOffset);
+    lastHitCounterIteration = newHitCounterIteration;
+  }
+
+  EEPROM.write(counterLocation(hitCounterOffset), hits);
+}
+
+
+void addHit()
+{
+  setHits(hits + 1);
+}
+
+
+void resetShots()
+{
+  setShots(0);
+}
+
+
+void resetHits()
+{
+  setHits(0);
+}

Globals.h

@@ -0,0 +1,30 @@
+#ifndef Globals_h
+#define Globals_h
+
+#include "SegmentDisplay.h"
+#include "SegmentDisplayConfig.h"
+#include "Button.h"
+#include "StateHandler.h"
+
+extern SegmentDisplay* display;
+extern Button* buttonA;
+extern Button* buttonB;
+extern Button* buttonArmed;
+
+extern uint32_t shots;
+extern uint32_t hits;
+
+extern unsigned long currentTime;
+extern AbstractStateHandler* currentState;
+
+void setCurrentState(AbstractStateHandler* value);
+void update();
+void sleep();
+
+void readCounters();
+void addShot();
+void addHit();
+void resetShots();
+void resetHits();
+
+#endif

LowPower.h

@@ -0,0 +1,169 @@
+#ifndef LowPower_h
+#define LowPower_h
+
+#include "Arduino.h"
+
+enum period_t
+{
+	SLEEP_15MS,
+	SLEEP_30MS,	
+	SLEEP_60MS,
+	SLEEP_120MS,
+	SLEEP_250MS,
+	SLEEP_500MS,
+	SLEEP_1S,
+	SLEEP_2S,
+	SLEEP_4S,
+	SLEEP_8S,
+	SLEEP_FOREVER
+};
+
+enum bod_t
+{
+	BOD_OFF,
+	BOD_ON
+};
+
+enum adc_t
+{
+	ADC_OFF,
+	ADC_ON
+};
+
+enum timer5_t
+{
+	TIMER5_OFF,
+	TIMER5_ON
+};
+
+enum timer4_t
+{
+	TIMER4_OFF,
+	TIMER4_ON
+};
+
+enum timer3_t
+{
+	TIMER3_OFF,
+	TIMER3_ON
+};
+
+enum timer2_t
+{
+	TIMER2_OFF,
+	TIMER2_ON
+};
+
+enum timer1_t
+{
+	TIMER1_OFF,
+	TIMER1_ON
+};
+
+enum timer0_t
+{
+	TIMER0_OFF,
+	TIMER0_ON
+};
+
+enum spi_t
+{
+	SPI_OFF,
+	SPI_ON
+};
+
+enum usart0_t
+{
+	USART0_OFF,
+	USART0_ON
+};
+
+enum usart1_t
+{
+	USART1_OFF,
+	USART1_ON
+};
+
+enum usart2_t
+{
+	USART2_OFF,
+	USART2_ON
+};
+
+enum usart3_t
+{
+	USART3_OFF,
+	USART3_ON
+};
+
+enum twi_t
+{
+	TWI_OFF,
+	TWI_ON
+};
+
+enum usb_t
+{
+	USB_OFF,
+	USB_ON
+};
+
+enum idle_t
+{
+	IDLE_0,
+	IDLE_1,
+	IDLE_2
+};
+
+class LowPowerClass
+{
+	public:
+		#if defined (__AVR__)
+		
+			#if defined (__AVR_ATmega328P__) || defined (__AVR_ATmega168__) 
+				void	idle(period_t period, adc_t adc, timer2_t timer2, 
+						     timer1_t timer1, timer0_t timer0, spi_t spi,
+					         usart0_t usart0, twi_t twi);
+			#elif defined __AVR_ATmega2560__
+				void	idle(period_t period, adc_t adc, timer5_t timer5, 
+							 timer4_t timer4, timer3_t timer3, timer2_t timer2,
+							 timer1_t timer1, timer0_t timer0, spi_t spi,
+							 usart3_t usart3, usart2_t usart2, usart1_t usart1, 
+							 usart0_t usart0, twi_t twi);
+			#elif defined __AVR_ATmega256RFR2__
+				void	idle(period_t period, adc_t adc, timer5_t timer5, 
+									 timer4_t timer4, timer3_t timer3, timer2_t timer2,
+				   				 timer1_t timer1, timer0_t timer0, spi_t spi,
+						       usart1_t usart1, 
+									 usart0_t usart0, twi_t twi);
+			#elif defined __AVR_ATmega32U4__	
+				void	idle(period_t period, adc_t adc, timer4_t timer4, 
+				             timer3_t timer3, timer1_t timer1, timer0_t timer0, 
+				             spi_t spi, usart1_t usart1, twi_t twi, usb_t usb);		
+			#else
+				#error "Please ensure chosen MCU is either 168, 328P, 32U4, 2560 or 256RFR2."
+			#endif
+			void	adcNoiseReduction(period_t period, adc_t adc, timer2_t timer2) __attribute__((optimize("-O1")));
+			void	powerDown(period_t period, adc_t adc, bod_t bod) __attribute__((optimize("-O1")));
+			void	powerSave(period_t period, adc_t adc, bod_t bod, timer2_t timer2) __attribute__((optimize("-O1")));
+			void	powerStandby(period_t period, adc_t adc, bod_t bod) __attribute__((optimize("-O1")));
+			void	powerExtStandby(period_t period, adc_t adc, bod_t bod, timer2_t timer2) __attribute__((optimize("-O1")));
+		
+		#elif defined (__arm__)
+			
+			#if defined (__SAMD21G18A__)
+				void	idle(idle_t idleMode);
+				void	standby();
+			#else
+				#error "Please ensure chosen MCU is ATSAMD21G18A."
+			#endif
+		
+		#else
+		
+			#error "Processor architecture is not supported."
+		
+		#endif
+};
+
+extern LowPowerClass LowPower;
+#endif

NerfStatTrak.ino

@@ -0,0 +1,46 @@
+#include "NerfStatTrakConfig.h"
+#include "Globals.h"
+
+#include "StateHandler.h"
+#include "StateDefault.h"
+
+
+void setup()
+{
+  // Configure display
+  display = new SegmentDisplay();
+
+  #ifdef SDUseSPI
+  display->setClockSpeed(NerfClockSpeed);
+  #else
+  display->setClockPin(NerfClockPin);
+  display->setDataPin(NerfDataPin);
+  #endif
+
+  display->setLatchPin(NerfLatchPin);
+  display->setDigits(NerfDigits);
+  display->begin();
+  display->clear();
+
+
+  // Configure buttons
+  buttonA = new Button();
+  buttonA->init(NerfButtonA);
+
+  buttonB = new Button();
+  buttonB->init(NerfButtonB);
+
+  buttonArmed = new Button();
+  buttonArmed->init(NerfButtonArmed, LOW);
+
+
+  readCounters();
+  setCurrentState(new DefaultState());
+}
+
+
+void loop()
+{
+  update();
+  currentState->loop();
+}

NerfStatTrakConfig.h

@@ -0,0 +1,56 @@
+#ifndef NerfStatTrakConfig_h
+#define NerfStatTrakConfig_h
+
+
+/**
+ * Display configuration
+**/
+#define NerfDigits 6
+
+
+/**
+ * Display pin configuration
+ *
+ * Clock and data are used only when not using SPI,
+ * clock speed is only for SPI
+**/
+#define NerfLatchPin 10
+#define NerfDataPin 11
+#define NerfClockPin 12
+#define NerfClockSpeed 1600000UL
+
+
+/**
+ * Button configuration
+**/
+#define NerfButtonLongPressThreshold 1000
+
+
+/**
+ * Button pin configuration
+**/
+#define NerfButtonA 3
+#define NerfButtonB 2
+#define NerfButtonArmed 4
+
+// Must be usable for interrupts
+#define NerfButtonWakeUp 2
+#define NerfButtonWakeUpState LOW
+
+
+
+/**
+ * Default state configuration
+**/
+#define NerfDefaultIntroTime 1000
+#define NerfDefaultSleepTime 10000
+
+
+/**
+ * Reset state configuration
+**/
+#define NerfResetIntroTime 1000
+#define NerfResetOutroTime 2000
+
+
+#endif

NerfStatTrek.ino

@@ -1,57 +0,0 @@
-#include "lib/SegmentDisplay.h"
-
-const int PinBottom = 2;
-const int PinTop = 5;
-
-const int PinDigit3 = 3;
-const int PinDigit2 = 4;
-
-
-void setup()
-{
-  pinMode(PinTop, OUTPUT);
-  pinMode(PinBottom, OUTPUT);
-  pinMode(PinDigit3, OUTPUT);
-  pinMode(PinDigit2, OUTPUT);
-
-  digitalWrite(PinTop, LOW);
-  digitalWrite(PinBottom, LOW);
-}
-
-int lastTime = 0;
-bool top = true;
-
-void loop()
-{
-  int currentTime = millis();
-  if (currentTime - lastTime > 1000)
-  {
-    top = !top;
-    lastTime = currentTime;
-  }
-
-  // Digit 3 (right) - switch between top and bottom
-  digitalWrite(PinDigit3, HIGH);
-
-  if (top)
-  {
-    digitalWrite(PinTop, HIGH);
-    delay(1);
-    digitalWrite(PinTop, LOW);
-  }
-  else
-  {
-    digitalWrite(PinBottom, HIGH);
-    delay(1);
-    digitalWrite(PinBottom, LOW);
-  }
-  digitalWrite(PinDigit3, LOW);
-
-
-  // Digit 2 (middle) - always bottom
-  digitalWrite(PinDigit2, HIGH);
-  digitalWrite(PinBottom, HIGH);
-  delay(1);
-  digitalWrite(PinBottom, LOW);
-  digitalWrite(PinDigit2, LOW);
-}

SegmentDisplay.cpp

@@ -0,0 +1,192 @@
+#include "SegmentDisplayConfig.h"
+#include "SegmentDisplay.h"
+
+
+void SegmentDisplay::begin()
+{
+  pinMode(latchPin, OUTPUT);
+
+  #if !defined(SDUseSPI)
+  pinMode(clockPin, OUTPUT);
+  pinMode(dataPin, OUTPUT);
+
+  digitalWrite(clockPin, LOW);
+  digitalWrite(dataPin, LOW);
+  #endif
+
+  writeDisplay(0, 0);
+
+  digitalWrite(latchPin, HIGH);
+  digitalWrite(latchPin, LOW);
+  digitalWrite(latchPin, HIGH);
+
+  #if defined(SDUseSPI)
+  SPI.begin();
+  #endif
+
+  #if defined(SDSerialDebug)
+  Serial.begin(9600);
+  Serial.print("SegmentDisplay::begin\n");
+  #endif
+}
+
+
+void SegmentDisplay::end()
+{
+  #if defined(SDUseSPI)
+  SPI.end();
+  #endif
+}
+
+
+void SegmentDisplay::clear()
+{
+  writeDisplay(0, 0);
+}
+
+
+void SegmentDisplay::writeNumber(uint32_t value)
+{
+  #if defined(SDSerialDebug)
+  String textValue = String(value);
+  Serial.print("SegmentDisplay::writeNumber: " + textValue + "\n");
+  #endif
+
+  byte digitMask = 1;
+
+  for (byte digit = digits; digit > 0; digit--)
+  {
+    writeDigit((byte)(value % 10), digitMask);
+
+    value /= 10;
+    digitMask <<= 1;
+  }
+}
+
+
+void SegmentDisplay::writeTextLeft(char const* value)
+{
+  #if defined(SDSerialDebug)
+  Serial.print("SegmentDisplay::writeTextLeft: " + value + "\n");
+  #endif
+
+  byte digitMask = 1 << (digits - 1);
+  byte charIndex = 0;
+
+  while (charIndex < digits && value[charIndex] != '\0')
+  {
+    writeChar(value[charIndex], digitMask);
+
+    digitMask >>= 1;
+    charIndex++;
+  }
+
+  while (charIndex < digits)
+  {
+    writeDisplay(0, digitMask);
+    digitMask >>= 1;
+    charIndex++;
+  }
+}
+
+
+void SegmentDisplay::writeRaw(char const* value)
+{
+  #if defined(SDSerialDebug)
+  Serial.print("SegmentDisplay::writeRaw: " + value + "\n");
+  #endif
+
+  byte digitMask = 1 << (digits - 1);
+  byte charIndex = 0;
+
+  while (charIndex < digits)
+  {
+    writeDisplay(value[charIndex], digitMask);
+
+    digitMask >>= 1;
+    charIndex++;
+  }
+
+  while (charIndex < digits)
+  {
+    writeDisplay(0, digitMask);
+    digitMask >>= 1;
+    charIndex++;
+  }
+}
+
+
+inline void SegmentDisplay::writeDigit(byte value, byte digitMask)
+{
+  writeDisplay(pgm_read_byte_near(SDNumberSegments + value), digitMask);
+}
+
+
+inline void SegmentDisplay::writeChar(char value, byte digitMask)
+{
+  // Lowercase
+  if (value >= ASCIILowercaseA && value <= ASCIILowercaseZ)
+    writeDisplay(pgm_read_byte_near(SDCharacterSegments + (value - ASCIILowercaseA)), digitMask);
+
+  // Uppercase
+  else if  (value >= ASCIIUppercaseA && value <= ASCIIUppercaseZ)
+    writeDisplay(pgm_read_byte_near(SDCharacterSegments + (value - ASCIIUppercaseA)), digitMask);
+
+  // Numbers
+  else if (value >= ASCIIZero && value <= ASCIINine)
+    writeDisplay(pgm_read_byte_near(SDNumberSegments + (value - ASCIIZero)), digitMask);
+
+  // Space / unknown
+  else
+    writeDisplay(0, digitMask);
+}
+
+
+void SegmentDisplay::writeDisplay(byte segmentMask, byte digitMask)
+{
+  // If no segments should be lit, clear the digit mask as well to prevent
+  // power leaking through (it's probably an issue in my circuit or with the
+  // specific displays I used, but it still makes sense to close both sides).
+  //
+  // Still push out the zeros though, if we don't the display will vary
+  // in brightness depending on what's on it.
+  if (segmentMask == 0)
+    digitMask = 0;
+
+  #if defined(SDSerialDebug)
+  String segmentValue = String(segmentMask);
+  String digitValue = String(digitMask);
+
+  Serial.print("SegmentDisplay::writeDisplay: " + segmentValue + " " + digitValue + "\n");
+  #endif
+
+  #if defined(SDUseSPI)
+    SPI.beginTransaction(SPISettings(clockSpeed, MSBFIRST, SPI_MODE0));
+    #if defined(SDPushSegmentsFirst)
+    SPI.transfer(segmentMask);
+    SPI.transfer(digitMask);
+    #else
+    SPI.transfer(digitMask);
+    SPI.transfer(segmentMask);
+    #endif
+    SPI.endTransaction();
+  #else
+    #if defined(SDPushSegmentsFirst)
+    shiftOut(dataPin, clockPin, MSBFIRST, segmentMask);
+    shiftOut(dataPin, clockPin, MSBFIRST, digitMask);
+    #else
+    shiftOut(dataPin, clockPin, MSBFIRST, digitMask);
+    shiftOut(dataPin, clockPin, MSBFIRST, segmentMask);
+    #endif
+
+    digitalWrite(latchPin, HIGH);
+    digitalWrite(latchPin, LOW);
+  #endif
+
+  #if defined(SPHandleLargeDelays)
+  if (digitDelayMicroseconds > 15000)
+    delay(digitDelayMicroseconds / 1000);
+  else
+  #endif
+    delayMicroseconds(digitDelayMicroseconds);
+}

SegmentDisplay.h

@@ -0,0 +1,78 @@
+#ifndef SegmentDisplay_h
+#define SegmentDisplay_h
+
+#include "SegmentDisplayConfig.h"
+#include "Arduino.h"
+
+#if defined(SDUseSPI)
+#include "SPI.h"
+#endif
+
+#include "SegmentDisplayChars.h"
+
+/**
+ * Drives up to 8 digits using two 8-bit shift registers.
+ *
+ * Least significant bit ends up at output pin 0 of the shift register,
+ * which correlates to Segment A (as defined in SegmentDisplayChars.h).
+ * The last digit is also assumed to be at output pin 0 of the chained
+ * shift register.
+ *
+ * The order in which the shift registers are chained is determined by
+ * (un)defining SDPushSegmentsFirst.
+**/
+
+class SegmentDisplay
+{
+  public:
+    void begin();
+    void end();
+
+    void clear();
+    void writeNumber(uint32_t value);
+    void writeTextLeft(char const* value);
+    void writeRaw(char const* value);
+
+    byte getDigits() { return digits; }
+    void setDigits(byte value) { digits = value; }
+
+    uint32_t getLatchPin() { return latchPin; }
+    void setLatchPin(uint32_t value) { latchPin = value; }
+
+    uint32_t getDigitDelayMicroseconds() { return digitDelayMicroseconds; }
+    void setDigitDelayMicroseconds(uint32_t value) { digitDelayMicroseconds = value; }
+
+    #if defined(SDUseSPI)
+    uint32_t getClockSpeed() { return clockSpeed; }
+    void setClockSpeed(uint32_t value) { clockSpeed = value; }
+    #endif
+
+    #if !defined(SDUseSPI)
+    uint32_t getClockPin() { return clockPin; }
+    void setClockPin(uint32_t value) { clockPin = value; }
+
+    uint32_t getDataPin() { return dataPin; }
+    void setDataPin(uint32_t value) { dataPin = value; }
+    #endif
+
+  protected:
+    void writeDigit(byte value, byte digitMask);
+    void writeChar(char value, byte digitMask);
+    void writeDisplay(byte characterMask, byte digitMask);
+
+  private:
+    byte digits = 6;
+    uint32_t digitDelayMicroseconds = 1000;
+    uint32_t latchPin = SS;
+
+    #if defined(SDUseSPI)
+    uint32_t clockSpeed = 20000000;
+    #endif
+
+    #if !defined(SDUseSPI)
+    uint32_t clockPin = SCK;
+    uint32_t dataPin = MOSI;
+    #endif
+};
+
+#endif

SegmentDisplayChars.h

@@ -0,0 +1,326 @@
+#ifndef SegmentDisplayChars_h
+#define SegmentDisplayChars_h
+
+#include "avr/pgmspace.h"
+
+
+#define SegmentA 1  // Top
+#define SegmentB 2  // Top right
+#define SegmentC 4  // Bottom right
+#define SegmentD 8  // Bottom
+#define SegmentE 16 // Bottom left
+#define SegmentF 32 // Top left
+#define SegmentG 64 // Middle
+#define SegmentDP (char)128 // Dot point
+
+
+#define ASCIIZero 48
+#define ASCIINine 57
+#define ASCIIUppercaseA 65
+#define ASCIIUppercaseZ 90
+#define ASCIILowercaseA 97
+#define ASCIILowercaseZ 122
+
+
+/**
+ *  _
+ * | |
+ * |_|
+ *
+**/
+#define Char0 SegmentA | SegmentB | SegmentC | SegmentD | SegmentE | SegmentF
+
+/**
+ *
+ *   |
+ *   |
+ *
+**/
+#define Char1 SegmentB | SegmentC
+
+/**
+ *  _
+ *  _|
+ * |_
+ *
+**/
+#define Char2 SegmentA | SegmentB | SegmentD | SegmentE | SegmentG
+
+/**
+ *  _
+ *  _|
+ *  _|
+ *
+**/
+#define Char3 SegmentA | SegmentB | SegmentC | SegmentD | SegmentG
+
+/**
+ *
+ * |_|
+ *   |
+ *
+**/
+#define Char4 SegmentB | SegmentC | SegmentF | SegmentG
+
+/**
+ *  _
+ * |_
+ *  _|
+ *
+**/
+#define Char5 SegmentA | SegmentC | SegmentD | SegmentF | SegmentG
+
+/**
+ *  _
+ * |_
+ * |_|
+ *
+**/
+#define Char6 SegmentA | SegmentC | SegmentD | SegmentE | SegmentF | SegmentG
+
+/**
+ *  _
+ *   |
+ *   |
+ *
+**/
+#define Char7 SegmentA | SegmentB | SegmentC
+
+/**
+ *  _
+ * |_|
+ * |_|
+ *
+**/
+#define Char8 SegmentA | SegmentB | SegmentC | SegmentD | SegmentE | SegmentF | SegmentG
+
+/**
+ *  _
+ * |_|
+ *  _|
+ *
+**/
+#define Char9 SegmentA | SegmentB | SegmentC | SegmentD | SegmentF | SegmentG
+
+
+/**
+ *  _
+ * |_|
+ * | |
+ *
+**/
+#define CharA SegmentA | SegmentB | SegmentC | SegmentE | SegmentF | SegmentG
+
+/**
+ *
+ * |_
+ * |_|
+ *
+**/
+#define CharB SegmentC | SegmentD | SegmentE | SegmentF | SegmentG
+
+/**
+ *  _
+ * |
+ * |_
+ *
+**/
+#define CharC SegmentA | SegmentD | SegmentE | SegmentF
+
+/**
+ *
+ *  _|
+ * |_|
+ *
+**/
+#define CharD SegmentB | SegmentC | SegmentD | SegmentE | SegmentG
+
+/**
+ *  _
+ * |_
+ * |_
+ *
+**/
+#define CharE SegmentA | SegmentD | SegmentE | SegmentF | SegmentG
+
+/**
+ *  _
+ * |_
+ * |
+ *
+**/
+#define CharF SegmentA | SegmentE | SegmentF | SegmentG
+
+/**
+ *  _
+ * |_|
+ *  _|
+ *
+**/
+#define CharG SegmentA | SegmentB | SegmentC | SegmentD | SegmentF | SegmentG
+
+/**
+ *
+ * |_|
+ * | |
+ *
+**/
+#define CharH SegmentB | SegmentC | SegmentE | SegmentF | SegmentG
+
+/**
+ *
+ * |
+ * |
+ *
+**/
+#define CharI SegmentE | SegmentF
+
+/**
+ *
+ *   |
+ * |_|
+ *
+**/
+#define CharJ SegmentB | SegmentC | SegmentD | SegmentE
+
+/**
+ *
+ * |_
+ * |
+ *
+**/
+#define CharK SegmentE | SegmentF | SegmentG
+
+/**
+ *
+ * |
+ * |_
+ *
+**/
+#define CharL SegmentD | SegmentE | SegmentF
+
+/**
+ *  _
+ *
+ * | |
+ *
+**/
+#define CharM SegmentA | SegmentC | SegmentE
+
+/**
+ *
+ *  _
+ * | |
+ *
+**/
+#define CharN SegmentC | SegmentE | SegmentG
+
+/**
+ *
+ *  _
+ * |_|
+ *
+**/
+#define CharO SegmentC | SegmentD | SegmentE | SegmentG
+
+/**
+ *  _
+ * |_|
+ * |
+ *
+**/
+#define CharP SegmentA | SegmentB | SegmentE | SegmentF | SegmentG
+
+/**
+ *  _
+ * |_|
+ *   |
+ *
+**/
+#define CharQ SegmentA | SegmentB | SegmentC | SegmentF | SegmentG
+
+/**
+ *
+ *  _
+ * |
+ *
+**/
+#define CharR SegmentE | SegmentG
+
+/**
+ *  _
+ * |_
+ *  _|
+ *
+**/
+#define CharS SegmentA | SegmentC | SegmentD | SegmentF | SegmentG
+
+/**
+ *
+ * |_
+ * |_
+ *
+**/
+#define CharT SegmentD | SegmentE | SegmentF | SegmentG
+
+/**
+ *
+ * | |
+ * |_|
+ *
+**/
+#define CharU SegmentB | SegmentC | SegmentD | SegmentE | SegmentF
+
+/**
+ *
+ *
+ * |_|
+ *
+**/
+#define CharV SegmentC | SegmentD | SegmentE
+
+/**
+ *
+ * | |
+ *  _
+ *
+**/
+#define CharW SegmentB | SegmentD | SegmentF
+
+/**
+ *
+ *  _|
+ *   |
+ *
+**/
+#define CharX SegmentB | SegmentC | SegmentG
+
+/**
+ *
+ * |_|
+ *  _|
+ *
+**/
+#define CharY SegmentB | SegmentC | SegmentD | SegmentF | SegmentG
+
+/**
+ *  _
+ *  _|
+ * |_
+ *
+**/
+#define CharZ SegmentA | SegmentB | SegmentD | SegmentE | SegmentG
+
+const byte SDNumberSegments[10] PROGMEM =
+{
+  Char0, Char1, Char2, Char3, Char4, Char5, Char6, Char7, Char8, Char9
+};
+
+
+const byte SDCharacterSegments[26] PROGMEM =
+{
+  CharA, CharB, CharC, CharD, CharE, CharF, CharG, CharH, CharI, CharJ, CharK, CharL, CharM,
+  CharN, CharO, CharP, CharQ, CharR, CharS, CharT, CharU, CharV, CharW, CharX, CharY, CharZ
+};
+
+#endif

SegmentDisplayConfig.h

@@ -0,0 +1,50 @@
+#ifndef SegmentDisplayConfig_h
+#define SegmentDisplayConfig_h
+
+/**
+ * Enable SPI support
+ *
+ * If not defined, shiftOut will be used. Use setClockPin and
+ * setDataPin instead to change the defaults.
+ *
+ * When using SPI, use setClockSpeed to match your target.
+**/
+//#define SDUseSPI
+
+
+/**
+ * Shift register chaining order
+ *
+ * If defined, the segment mask is pushed out first followed
+ * by the digit mask. In other words, connect D1, D2, etc to
+ * the first shift register and A, B, etc to the second.
+ *
+ * If not defined, the order is reversed.
+**/
+#define SDPushSegmentsFirst
+
+
+/**
+ * Support large digit delays (> 15000 microseconds)
+ *
+ * If not defined, delayMicroseconds() will always be used,
+ * which is currently only accurate up to 16383, but it saves
+ * the cost of checking the value.
+ *
+ * If you want to delay the digits further, most likely
+ * for multiplexing demonstration purposes only, enable this
+ * to automatically fall back to delay().
+**/
+#define SPHandleLargeDelays
+
+
+/**
+ * Debug output
+ *
+ * If defined, outputs a trace of every call using Serial.print.
+ * The performance cost is of course massive, you probably
+ * only want to enable this while debugging the library.
+**/
+//#define SDSerialDebug
+
+#endif

StateDefault.cpp

@@ -0,0 +1,107 @@
+#include "StateDefault.h"
+#include "NerfStatTrakConfig.h"
+#include "Globals.h"
+#include "StateLoseTheGame.h"
+#include "StateUserUnknown.h"
+#include "StateReset.h"
+
+
+bool DefaultState::ShowHits = true;
+
+
+void DefaultState::setup()
+{
+  introStart = currentTime;
+  lastAction = currentTime;
+}
+
+
+void DefaultState::loop()
+{
+  if (buttonA->pressed() && buttonB->pressed())
+  {
+    // A + B
+    setCurrentState(new UserUnknownState());
+    return;
+  }
+
+  // A short (triggered on release)
+  if (buttonA->changed() && !buttonA->pressed() && buttonA->pressedMillis(currentTime) <= NerfButtonLongPressThreshold)
+  {
+    addHit();
+
+    if (!DefaultState::ShowHits)
+      setShowHits(true);
+
+    lastAction = currentTime;
+  }
+
+  // A long
+  if (buttonA->pressed() && buttonA->pressedMillis(currentTime) > NerfButtonLongPressThreshold)
+  {
+    setCurrentState(new ResetState());
+  }
+
+  // B short (triggered on release)
+  if (buttonB->changed() && !buttonB->pressed() && buttonB->pressedMillis(currentTime) <= NerfButtonLongPressThreshold)
+  {
+    setShowHits(!DefaultState::ShowHits);
+    lastAction = currentTime;
+  }
+
+  // B long
+  if (buttonB->pressed() && buttonB->pressedMillis(currentTime) > NerfButtonLongPressThreshold)
+  {
+    setCurrentState(new LoseTheGameState());
+    return;
+  }
+
+  // Shot
+  if (buttonArmed->changed() && !buttonArmed->pressed())
+  {
+    // The shot has already been counted in Globals.cpp
+    lastAction = currentTime;
+  }
+
+
+  if (showIntro)
+  {
+    if (currentTime - introStart >= NerfDefaultIntroTime)
+      showIntro = false;
+
+    if (DefaultState::ShowHits)
+    {
+      // Prevents warning: deprecated conversion from string constant to 'char*'
+      char text[] = "Hits";
+      display->writeTextLeft(text);
+    }
+    else
+    {
+      char text[] = "Shots";
+      display->writeTextLeft(text);
+    }
+  }
+  else
+  {
+    if (currentTime - lastAction >= NerfDefaultSleepTime)
+    {
+      sleep();
+
+      lastAction = currentTime;
+    }
+
+    if (DefaultState::ShowHits)
+      display->writeNumber(hits);
+    else
+      display->writeNumber(shots);
+  }
+}
+
+
+void DefaultState::setShowHits(bool value)
+{
+  showIntro = true;
+  introStart = currentTime;
+
+  DefaultState::ShowHits = value;
+}

StateDefault.h

@@ -0,0 +1,35 @@
+#ifndef StateDefault_h
+#define StateDefault_h
+
+#include "StateHandler.h"
+
+
+/**
+ * Default state
+ *
+ * Start by showing the current counter mode (hits or shots),
+ * then display the value.
+ *
+ * A short:   Add hit
+ * A long:    Go to reset state
+ * B short:   Toggle between hits and shots and restart state
+ * A + B:     Display "Error user unknwn"
+ * B long:    Display "You lost the game" animation (losethegame.com - you're welcome!)
+**/
+class DefaultState : public AbstractStateHandler
+{
+  private:
+    bool showIntro = true;
+    unsigned long introStart;
+    unsigned long lastAction;
+
+    void setShowHits(bool value);
+
+  public:
+    static bool ShowHits;
+
+    void setup();
+    void loop();
+};
+
+#endif

StateHandler.h

@@ -0,0 +1,11 @@
+#ifndef StateHandler_h
+#define StateHandler_h
+
+class AbstractStateHandler
+{
+  public:
+    virtual void setup() = 0;
+    virtual void loop() = 0;
+};
+
+#endif

StateLoseTheGame.cpp

@@ -0,0 +1,87 @@
+#include "StateLoseTheGame.h"
+#include "Globals.h"
+#include "StateDefault.h"
+
+
+#include "SegmentDisplayChars.h"
+
+#define CharPipeLeft SegmentE | SegmentF
+#define CharPipeRight SegmentB | SegmentC
+
+
+struct Frame
+{
+  uint32_t time;
+  char frame[6];
+};
+
+
+Frame const animation[] = {
+  // Snake towards the middle
+  { 100, { SegmentF, 0, 0, 0, 0, SegmentB } },
+  { 100, { SegmentF | SegmentE, 0, 0, 0, 0, SegmentB | SegmentC } },
+  { 100, { SegmentE | SegmentD, 0, 0, 0, 0, SegmentC | SegmentD } },
+  { 100, { SegmentD | SegmentC, 0, 0, 0, 0, SegmentD | SegmentE } },
+  { 100, { SegmentC | SegmentB, 0, 0, 0, 0, SegmentE | SegmentF } },
+
+  { 100, { SegmentB, SegmentF, 0, 0, SegmentB, SegmentF } },
+  { 100, { 0, SegmentF | SegmentE, 0, 0, SegmentB | SegmentC, 0 } },
+  { 100, { 0, SegmentE | SegmentD, 0, 0, SegmentC | SegmentD, 0 } },
+  { 100, { 0, SegmentD | SegmentC, 0, 0, SegmentD | SegmentE, 0 } },
+  { 100, { 0, SegmentC | SegmentB, 0, 0, SegmentE | SegmentF, 0 } },
+
+  { 100, { 0, SegmentB, SegmentF, SegmentB, SegmentF, 0 } },
+  { 100, { 0, 0, SegmentF | SegmentE, SegmentB | SegmentC, 0, 0 } },
+  { 100, { 0, 0, SegmentE | SegmentD, SegmentC | SegmentD, 0, 0 } },
+  { 100, { 0, 0, SegmentD | SegmentC, SegmentD | SegmentE, 0, 0 } },
+  { 500, { 0, 0, SegmentC | SegmentB, SegmentE | SegmentF, 0, 0 } },
+
+  // Slide open to reveal 'you'
+  { 100, { 0, 0, CharPipeLeft | CharO, CharU | CharPipeRight, 0, 0 } },
+  { 100, { 0, CharPipeRight, CharO, CharU, CharPipeLeft, 0 } },
+  { 100, { 0, CharPipeLeft | CharY, CharO, CharU, CharPipeRight, 0 } },
+  { 100, { CharPipeRight, CharY, CharO, CharU, 0, CharPipeLeft } },
+  { 100, { CharPipeLeft, CharY, CharO, CharU, 0, CharPipeRight } },
+  { 500, { 0, CharY, CharO, CharU, 0, 0 } },
+
+  // The rest of the text
+  { 750, { 0, CharL, CharO, CharS, CharT, 0 } },
+  { 750, { 0, 0, CharT, CharH, CharE, 0 } },
+  { 500, { SegmentDP, CharG, CharA | SegmentDP, CharM, CharE | SegmentDP, 0 } },
+  { 500, { 0, CharG | SegmentDP, CharA, CharM | SegmentDP, CharE, SegmentDP } },
+  { 500, { SegmentDP, CharG, CharA | SegmentDP, CharM, CharE | SegmentDP, 0 } },
+  { 500, { 0, CharG | SegmentDP, CharA, CharM | SegmentDP, CharE, SegmentDP } },
+  { 500, { SegmentDP, CharG, CharA | SegmentDP, CharM, CharE | SegmentDP, 0 } },
+  { 500, { 0, CharG | SegmentDP, CharA, CharM | SegmentDP, CharE, SegmentDP } },
+  { 500, { SegmentDP, CharG, CharA | SegmentDP, CharM, CharE | SegmentDP, 0 } },
+  { 500, { 0, CharG | SegmentDP, CharA, CharM | SegmentDP, CharE, SegmentDP } },
+
+  { 0, { 0, 0, 0, 0, 0, 0 } }
+};
+
+
+
+void LoseTheGameState::setup()
+{
+  animationTime = currentTime;
+  animationStep = 0;
+}
+
+void LoseTheGameState::loop()
+{
+  if (buttonA->pressed() || buttonB->pressed())
+  {
+    setCurrentState(new DefaultState());
+  }
+
+  if (currentTime - animationTime > animation[animationStep].time)
+  {
+    animationStep++;
+    animationTime = currentTime;
+
+    if (animation[animationStep].time == 0)
+      setCurrentState(new DefaultState());
+  }
+
+  display->writeRaw(animation[animationStep].frame);
+}

StateLoseTheGame.h

@@ -0,0 +1,25 @@
+#ifndef StateLoseTheGame_h
+#define StateLoseTheGame_h
+
+#include "Arduino.h"
+#include "StateHandler.h"
+
+
+/**
+ * Lose the game state
+ *
+ * Note that the animation in this state is hardcoded
+ * to 6 digits.
+**/
+class LoseTheGameState : public AbstractStateHandler
+{
+  public:
+    void setup();
+    void loop();
+
+  private:
+    unsigned long animationTime;
+    byte animationStep;
+};
+
+#endif

StateReset.cpp

@@ -0,0 +1,114 @@
+#include "StateReset.h"
+#include "Globals.h"
+#include "NerfStatTrakConfig.h"
+#include "StateDefault.h"
+
+
+void ResetState::setup()
+{
+  intro = true;
+  introStart = currentTime;
+
+  outro = false;
+  selected = 0;
+}
+
+
+void ResetState::loop()
+{
+  if (intro)
+  {
+    if (currentTime - introStart >= NerfResetIntroTime)
+      intro = false;
+
+    char text[] = "Reset";
+    display->writeTextLeft(text);
+    return;
+  }
+
+  if (outro)
+  {
+    loopOutro();
+    return;
+  }
+
+
+  if (buttonA->changed() && !buttonA->pressed())
+  {
+    switch (selected)
+    {
+      case 0:
+        setCurrentState(new DefaultState());
+        return;
+
+      case 1:
+        resetHits();
+        break;
+
+      case 2:
+        resetShots();
+        break;
+
+      case 3:
+        resetHits();
+        resetShots();
+        break;
+    }
+
+    outroStart = currentTime;
+    outro = true;
+    return;
+  }
+
+  if (buttonB->changed() && !buttonB->pressed())
+  {
+    selected++;
+    if (selected > 3)
+      selected = 0;
+  }
+
+
+  switch (selected)
+  {
+    case 0:
+    {
+      char text[] = "Cancel";
+      display->writeTextLeft(text);
+      break;
+    }
+
+    case 1:
+    {
+      char text[] = "Hits";
+      display->writeTextLeft(text);
+      break;
+    }
+
+    case 2:
+    {
+      char text[] = "Shots";
+      display->writeTextLeft(text);
+      break;
+    }
+
+    case 3:
+    {
+      char text[] = "Both";
+      display->writeTextLeft(text);
+      break;
+    }
+  }
+}
+
+
+void ResetState::loopOutro()
+{
+  if (currentTime - outroStart >= NerfResetOutroTime)
+  {
+    setCurrentState(new DefaultState());
+    return;
+  }
+
+  char text[] = "Done";
+  display->writeTextLeft(text);
+}

StateReset.h

@@ -0,0 +1,31 @@
+#ifndef StateReset_h
+#define StateReset_h
+
+#include "StateHandler.h"
+#include "Arduino.h"
+
+
+/**
+ * Reset state
+ *
+ * Shows a menu providing reset options. A confirms the
+ * selection, B switches to the next.
+**/
+class ResetState : public AbstractStateHandler
+{
+  private:
+    bool intro;
+    unsigned long introStart;
+    bool outro;
+    unsigned long outroStart;
+    byte selected;
+
+  protected:
+    void loopOutro();
+
+  public:
+    void setup();
+    void loop();
+};
+
+#endif

StateUserUnknown.cpp

@@ -0,0 +1,65 @@
+#include "StateUserUnknown.h"
+#include "Globals.h"
+#include "StateDefault.h"
+
+
+void UserUnknownState::setup()
+{
+  animationTime = currentTime;
+  animationStep = 0;
+}
+
+void UserUnknownState::loop()
+{
+  if (buttonA->pressed() || buttonB->pressed())
+  {
+    setCurrentState(new DefaultState());
+  }
+
+  if (currentTime - animationTime > 500)
+  {
+    animationStep++;
+    animationTime = currentTime;
+
+    if (animationStep == 12)
+      animationStep = 0;
+  }
+
+  switch (animationStep)
+  {
+    case 0:
+    case 2:
+    case 4:
+    {
+      char text[] = "ERROR";
+      display->writeTextLeft(text);
+      break;
+    }
+
+    case 1:
+    case 3:
+    case 5:
+    {
+      display->clear();
+      break;
+    }
+
+    case 6:
+    case 7:
+    case 8:
+    {
+      char text[] = "user";
+      display->writeTextLeft(text);
+      break;
+    }
+
+    case 9:
+    case 10:
+    case 11:
+    {
+      char text[] = "unknwn";
+      display->writeTextLeft(text);
+      break;
+    }
+  }
+}

StateUserUnknown.h

@@ -0,0 +1,24 @@
+#ifndef StateUserUnknown_h
+#define StateUserUnknown_h
+
+#include "Arduino.h"
+#include "StateHandler.h"
+
+
+/**
+ * "User unknown" state
+ *
+ * Displays "Error user unknwn" until a button is pressed.
+**/
+class UserUnknownState : public AbstractStateHandler
+{
+  public:
+    void setup();
+    void loop();
+
+  private:
+    unsigned long animationTime;
+    byte animationStep;
+};
+
+#endif

eagle/Driver board.brd

@@ -0,0 +1,618 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!DOCTYPE eagle SYSTEM "eagle.dtd">
+<eagle version="7.7.0">
+<drawing>
+<settings>
+<setting alwaysvectorfont="no"/>
+<setting verticaltext="up"/>
+</settings>
+<grid distance="0.25" unitdist="mm" unit="mm" style="dots" multiple="1" display="yes" altdistance="0.025" altunitdist="inch" altunit="inch"/>
+<layers>
+<layer number="1" name="Top" color="4" fill="1" visible="yes" active="yes"/>
+<layer number="16" name="Bottom" color="1" fill="1" visible="yes" active="yes"/>
+<layer number="17" name="Pads" color="2" fill="1" visible="yes" active="yes"/>
+<layer number="18" name="Vias" color="2" fill="1" visible="yes" active="yes"/>
+<layer number="19" name="Unrouted" color="6" fill="1" visible="yes" active="yes"/>
+<layer number="20" name="Dimension" color="15" fill="1" visible="yes" active="yes"/>
+<layer number="21" name="tPlace" color="7" fill="1" visible="yes" active="yes"/>
+<layer number="22" name="bPlace" color="7" fill="1" visible="yes" active="yes"/>
+<layer number="23" name="tOrigins" color="15" fill="1" visible="yes" active="yes"/>
+<layer number="24" name="bOrigins" color="15" fill="1" visible="yes" active="yes"/>
+<layer number="25" name="tNames" color="7" fill="1" visible="yes" active="yes"/>
+<layer number="26" name="bNames" color="7" fill="1" visible="yes" active="yes"/>
+<layer number="27" name="tValues" color="7" fill="1" visible="yes" active="yes"/>
+<layer number="28" name="bValues" color="7" fill="1" visible="yes" active="yes"/>
+<layer number="29" name="tStop" color="7" fill="3" visible="yes" active="yes"/>
+<layer number="30" name="bStop" color="7" fill="6" visible="yes" active="yes"/>
+<layer number="31" name="tCream" color="7" fill="4" visible="yes" active="yes"/>
+<layer number="32" name="bCream" color="7" fill="5" visible="yes" active="yes"/>
+<layer number="33" name="tFinish" color="6" fill="3" visible="yes" active="yes"/>
+<layer number="34" name="bFinish" color="6" fill="6" visible="yes" active="yes"/>
+<layer number="35" name="tGlue" color="7" fill="4" visible="yes" active="yes"/>
+<layer number="36" name="bGlue" color="7" fill="5" visible="yes" active="yes"/>
+<layer number="37" name="tTest" color="7" fill="1" visible="yes" active="yes"/>
+<layer number="38" name="bTest" color="7" fill="1" visible="yes" active="yes"/>
+<layer number="39" name="tKeepout" color="4" fill="11" visible="yes" active="yes"/>
+<layer number="40" name="bKeepout" color="1" fill="11" visible="yes" active="yes"/>
+<layer number="41" name="tRestrict" color="4" fill="10" visible="yes" active="yes"/>
+<layer number="42" name="bRestrict" color="1" fill="10" visible="yes" active="yes"/>
+<layer number="43" name="vRestrict" color="2" fill="10" visible="yes" active="yes"/>
+<layer number="44" name="Drills" color="7" fill="1" visible="yes" active="yes"/>
+<layer number="45" name="Holes" color="7" fill="1" visible="yes" active="yes"/>
+<layer number="46" name="Milling" color="3" fill="1" visible="yes" active="yes"/>
+<layer number="47" name="Measures" color="7" fill="1" visible="yes" active="yes"/>
+<layer number="48" name="Document" color="7" fill="1" visible="yes" active="yes"/>
+<layer number="49" name="Reference" color="7" fill="1" visible="yes" active="yes"/>
+<layer number="51" name="tDocu" color="7" fill="1" visible="yes" active="yes"/>
+<layer number="52" name="bDocu" color="7" fill="1" visible="yes" active="yes"/>
+<layer number="90" name="Modules" color="5" fill="1" visible="no" active="no"/>
+<layer number="91" name="Nets" color="2" fill="1" visible="no" active="no"/>
+<layer number="92" name="Busses" color="1" fill="1" visible="no" active="no"/>
+<layer number="93" name="Pins" color="2" fill="1" visible="no" active="no"/>
+<layer number="94" name="Symbols" color="4" fill="1" visible="no" active="no"/>
+<layer number="95" name="Names" color="7" fill="1" visible="no" active="no"/>
+<layer number="96" name="Values" color="7" fill="1" visible="no" active="no"/>
+<layer number="97" name="Info" color="7" fill="1" visible="no" active="no"/>
+<layer number="98" name="Guide" color="6" fill="1" visible="no" active="no"/>
+</layers>
+<board>
+<plain>
+<wire x1="23.9" y1="31.71" x2="72.06" y2="31.71" width="0" layer="20"/>
+<wire x1="72.06" y1="31.71" x2="72.06" y2="52.695" width="0" layer="20"/>
+<wire x1="72.06" y1="52.695" x2="23.805" y2="52.65" width="0" layer="20"/>
+<wire x1="23.805" y1="52.65" x2="23.9" y2="31.71" width="0" layer="20"/>
+<dimension x1="23.9" y1="52.695" x2="23.9" y2="31.71" x3="18.425390625" y3="42.2025" textsize="1.778" layer="47"/>
+<dimension x1="23.9" y1="52.695" x2="72.06" y2="52.695" x3="47.98" y3="59.244996875" textsize="1.778" layer="47"/>
+<text x="35.25" y="52.75" size="1.016" layer="49" rot="MR90">Data</text>
+<text x="40" y="52.75" size="1.016" layer="49" rot="MR90">Latch</text>
+<text x="42.5" y="52.75" size="1.016" layer="49" rot="MR90">Clock</text>
+<text x="30" y="52.75" size="1.016" layer="49" rot="MR90">+5V</text>
+<text x="37.75" y="52.75" size="1.016" layer="49" rot="MR90">Ground</text>
+<text x="51.75" y="31" size="1.016" layer="49" rot="MR270">A</text>
+<text x="54.25" y="31" size="1.016" layer="49" rot="MR270">B</text>
+<text x="56.75" y="31" size="1.016" layer="49" rot="MR270">C</text>
+<text x="59.25" y="31" size="1.016" layer="49" rot="MR270">D</text>
+<text x="61.75" y="31" size="1.016" layer="49" rot="MR270">E</text>
+<text x="64.25" y="31" size="1.016" layer="49" rot="MR270">F</text>
+<text x="66.75" y="31" size="1.016" layer="49" rot="MR270">G</text>
+<text x="69.5" y="31" size="1.016" layer="49" rot="MR270">DP</text>
+<text x="28.5" y="31" size="1.016" layer="49" rot="MR270">D6</text>
+<text x="31" y="31" size="1.016" layer="49" rot="MR270">D5</text>
+<text x="33.5" y="31" size="1.016" layer="49" rot="MR270">D4</text>
+<text x="36" y="31" size="1.016" layer="49" rot="MR270">D3</text>
+<text x="38.75" y="31" size="1.016" layer="49" rot="MR270">D2</text>
+<text x="41.25" y="31" size="1.016" layer="49" rot="MR270">D1</text>
+</plain>
+<libraries>
+<library name="74xx-eu">
+<description>&lt;b&gt;TTL Devices, 74xx Series with European Symbols&lt;/b&gt;&lt;p&gt;
+Based on the following sources:
+&lt;ul&gt;
+&lt;li&gt;Texas Instruments &lt;i&gt;TTL Data Book&lt;/i&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;Volume 1, 1996.
+&lt;li&gt;TTL Data Book, Volume 2 , 1993
+&lt;li&gt;National Seminconductor Databook 1990, ALS/LS Logic
+&lt;li&gt;ttl 74er digital data dictionary, ECA Electronic + Acustic GmbH, ISBN 3-88109-032-0
+&lt;li&gt;http://icmaster.com/ViewCompare.asp
+&lt;/ul&gt;
+&lt;author&gt;Created by librarian@cadsoft.de&lt;/author&gt;</description>
+<packages>
+<package name="DIL16">
+<description>&lt;b&gt;Dual In Line Package&lt;/b&gt;</description>
+<wire x1="10.16" y1="2.921" x2="-10.16" y2="2.921" width="0.1524" layer="21"/>
+<wire x1="-10.16" y1="-2.921" x2="10.16" y2="-2.921" width="0.1524" layer="21"/>
+<wire x1="10.16" y1="2.921" x2="10.16" y2="-2.921" width="0.1524" layer="21"/>
+<wire x1="-10.16" y1="2.921" x2="-10.16" y2="1.016" width="0.1524" layer="21"/>
+<wire x1="-10.16" y1="-2.921" x2="-10.16" y2="-1.016" width="0.1524" layer="21"/>
+<wire x1="-10.16" y1="1.016" x2="-10.16" y2="-1.016" width="0.1524" layer="21" curve="-180"/>
+<pad name="1" x="-8.89" y="-3.81" drill="0.8128" shape="long" rot="R90"/>
+<pad name="2" x="-6.35" y="-3.81" drill="0.8128" shape="long" rot="R90"/>
+<pad name="7" x="6.35" y="-3.81" drill="0.8128" shape="long" rot="R90"/>
+<pad name="8" x="8.89" y="-3.81" drill="0.8128" shape="long" rot="R90"/>
+<pad name="3" x="-3.81" y="-3.81" drill="0.8128" shape="long" rot="R90"/>
+<pad name="4" x="-1.27" y="-3.81" drill="0.8128" shape="long" rot="R90"/>
+<pad name="6" x="3.81" y="-3.81" drill="0.8128" shape="long" rot="R90"/>
+<pad name="5" x="1.27" y="-3.81" drill="0.8128" shape="long" rot="R90"/>
+<pad name="9" x="8.89" y="3.81" drill="0.8128" shape="long" rot="R90"/>
+<pad name="10" x="6.35" y="3.81" drill="0.8128" shape="long" rot="R90"/>
+<pad name="11" x="3.81" y="3.81" drill="0.8128" shape="long" rot="R90"/>
+<pad name="12" x="1.27" y="3.81" drill="0.8128" shape="long" rot="R90"/>
+<pad name="13" x="-1.27" y="3.81" drill="0.8128" shape="long" rot="R90"/>
+<pad name="14" x="-3.81" y="3.81" drill="0.8128" shape="long" rot="R90"/>
+<pad name="15" x="-6.35" y="3.81" drill="0.8128" shape="long" rot="R90"/>
+<pad name="16" x="-8.89" y="3.81" drill="0.8128" shape="long" rot="R90"/>
+<text x="-10.541" y="-2.921" size="1.27" layer="25" ratio="10" rot="R90">&gt;NAME</text>
+<text x="-7.493" y="-0.635" size="1.27" layer="27" ratio="10">&gt;VALUE</text>
+</package>
+</packages>
+</library>
+<library name="uln-udn">
+<description>&lt;b&gt;Driver Arrays&lt;/b&gt;&lt;p&gt;
+ULN and UDN Series&lt;p&gt;
+&lt;author&gt;Created by librarian@cadsoft.de&lt;/author&gt;</description>
+<packages>
+<package name="DIL18">
+<description>&lt;b&gt;Dual In Line Package&lt;/b&gt;</description>
+<wire x1="11.43" y1="2.921" x2="-11.43" y2="2.921" width="0.1524" layer="21"/>
+<wire x1="-11.43" y1="-2.921" x2="11.43" y2="-2.921" width="0.1524" layer="21"/>
+<wire x1="11.43" y1="2.921" x2="11.43" y2="-2.921" width="0.1524" layer="21"/>
+<wire x1="-11.43" y1="2.921" x2="-11.43" y2="1.016" width="0.1524" layer="21"/>
+<wire x1="-11.43" y1="-2.921" x2="-11.43" y2="-1.016" width="0.1524" layer="21"/>
+<wire x1="-11.43" y1="1.016" x2="-11.43" y2="-1.016" width="0.1524" layer="21" curve="-180"/>
+<pad name="1" x="-10.16" y="-3.81" drill="0.8128" shape="long" rot="R90"/>
+<pad name="2" x="-7.62" y="-3.81" drill="0.8128" shape="long" rot="R90"/>
+<pad name="7" x="5.08" y="-3.81" drill="0.8128" shape="long" rot="R90"/>
+<pad name="8" x="7.62" y="-3.81" drill="0.8128" shape="long" rot="R90"/>
+<pad name="3" x="-5.08" y="-3.81" drill="0.8128" shape="long" rot="R90"/>
+<pad name="4" x="-2.54" y="-3.81" drill="0.8128" shape="long" rot="R90"/>
+<pad name="6" x="2.54" y="-3.81" drill="0.8128" shape="long" rot="R90"/>
+<pad name="5" x="0" y="-3.81" drill="0.8128" shape="long" rot="R90"/>
+<pad name="9" x="10.16" y="-3.81" drill="0.8128" shape="long" rot="R90"/>
+<pad name="10" x="10.16" y="3.81" drill="0.8128" shape="long" rot="R90"/>
+<pad name="11" x="7.62" y="3.81" drill="0.8128" shape="long" rot="R90"/>
+<pad name="12" x="5.08" y="3.81" drill="0.8128" shape="long" rot="R90"/>
+<pad name="13" x="2.54" y="3.81" drill="0.8128" shape="long" rot="R90"/>
+<pad name="14" x="0" y="3.81" drill="0.8128" shape="long" rot="R90"/>
+<pad name="15" x="-2.54" y="3.81" drill="0.8128" shape="long" rot="R90"/>
+<pad name="16" x="-5.08" y="3.81" drill="0.8128" shape="long" rot="R90"/>
+<pad name="17" x="-7.62" y="3.81" drill="0.8128" shape="long" rot="R90"/>
+<pad name="18" x="-10.16" y="3.81" drill="0.8128" shape="long" rot="R90"/>
+<text x="-11.684" y="-3.048" size="1.27" layer="25" ratio="10" rot="R90">&gt;NAME</text>
+<text x="-9.525" y="-0.635" size="1.27" layer="27" ratio="10">&gt;VALUE</text>
+</package>
+</packages>
+</library>
+</libraries>
+<attributes>
+</attributes>
+<variantdefs>
+</variantdefs>
+<classes>
+<class number="0" name="default" width="0.508" drill="0">
+</class>
+</classes>
+<designrules name="default *">
+<description language="de">&lt;b&gt;EAGLE Design Rules&lt;/b&gt;
+&lt;p&gt;
+Die Standard-Design-Rules sind so gewählt, dass sie für 
+die meisten Anwendungen passen. Sollte ihre Platine 
+besondere Anforderungen haben, treffen Sie die erforderlichen
+Einstellungen hier und speichern die Design Rules unter 
+einem neuen Namen ab.</description>
+<description language="en">&lt;b&gt;EAGLE Design Rules&lt;/b&gt;
+&lt;p&gt;
+The default Design Rules have been set to cover
+a wide range of applications. Your particular design
+may have different requirements, so please make the
+necessary adjustments and save your customized
+design rules under a new name.</description>
+<param name="layerSetup" value="(1*16)"/>
+<param name="mtCopper" value="0.035mm 0.035mm 0.035mm 0.035mm 0.035mm 0.035mm 0.035mm 0.035mm 0.035mm 0.035mm 0.035mm 0.035mm 0.035mm 0.035mm 0.035mm 0.035mm"/>
+<param name="mtIsolate" value="1.5mm 0.15mm 0.2mm 0.15mm 0.2mm 0.15mm 0.2mm 0.15mm 0.2mm 0.15mm 0.2mm 0.15mm 0.2mm 0.15mm 0.2mm"/>
+<param name="mdWireWire" value="8mil"/>
+<param name="mdWirePad" value="8mil"/>
+<param name="mdWireVia" value="8mil"/>
+<param name="mdPadPad" value="8mil"/>
+<param name="mdPadVia" value="8mil"/>
+<param name="mdViaVia" value="8mil"/>
+<param name="mdSmdPad" value="8mil"/>
+<param name="mdSmdVia" value="8mil"/>
+<param name="mdSmdSmd" value="8mil"/>
+<param name="mdViaViaSameLayer" value="8mil"/>
+<param name="mnLayersViaInSmd" value="2"/>
+<param name="mdCopperDimension" value="40mil"/>
+<param name="mdDrill" value="8mil"/>
+<param name="mdSmdStop" value="0mil"/>
+<param name="msWidth" value="30mil"/>
+<param name="msDrill" value="24mil"/>
+<param name="msMicroVia" value="9.99mm"/>
+<param name="msBlindViaRatio" value="0.5"/>
+<param name="rvPadTop" value="0.25"/>
+<param name="rvPadInner" value="0.25"/>
+<param name="rvPadBottom" value="0.25"/>
+<param name="rvViaOuter" value="0.25"/>
+<param name="rvViaInner" value="0.25"/>
+<param name="rvMicroViaOuter" value="0.25"/>
+<param name="rvMicroViaInner" value="0.25"/>
+<param name="rlMinPadTop" value="10mil"/>
+<param name="rlMaxPadTop" value="20mil"/>
+<param name="rlMinPadInner" value="10mil"/>
+<param name="rlMaxPadInner" value="20mil"/>
+<param name="rlMinPadBottom" value="10mil"/>
+<param name="rlMaxPadBottom" value="20mil"/>
+<param name="rlMinViaOuter" value="8mil"/>
+<param name="rlMaxViaOuter" value="20mil"/>
+<param name="rlMinViaInner" value="8mil"/>
+<param name="rlMaxViaInner" value="20mil"/>
+<param name="rlMinMicroViaOuter" value="4mil"/>
+<param name="rlMaxMicroViaOuter" value="20mil"/>
+<param name="rlMinMicroViaInner" value="4mil"/>
+<param name="rlMaxMicroViaInner" value="20mil"/>
+<param name="psTop" value="-1"/>
+<param name="psBottom" value="-1"/>
+<param name="psFirst" value="-1"/>
+<param name="psElongationLong" value="100"/>
+<param name="psElongationOffset" value="100"/>
+<param name="mvStopFrame" value="1"/>
+<param name="mvCreamFrame" value="0"/>
+<param name="mlMinStopFrame" value="4mil"/>
+<param name="mlMaxStopFrame" value="4mil"/>
+<param name="mlMinCreamFrame" value="0mil"/>
+<param name="mlMaxCreamFrame" value="0mil"/>
+<param name="mlViaStopLimit" value="0mil"/>
+<param name="srRoundness" value="0"/>
+<param name="srMinRoundness" value="0mil"/>
+<param name="srMaxRoundness" value="0mil"/>
+<param name="slThermalIsolate" value="10mil"/>
+<param name="slThermalsForVias" value="0"/>
+<param name="dpMaxLengthDifference" value="10mm"/>
+<param name="dpGapFactor" value="2.5"/>
+<param name="checkGrid" value="0"/>
+<param name="checkAngle" value="0"/>
+<param name="checkFont" value="1"/>
+<param name="checkRestrict" value="1"/>
+<param name="useDiameter" value="13"/>
+<param name="maxErrors" value="50"/>
+</designrules>
+<autorouter>
+<pass name="Default">
+<param name="RoutingGrid" value="50mil"/>
+<param name="AutoGrid" value="1"/>
+<param name="Efforts" value="2"/>
+<param name="TopRouterVariant" value="1"/>
+<param name="tpViaShape" value="round"/>
+<param name="PrefDir.1" value="0"/>
+<param name="PrefDir.2" value="0"/>
+<param name="PrefDir.3" value="0"/>
+<param name="PrefDir.4" value="0"/>
+<param name="PrefDir.5" value="0"/>
+<param name="PrefDir.6" value="0"/>
+<param name="PrefDir.7" value="0"/>
+<param name="PrefDir.8" value="0"/>
+<param name="PrefDir.9" value="0"/>
+<param name="PrefDir.10" value="0"/>
+<param name="PrefDir.11" value="0"/>
+<param name="PrefDir.12" value="0"/>
+<param name="PrefDir.13" value="0"/>
+<param name="PrefDir.14" value="0"/>
+<param name="PrefDir.15" value="0"/>
+<param name="PrefDir.16" value="a"/>
+<param name="cfVia" value="8"/>
+<param name="cfNonPref" value="5"/>
+<param name="cfChangeDir" value="2"/>
+<param name="cfOrthStep" value="2"/>
+<param name="cfDiagStep" value="3"/>
+<param name="cfExtdStep" value="0"/>
+<param name="cfBonusStep" value="1"/>
+<param name="cfMalusStep" value="1"/>
+<param name="cfPadImpact" value="4"/>
+<param name="cfSmdImpact" value="4"/>
+<param name="cfBusImpact" value="0"/>
+<param name="cfHugging" value="3"/>
+<param name="cfAvoid" value="4"/>
+<param name="cfPolygon" value="10"/>
+<param name="cfBase.1" value="0"/>
+<param name="cfBase.2" value="1"/>
+<param name="cfBase.3" value="1"/>
+<param name="cfBase.4" value="1"/>
+<param name="cfBase.5" value="1"/>
+<param name="cfBase.6" value="1"/>
+<param name="cfBase.7" value="1"/>
+<param name="cfBase.8" value="1"/>
+<param name="cfBase.9" value="1"/>
+<param name="cfBase.10" value="1"/>
+<param name="cfBase.11" value="1"/>
+<param name="cfBase.12" value="1"/>
+<param name="cfBase.13" value="1"/>
+<param name="cfBase.14" value="1"/>
+<param name="cfBase.15" value="1"/>
+<param name="cfBase.16" value="0"/>
+<param name="mnVias" value="20"/>
+<param name="mnSegments" value="9999"/>
+<param name="mnExtdSteps" value="9999"/>
+<param name="mnRipupLevel" value="10"/>
+<param name="mnRipupSteps" value="100"/>
+<param name="mnRipupTotal" value="100"/>
+</pass>
+<pass name="Follow-me" refer="Default" active="yes">
+</pass>
+<pass name="Busses" refer="Default" active="yes">
+<param name="cfNonPref" value="4"/>
+<param name="cfBusImpact" value="4"/>
+<param name="cfHugging" value="0"/>
+<param name="mnVias" value="0"/>
+</pass>
+<pass name="Route" refer="Default" active="yes">
+</pass>
+<pass name="Optimize1" refer="Default" active="yes">
+<param name="cfVia" value="99"/>
+<param name="cfExtdStep" value="10"/>
+<param name="cfHugging" value="1"/>
+<param name="mnExtdSteps" value="1"/>
+<param name="mnRipupLevel" value="0"/>
+</pass>
+<pass name="Optimize2" refer="Optimize1" active="yes">
+<param name="cfNonPref" value="0"/>
+<param name="cfChangeDir" value="6"/>
+<param name="cfExtdStep" value="0"/>
+<param name="cfBonusStep" value="2"/>
+<param name="cfMalusStep" value="2"/>
+<param name="cfPadImpact" value="2"/>
+<param name="cfSmdImpact" value="2"/>
+<param name="cfHugging" value="0"/>
+</pass>
+<pass name="Optimize3" refer="Optimize2" active="yes">
+<param name="cfChangeDir" value="8"/>
+<param name="cfPadImpact" value="0"/>
+<param name="cfSmdImpact" value="0"/>
+</pass>
+<pass name="Optimize4" refer="Optimize3" active="yes">
+<param name="cfChangeDir" value="25"/>
+</pass>
+</autorouter>
+<elements>
+<element name="IC1" library="74xx-eu" package="DIL16" value="74HC595N" x="61.71" y="45.72"/>
+<element name="IC2" library="74xx-eu" package="DIL16" value="74HC595N" x="39.37" y="45.72"/>
+<element name="IC3" library="uln-udn" package="DIL18" value="UDN2981A" x="35.58" y="37.425" rot="R180"/>
+<element name="IC4" library="uln-udn" package="DIL18" value="ULN2803A" x="58.69" y="37.425" rot="R180"/>
+</elements>
+<signals>
+<signal name="GND">
+<contactref element="IC2" pad="8"/>
+<contactref element="IC3" pad="10"/>
+<contactref element="IC4" pad="9"/>
+<contactref element="IC2" pad="13"/>
+<contactref element="IC1" pad="8"/>
+<contactref element="IC1" pad="13"/>
+<wire x1="48.26" y1="41.91" x2="46.76" y2="44.315" width="0.8128" layer="16"/>
+<wire x1="46.76" y1="44.315" x2="38.1" y2="44.315" width="0.8128" layer="16"/>
+<wire x1="38.1" y1="44.315" x2="38.1" y2="49.53" width="0.8128" layer="16"/>
+<wire x1="60.44" y1="44.315" x2="60.44" y2="49.53" width="0.8128" layer="16"/>
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+<wire x1="28.275546875" y1="48.761390625" x2="28.27895" y2="48.875321875" width="0.1" layer="16"/>
+<wire x1="28.27895" y1="48.875321875" x2="28.24005625" y2="49.261396875" width="0.1" layer="16"/>
+<wire x1="28.24005625" y1="49.261396875" x2="28.12839375" y2="49.620971875" width="0.1" layer="16"/>
+<wire x1="28.12839375" y1="49.620971875" x2="27.951828125" y2="49.946353125" width="0.1" layer="16"/>
+<wire x1="27.951828125" y1="49.946353125" x2="27.717890625" y2="50.229840625" width="0.1" layer="16"/>
+<wire x1="27.717890625" y1="50.229840625" x2="27.4343625" y2="50.46378125" width="0.1" layer="16"/>
+<wire x1="27.4343625" y1="50.46378125" x2="27.10901875" y2="50.6403875" width="0.1" layer="16"/>
+<wire x1="27.10901875" y1="50.6403875" x2="26.749403125" y2="50.752009375" width="0.1" layer="16"/>
+<wire x1="26.749403125" y1="50.752009375" x2="26.363328125" y2="50.79094375" width="0.1" layer="16"/>
+</signal>
+</signals>
+</board>
+</drawing>
+</eagle>

lib/SegmentDisplay.cpp

@@ -1,125 +0,0 @@
-#include "SegmentDisplay.h"
-
-
-void SegmentDisplay::begin()
-{
-  #if !defined(SDSupportSPI)
-  pinMode(latchPin, OUTPUT);
-  pinMode(clockPin, OUTPUT);
-  pinMode(dataPin, OUTPUT);
-
-  digitalWrite(clockPin, LOW);
-  digitalWrite(dataPin, LOW);
-  #endif
-
-  digitalWrite(latchPin, HIGH);
-  digitalWrite(latchPin, LOW);
-  digitalWrite(latchPin, HIGH);
-
-  #if defined(SDSupportSPI)
-  SPI.begin();
-  //SPI.setClockDivider(SPI_CLOCK_DIV128);
-  #endif
-}
-
-
-void SegmentDisplay::end()
-{
-  #if defined(SDSupportSPI)
-  SPI.end();
-  #endif
-}
-
-
-void SegmentDisplay::writeNumber(int value)
-{
-  unsigned char digitMask = 1;
-
-  for (unsigned char digit = digits; digit > 0; digit--)
-  {
-    writeDigit((unsigned char)(value % 10), digitMask);
-
-    value /= 10;
-    digitMask <<= 1;
-  }
-}
-
-
-#define ASCIIZero 48
-#define ASCIINine 57
-#define ASCIIUppercaseA 65
-#define ASCIIUppercaseZ 90
-#define ASCIILowercaseA 97
-#define ASCIILowercaseZ 122
-
-
-void SegmentDisplay::writeText(char* value)
-{
-  unsigned char digitMask = 1;
-  unsigned char digit = digits;
-  unsigned char charValue;
-
-  while (digit > 0 && value != '\0')
-  {
-    charValue = *value;
-
-    // Lowercase
-    if (charValue >= ASCIILowercaseA && charValue <= ASCIILowercaseZ)
-      writeDisplay(SDCharacterSegments[charValue - ASCIILowercaseA], digitMask);
-
-    // Uppercase
-    else if  (charValue >= ASCIIUppercaseA && charValue <= ASCIIUppercaseZ)
-      writeDisplay(SDCharacterSegments[charValue - ASCIIUppercaseA], digitMask);
-
-    // Numbers
-    else if (charValue >= ASCIIZero && charValue <= ASCIINine)
-      writeDisplay(SDNumberSegments[charValue - ASCIIZero], digitMask);
-
-    // Space / unknown
-    else
-      writeDisplay(0, digitMask);
-
-    digit--;
-    digitMask <<= 1;
-    value++;
-  }
-
-  while (digit > 0)
-  {
-    writeDisplay(0, digitMask);
-
-    digit--;
-    digitMask <<= 1;
-  }
-}
-
-
-inline void SegmentDisplay::writeDigit(unsigned char value, unsigned char digitMask)
-{
-  writeDisplay(SDNumberSegments[value], digitMask);
-}
-
-
-#if defined(SDSupportSPI)
-
-inline void SegmentDisplay::writeDisplay(unsigned char characterMask, unsigned char digitMask)
-{
-  SPI.beginTransaction(SPISettings(clockSpeed, MSBFIRST, SPI_MODE0));
-  SPI.transfer(characterMask);
-  SPI.transfer(digitMask);
-  SPI.endTransaction();
-}
-
-#else
-
-inline void SegmentDisplay::writeDisplay(unsigned char characterMask, unsigned char digitMask)
-{
-  digitalWrite(latchPin, LOW);
-
-  shiftOut(dataPin, clockPin, MSBFIRST, characterMask);
-  shiftOut(dataPin, clockPin, MSBFIRST, digitMask);
-
-  digitalWrite(latchPin, HIGH);
-}
-
-#endif

lib/SegmentDisplay.h

@@ -1,71 +0,0 @@
-#ifndef SegmentDisplay_h
-#define SegmentDisplay_h
-
-#include "Arduino.h"
-#include "SPI.h"
-
-#include "SegmentDisplayChars.h"
-
-/**
- * Drives up to 8 digits using two 8-bit shift registers.
- *
- * Pushes out the segment bits first and the display selection
- * second: connect the display select register first and chain the
- * segment register to it's output.
- *
- * Least significant bit as defined in SegmentDisplayChars.h:
- * - Last digit
- * - Segment A
-**/
-
-// Comment to use shiftOut. Set clockPin and dataPin instead.
-#define SDSupportSPI
-
-
-class SegmentDisplay
-{
-  public:
-    void begin();
-    void end();
-
-    void writeNumber(int value);
-    void writeText(char* value);
-
-    int getDigits() { return digits; }
-    void setDigits(int value) { digits = value; }
-
-    int getLatchPin() { return latchPin; }
-    void setLatchPin(int value) { latchPin = value; }
-
-    #if defined(SDSupportSPI)
-    long getClockSpeed() { return clockSpeed; }
-    void setClockSpeed(long value) { clockSpeed = value; }
-    #endif
-
-    #if !defined(SDSupportSPI)
-    int getClockPin() { return clockPin; }
-    void setClockPin(int value) { clockPin = value; }
-
-    int getDataPin() { return dataPin; }
-    void setDataPin(int value) { dataPin = value; }
-    #endif
-
-  protected:
-    void writeDigit(byte value, byte digitMask);
-    void writeDisplay(byte characterMask, byte digitMask);
-
-  private:
-    int digits = 6;
-    int latchPin = SS;
-
-    #if defined(SDSupportSPI)
-    long clockSpeed = 20000000;
-    #endif
-
-    #if !defined(SDSupportSPI)
-    int clockPin = SCK;
-    int dataPin = MOSI;
-    #endif
-};
-
-#endif

lib/SegmentDisplayChars.h

@@ -1,312 +0,0 @@
-#ifndef SegmentDisplayChars_h
-#define SegmentDisplayChars_h
-
-#include "avr/pgmspace.h"
-
-
-#define SegmentA 1  // Top
-#define SegmentB 2  // Top right
-#define SegmentC 4  // Bottom right
-#define SegmentD 8  // Bottom
-#define SegmentE 16 // Bottom left
-#define SegmentF 32 // Top left
-#define SegmentG 64 // Middle
-
-
-const byte SDNumberSegments[10] PROGMEM =
-{
-  /**
-   *  _
-   * | |
-   * |_|
-   *
-  **/
-  SegmentA | SegmentB | SegmentC | SegmentD | SegmentE | SegmentF,
-
-  /**
-   *
-   *   |
-   *   |
-   *
-  **/
-  SegmentB | SegmentC,
-
-  /**
-   *  _
-   *  _|
-   * |_
-   *
-  **/
-  SegmentA | SegmentB | SegmentD | SegmentE | SegmentG,
-
-  /**
-   *  _
-   *  _|
-   *  _|
-   *
-  **/
-  SegmentA | SegmentB | SegmentC | SegmentD | SegmentG,
-
-  /**
-   *
-   * |_|
-   *   |
-   *
-  **/
-  SegmentB | SegmentC | SegmentF | SegmentG,
-
-  /**
-   *  _
-   * |_
-   *  _|
-   *
-  **/
-  SegmentA | SegmentC | SegmentD | SegmentF | SegmentG,
-
-  /**
-   *  _
-   * |_
-   * |_|
-   *
-  **/
-  SegmentA | SegmentC | SegmentD | SegmentE | SegmentF | SegmentG,
-
-  /**
-   *  _
-   *   |
-   *   |
-   *
-  **/
-  SegmentA | SegmentB | SegmentC,
-
-  /**
-   *  _
-   * |_|
-   * |_|
-   *
-  **/
-  SegmentA | SegmentB | SegmentC | SegmentD | SegmentE | SegmentF | SegmentG,
-
-  /**
-   *  _
-   * |_|
-   *  _|
-   *
-  **/
-  SegmentA | SegmentB | SegmentC | SegmentD | SegmentF | SegmentG
-};
-
-
-
-const byte SDCharacterSegments[26] PROGMEM =
-{
-  /**
-   *  _
-   * |_|
-   * | |
-   *
-  **/
-  SegmentA | SegmentB | SegmentC | SegmentE | SegmentF | SegmentG,
-
-  /**
-   *
-   * |_
-   * |_|
-   *
-  **/
-  SegmentC | SegmentD | SegmentE | SegmentF | SegmentG,
-
-  /**
-   *  _
-   * |
-   * |_
-   *
-  **/
-  SegmentA | SegmentD | SegmentE | SegmentF,
-
-  /**
-   *
-   *  _|
-   * |_|
-   *
-  **/
-  SegmentB | SegmentC | SegmentD | SegmentE | SegmentG,
-
-  /**
-   *  _
-   * |_
-   * |_
-   *
-  **/
-  SegmentA | SegmentD | SegmentE | SegmentF | SegmentG,
-
-  /**
-   *  _
-   * |_
-   * |
-   *
-  **/
-  SegmentA | SegmentE | SegmentF | SegmentG,
-
-  /**
-   *  _
-   * |_|
-   *  _|
-   *
-  **/
-  SegmentA | SegmentB | SegmentC | SegmentD | SegmentF | SegmentG,
-
-  /**
-   *
-   * |_|
-   * | |
-   *
-  **/
-  SegmentB | SegmentC | SegmentD | SegmentF | SegmentG,
-
-  /**
-   *
-   * |
-   * |
-   *
-  **/
-  SegmentE | SegmentF,
-
-  /**
-   *
-   *   |
-   * |_|
-   *
-  **/
-  SegmentB | SegmentC | SegmentD | SegmentE,
-
-  /**
-   *
-   * |_
-   * |
-   *
-  **/
-  SegmentE | SegmentF | SegmentG,
-
-  /**
-   *
-   * |
-   * |_
-   *
-  **/
-  SegmentD | SegmentE | SegmentF,
-
-  /**
-   *  _
-   *
-   * | |
-   *
-  **/
-  SegmentA | SegmentC | SegmentE,
-
-  /**
-   *
-   *  _
-   * | |
-   *
-  **/
-  SegmentC | SegmentE | SegmentG,
-
-  /**
-   *  _
-   * | |
-   * |_|
-   *
-  **/
-  SegmentA | SegmentB | SegmentC | SegmentD | SegmentE | SegmentF,
-
-  /**
-   *  _
-   * |_|
-   * |
-   *
-  **/
-  SegmentA | SegmentB | SegmentE | SegmentF | SegmentG,
-
-  /**
-   *  _
-   * |_|
-   *   |
-   *
-  **/
-  SegmentA | SegmentB | SegmentC | SegmentF | SegmentG,
-
-  /**
-   *
-   *  _
-   * |
-   *
-  **/
-  SegmentE | SegmentG,
-
-  /**
-   *  _
-   * |_
-   *  _|
-   *
-  **/
-  SegmentA | SegmentC | SegmentD | SegmentF | SegmentG,
-
-  /**
-   *
-   * |_
-   * |_
-   *
-  **/
-  SegmentD | SegmentE | SegmentF | SegmentG,
-
-  /**
-   *
-   * | |
-   * |_|
-   *
-  **/
-  SegmentB | SegmentC | SegmentD | SegmentE | SegmentF,
-
-  /**
-   *
-   *
-   * |_|
-   *
-  **/
-  SegmentC | SegmentD | SegmentE,
-
-  /**
-   *
-   * | |
-   *  _
-   *
-  **/
-  SegmentB | SegmentD | SegmentF,
-
-  /**
-   *
-   *  _|
-   *   |
-   *
-  **/
-  SegmentB | SegmentC | SegmentG,
-
-  /**
-   *
-   * |_|
-   *  _|
-   *
-  **/
-  SegmentB | SegmentC | SegmentD | SegmentF | SegmentG,
-
-  /**
-   *  _
-   *  _|
-   * |_
-   *
-  **/
-  SegmentA | SegmentB | SegmentD | SegmentE | SegmentG
-};
-
-#endif

reference/SMA410363 - 3-digit 7-segment display.txt

@@ -1,13 +1,44 @@
+
+      Top view
+
+   D1 A  F  D2 D3 B
+ __|__|__|__|__|__|__
+|                    |
+|                    |
+|                    |
+|                    |
+|                    |
+|__ __ __ __ __ _____|
+   |  |  |  |  |
+   E  D  DP C  G
+
+
+
+     Bottom view
+
+   B  D3 D2 F  A  D1
+ __|__|__|__|__|__|__
+|                    |
+|                    |
+|                    |
+|                    |
+|                    |
+|_____ __ __ __ __ __|
+      |  |  |  |  |
+      G  C  DP D  E
+
+
+
 Pin   Assignment
 
-1     E (Bottom Left)
+1     E   Bottom Left
-2     D (Bottom)
+2     D   Bottom
-3     Dot
+3     DP  Dot point
-4     C (Bottom Right)
+4     C   Bottom Right
-5     G (Middle)
+5     G   Middle
-6     B (Top Right)
+6     B   Top Right
-7     Digit 3 anode (Right)
+7     D3  Digit 3 anode (Right)
-8     Digit 2 anode (Middle)
+8     D2  Digit 2 anode (Middle)
-9     F (Top Left)
+9     F   Top Left
-10    A (Top)
+10    A   Top
-11    Digit 1 anode (Left)
+11    D1  Digit 1 anode (Left)

reference/SN74HC595 - Serial in Parallel out 8-bit shift register.txt

@@ -0,0 +1,31 @@
+
+  VCC   Q0   DS   OE  STCP SHCP  MR  Q7S
+ __|____|____|____|____|____|____|____|__
+|                                        |
+|                                        |
+|\                                       |
+|/                                       |
+|                                        |
+|__ ____ ____ ____ ____ ____ ____ ____ __|
+   |    |    |    |    |    |    |    |
+   Q1   Q2   Q3   Q4   Q5   Q6   Q7  GND
+
+
+Pin   Assignment
+
+1     Q1
+2     Q2
+3     Q3
+4     Q4
+5     Q5
+6     Q6
+7     Q7
+8     GND   Ground
+9     Q7S   Serial output
+10    MR    Memory reset (low = reset)
+11    SHCP  Clock pulse
+12    STCP  Latch
+13    OE    Output enable (low = enabled)
+14    DS    Serial input
+15    Q0
+16    VCC

reference/UDN2981A - 8-Channel Source Driver.txt

@@ -0,0 +1,33 @@
+
+   O1   O2   O3   O4   O5   O6   O7   O8  GND
+ __|____|____|____|____|____|____|____|____|__
+|                                             |
+|                                             |
+|\                                            |
+|/                                            |
+|                                             |
+|__ ____ ____ ____ ____ ____ ____ ____ ____ __|
+   |    |    |    |    |    |    |    |    |
+   I1   I2   I3   I4   I5   I6   I7   I8  VCC
+
+
+Pin   Assignment
+
+1     I1
+2     I2
+3     I3
+4     I4
+5     I5
+6     I6
+7     I7
+8     I8
+9     VCC
+10    GND   Ground
+11    O8
+12    O7
+13    O6
+14    O5
+15    O4
+16    O3
+17    O2
+18    O1

reference/ULN2803 - Darlington Transistor Array.txt

@@ -0,0 +1,33 @@
+
+   C1   C2   C3   C4   C5   C6   C7   C8  COM
+ __|____|____|____|____|____|____|____|____|__
+|                                             |
+|                                             |
+|\                                            |
+|/                                            |
+|                                             |
+|__ ____ ____ ____ ____ ____ ____ ____ ____ __|
+   |    |    |    |    |    |    |    |    |
+   B1   B2   B3   B4   B5   B6   B7   Q8  GND
+
+
+Pin   Assignment
+
+1     B1  Base 1
+2     B2  Base 2
+3     B3  Base 3
+4     B4  Base 4
+5     B5  Base 5
+6     B6  Base 6
+7     B7  Base 7
+8     B8  Base 8
+9     GND Ground
+10    COM Common cathode (for flyback diodes)
+11    C8  Collector 8
+12    C7  Collector 7
+13    C6  Collector 6
+14    C5  Collector 5
+15    C4  Collector 4
+16    C3  Collector 3
+17    C2  Collector 2
+18    C1  Collector 1

reset/NerfStatTrakReset.ino

@@ -0,0 +1,51 @@
+#include "EEPROM.h"
+
+/*
+
+  How the EEPROM is used:
+
+
+  First byte: shot counter offset
+  Second byte: hit counter offset
+
+  Each counter is a 32-bit unsigned integer (4 bytes). When it reaches a treshold
+  which is < 100,000 (the recommended EEPROM cell write limit) a new offset is calculated.
+  This way we ensure no cell is written over 100,000 times (assuming the EEPROM is
+  new) and you can click away until you run out of EEPROM.
+
+
+  For initialisation set ShotCounterOffset and HitCounterOffset to
+  different values. Keep in mind that Offset * 4 must not be greater than
+  the amount of available EEPROM!
+
+  Shot/HitCounterInitial defines the default value to write for
+  each counters.
+
+*/
+#define ShotCounterOffset 0
+#define HitCounterOffset 1
+
+#define ShotCounterInitial 0
+#define HitCounterInitial 0
+
+#define counterLocation(offset) 2 + (offset * sizeof(uint32_t))
+
+void setup()
+{
+  EEPROM.update(0, ShotCounterOffset);
+  EEPROM.update(1, HitCounterOffset);
+
+  EEPROM.put(counterLocation(ShotCounterOffset), (uint32_t)ShotCounterInitial);
+  EEPROM.put(counterLocation(HitCounterOffset), (uint32_t)HitCounterInitial);
+
+  pinMode(LED_BUILTIN, OUTPUT);
+}
+
+
+void loop()
+{
+  digitalWrite(LED_BUILTIN, HIGH);
+  delay(1000);
+  digitalWrite(LED_BUILTIN, LOW);
+  delay(1000);
+}