Fixed countdown timer

Added sound settings
Changed edit arrows to indicate for min/max values

src/Buzzer.cpp

@@ -1,6 +1,7 @@
 #include "buzzer.h"
 #include <Arduino.h>
 #include "config.h"
+#include "state.h"
 
 
 void Buzzer::playNote(uint16_t frequency, uint16_t duration)
@@ -13,28 +14,34 @@ void Buzzer::playNote(uint16_t frequency, uint16_t duration)
 
 void Buzzer::startup()
 {
-  playNote(1000, 50);
+  if (GetBuzzer() == BuzzerSetting::CompletedButtonStartup)
+    playNote(1000, 50);
 }
 
 
 void Buzzer::select()
 {
-  playNote(1000, 1);
+  if (GetBuzzer() <= BuzzerSetting::CompletedButton)
+    playNote(1000, 1);
 }
 
 
 void Buzzer::click()
 {
-  playNote(1000, 25);
+  if (GetBuzzer() <= BuzzerSetting::CompletedButton)
+    playNote(1000, 25);
 }
 
 
 void Buzzer::completed()
 {
-  for (int i = 0; i < 3; i++)
+  if (GetBuzzer() <= BuzzerSetting::Completed)
   {
-    playNote(1000, 250);
-    delay(500);
+    for (int i = 0; i < 3; i++)
+    {
+      playNote(1000, 250);
+      delay(500);
+    }
   }
 }
 

src/Config.cpp

@@ -49,3 +49,23 @@ uint8_t LCDCharUpDownMap[8] = {
   B00100,
   B00000,
 };
+
+uint8_t LCDCharUpMap[8] = {
+  B00000,
+  B00100,
+  B01110,
+  B00000,
+  B00000,
+  B00000,
+  B00000,
+};
+
+uint8_t LCDCharDownMap[8] = {
+  B00000,
+  B00000,
+  B00000,
+  B00000,
+  B01110,
+  B00100,
+  B00000,
+};

src/Config.h

@@ -15,6 +15,7 @@ const uint8_t PinButton = 4;
 const uint8_t PinBuzzer = 5;
 const uint8_t PinLED = 6;
 
+// Note: an LCD size of at least 16x2 is assumed for all text to fit
 const uint8_t LCDWidth = 16;
 const uint8_t LCDHeight = 2;
 
@@ -22,7 +23,7 @@ const uint8_t EncoderSensitivity = 4;
 const uint8_t SmallStep = 1;
 const uint8_t LargeStepTreshold = 60;
 const uint8_t LargeStep = 10;
-const uint8_t IntensityStep = 1;
+const uint8_t IntensityStep = 5;
 
 
 const uint32_t DefaultExposureTime = 60;
@@ -33,11 +34,15 @@ const uint8_t LCDCharArrowLeft = 1;
 const uint8_t LCDCharArrowRightHollow = 2;
 const uint8_t LCDCharArrowLeftHollow = 3;
 const uint8_t LCDCharUpDown = 4;
+const uint8_t LCDCharUp = 5;
+const uint8_t LCDCharDown = 6;
 
 extern uint8_t LCDCharArrowRightMap[8];
 extern uint8_t LCDCharArrowLeftMap[8];
 extern uint8_t LCDCharArrowRightHollowMap[8];
 extern uint8_t LCDCharArrowLeftHollowMap[8];
 extern uint8_t LCDCharUpDownMap[8];
+extern uint8_t LCDCharUpMap[8];
+extern uint8_t LCDCharDownMap[8];
 
 #endif

src/main.cpp

@@ -18,7 +18,7 @@ LiquidCrystal lcd(PinLCDRS, PinLCDEN, PinLCDDB4, PinLCDDB5, PinLCDDB6, PinLCDDB7
 #ifndef ResetEEPROM
 
 ScreenManager* screenManager;
-unsigned long currentTime;
+uint32_t currentTime;
 
 Encoder encoder(PinEncoderData, PinEncoderClock);
 Bounce button = Bounce();
@@ -41,6 +41,8 @@ void setup()
   lcd.createChar(LCDCharArrowRightHollow, LCDCharArrowRightHollowMap);
   lcd.createChar(LCDCharArrowLeftHollow, LCDCharArrowLeftHollowMap);
   lcd.createChar(LCDCharUpDown, LCDCharUpDownMap);
+  lcd.createChar(LCDCharUp, LCDCharUpMap);
+  lcd.createChar(LCDCharDown, LCDCharDownMap);
   lcd.begin(LCDWidth, LCDHeight);
 
   screenManager = new ScreenManager(&lcd, &currentTime);
@@ -50,7 +52,7 @@ void setup()
 }
 
 
-long lastPosition = 0;
+int32_t lastPosition = 0;
 bool isPressed = false;
 
 
@@ -59,7 +61,7 @@ void loop()
   currentTime = millis();
   button.update();
 
-  long newPosition = encoder.read();
+  int32_t newPosition = encoder.read();
   if (abs(newPosition - lastPosition) >= EncoderSensitivity)
   {
     screenManager->getCurrent()->onEncoder(lastPosition, newPosition);
@@ -82,18 +84,21 @@ void loop()
 
 #else
 
+#include <EEPROM.h>
+
 void setup()
 {
   pinMode(PinBuzzer, OUTPUT);
   lcd.begin(LCDWidth, LCDHeight);
 
-  for (int i = 0 ; i < EEPROM.length() ; i++)
+  for (uint16_t i = 0 ; i < EEPROM.length() ; i++)
   {
     EEPROM.update(i, 0);
   }
 
-  ExposureTime = DefaultExposureTime;
-  ExposureIntensity = DefaultExposureIntensity;
+  SetExposureTime(DefaultExposureTime);
+  SetExposureIntensity(DefaultExposureIntensity);
+  SetBuzzer(BuzzerSetting::CompletedButtonStartup);
   SaveSettings();
 
   lcd.setCursor(0, 0);

src/menu/intensity.cpp

@@ -17,25 +17,25 @@ const char* IntensityMenuItem::getValue()
 }
 
 
-void IntensityMenuItem::incValue()
+bool IntensityMenuItem::canIncrement()
 {
-  uint16_t exposureIntensity = GetExposureIntensity();
-
-  if (exposureIntensity < 100)
-  {
-    SetExposureIntensity(exposureIntensity + IntensityStep);
-    Buzzer::select();
-  }
+  return GetExposureIntensity() < 100;
 }
 
 
-void IntensityMenuItem::decValue()
+bool IntensityMenuItem::canDecrement()
 {
-  uint16_t exposureIntensity = GetExposureIntensity();
+  return GetExposureIntensity() > IntensityStep;
+}
 
-  if (exposureIntensity > IntensityStep)
-  {
-    SetExposureIntensity(exposureIntensity - IntensityStep);
-    Buzzer::select();
-  }
+
+void IntensityMenuItem::incrementValue()
+{
+  SetExposureIntensity(GetExposureIntensity() + IntensityStep);
+}
+
+
+void IntensityMenuItem::decrementValue()
+{
+  SetExposureIntensity(GetExposureIntensity() - IntensityStep);
 }

src/menu/intensity.h

@@ -13,8 +13,10 @@ class IntensityMenuItem : public MenuItem
 
     bool editable() { return true; }
 
-    void incValue();
-    void decValue();
+    bool canIncrement();
+    bool canDecrement();
+    void incrementValue();
+    void decrementValue();
 };
 
 #endif

src/menu/sound.cpp

@@ -0,0 +1,56 @@
+#include "sound.h"
+#include "config.h"
+#include "state.h"
+#include "display.h"
+#include "buzzer.h"
+
+
+const char* SoundMenuItem::getTitle()
+{
+  return UniqueString("Sound");
+}
+
+
+const char* SoundMenuItem::getValue()
+{
+  switch (GetBuzzer())
+  {
+    case BuzzerSetting::CompletedButtonStartup:
+      return UniqueString("All");
+
+    case BuzzerSetting::CompletedButton:
+      return UniqueString("Alarm/button");
+
+    case BuzzerSetting::Completed:
+      return UniqueString("Alarm only");
+
+    case BuzzerSetting::None:
+      return UniqueString("None");
+  }
+
+  return NULL;
+}
+
+
+bool SoundMenuItem::canIncrement()
+{
+  return GetBuzzer() > BuzzerSetting::First;
+}
+
+
+bool SoundMenuItem::canDecrement()
+{
+  return GetBuzzer() < BuzzerSetting::Last;
+}
+
+
+void SoundMenuItem::incrementValue()
+{
+  SetBuzzer((BuzzerSetting)((uint8_t)GetBuzzer() - 1));
+}
+
+
+void SoundMenuItem::decrementValue()
+{
+  SetBuzzer((BuzzerSetting)((uint8_t)GetBuzzer() + 1));
+}

src/menu/sound.h

@@ -0,0 +1,22 @@
+#ifndef __soundmenuitem
+#define __soundmenuitem
+
+#include "screen/menu.h"
+
+class SoundMenuItem : public MenuItem
+{
+  public:
+    SoundMenuItem() : MenuItem() { }
+
+    const char* getTitle();
+    const char* getValue();
+
+    bool editable() { return true; }
+
+    bool canIncrement();
+    bool canDecrement();
+    void incrementValue();
+    void decrementValue();
+};
+
+#endif

src/menu/start.cpp

@@ -35,7 +35,8 @@ const char* StartMenuItem::getValue()
 }
 
 
-void StartMenuItem::execute(ScreenManager* screenManager)
+void StartMenuItem::execute(ScreenManager* screenManager, uint32_t currentTime)
 {
+  StartExposureTimer(currentTime);
   screenManager->show<CountdownScreen>();
 }

src/menu/start.h

@@ -13,7 +13,7 @@ class StartMenuItem : public MenuItem
 
     bool editable() { return false; }
 
-    void execute(ScreenManager* screenManager);
+    void execute(ScreenManager* screenManager, uint32_t currentTime);
 };
 
 #endif

src/menu/time.cpp

@@ -16,25 +16,27 @@ const char* TimeMenuItem::getValue()
 }
 
 
-void TimeMenuItem::incValue()
+bool TimeMenuItem::canIncrement()
 {
-  uint16_t exposureTime = GetExposureTime();
-
-  if (exposureTime < (uint16_t)-1)
-  {
-    SetExposureTime(exposureTime + (exposureTime >= LargeStepTreshold ? LargeStep : SmallStep));
-    Buzzer::select();
-  }
+  return GetExposureTime() < (uint16_t)-1;
 }
 
 
-void TimeMenuItem::decValue()
+bool TimeMenuItem::canDecrement()
+{
+  return GetExposureTime() > SmallStep;
+}
+
+
+void TimeMenuItem::incrementValue()
 {
   uint16_t exposureTime = GetExposureTime();
+  SetExposureTime(exposureTime + (exposureTime >= LargeStepTreshold ? LargeStep : SmallStep));
+}
 
-  if (exposureTime > SmallStep)
-  {
-    SetExposureTime(exposureTime - (exposureTime > LargeStepTreshold ? LargeStep : SmallStep));
-    Buzzer::select();
-  }
+
+void TimeMenuItem::decrementValue()
+{
+  uint16_t exposureTime = GetExposureTime();
+  SetExposureTime(exposureTime - (exposureTime > LargeStepTreshold ? LargeStep : SmallStep));
 }

src/menu/time.h

@@ -13,8 +13,10 @@ class TimeMenuItem : public MenuItem
 
     bool editable() { return true; }
 
-    void incValue();
-    void decValue();
+    bool canIncrement();
+    bool canDecrement();
+    void incrementValue();
+    void decrementValue();
 };
 
 #endif

src/screen.cpp

@@ -7,7 +7,7 @@ ScreenManager* BaseScreen::getScreenManager()
   return mScreenManager;
 }
 
-unsigned long BaseScreen::getCurrentTime()
+uint32_t BaseScreen::getCurrentTime()
 {
   return mScreenManager->getCurrentTime();
 }

src/screen.h

@@ -13,7 +13,7 @@ class BaseScreen
 
   protected:
     ScreenManager* getScreenManager();
-    unsigned long getCurrentTime();
+    uint32_t getCurrentTime();
     LiquidCrystal* getDisplay();
 
   public:
@@ -28,7 +28,7 @@ class BaseScreen
     virtual void onHide() = 0;
 
     virtual void onButton() = 0;
-    virtual void onEncoder(long lastPosition, long newPosition) = 0;
+    virtual void onEncoder(int32_t lastPosition, int32_t newPosition) = 0;
     virtual void onTick() = 0;
 };
 
@@ -38,12 +38,12 @@ class ScreenManager
 {
   private:
     LiquidCrystal* mDisplay;
-    unsigned long* mCurrentTime;
+    uint32_t* mCurrentTime;
 
     BaseScreen* mCurrent = NULL;
 
   public:
-    ScreenManager(LiquidCrystal* display, unsigned long* currentTime)
+    ScreenManager(LiquidCrystal* display, uint32_t* currentTime)
     {
       mDisplay = display;
       mCurrentTime = currentTime;
@@ -56,7 +56,7 @@ class ScreenManager
     }
 
 
-    inline unsigned long getCurrentTime()
+    inline uint32_t getCurrentTime()
     {
       return *mCurrentTime;
     }

src/screen/countdown.cpp

@@ -6,6 +6,12 @@
 #include "buzzer.h"
 
 
+inline uint32_t intDivCeil(uint32_t x, uint32_t y)
+{
+  return x / y + (x % y != 0);
+}
+
+
 void CountdownScreen::printRemainingTime()
 {
   LCDPrintLineCentered(getDisplay(), 1, FormatTime(mLastDisplayed));
@@ -16,10 +22,12 @@ void CountdownScreen::onShow()
 {
   LCDPrintLineCentered(getDisplay(), 0, "Exposing...");
 
-  mLastDisplayed = GetExposureTimeRemaining(getCurrentTime()) / 1000;
+  uint32_t remaining = GetExposureTimeRemaining(getCurrentTime());
+  mLastDisplayed = intDivCeil(remaining, 1000);
+
   printRemainingTime();
 
-  digitalWrite(PinLED, HIGH);
+  analogWrite(PinLED, map(GetExposureIntensity(), 0, 100, 0, 255));
 }
 
 
@@ -37,7 +45,7 @@ void CountdownScreen::onButton()
 }
 
 
-void CountdownScreen::onEncoder(long lastPosition, long newPosition)
+void CountdownScreen::onEncoder(int32_t lastPosition, int32_t newPosition)
 {
   // TODO Allow adding / removing time?
 }
@@ -45,13 +53,14 @@ void CountdownScreen::onEncoder(long lastPosition, long newPosition)
 
 void CountdownScreen::onTick()
 {
-  uint32_t remaining = GetExposureTimeRemaining(getCurrentTime()) / 1000;
+  uint32_t remaining = GetExposureTimeRemaining(getCurrentTime());
+  remaining = intDivCeil(remaining, 1000);
 
   if (remaining == 0)
   {
     mLastDisplayed = 0;
 
-    LCDPrintLine(getDisplay(), 0, "Done!");
+    LCDPrintLineCentered(getDisplay(), 0, "Done!");
     printRemainingTime();
     digitalWrite(PinLED, LOW);
 

src/screen/countdown.h

@@ -22,7 +22,7 @@ class CountdownScreen : public BaseScreen
     void onHide();
 
     void onButton();
-    void onEncoder(long lastPosition, long newPosition);
+    void onEncoder(int32_t lastPosition, int32_t newPosition);
     void onTick();
 };
 

src/screen/menu.cpp

@@ -2,20 +2,23 @@
 #include "config.h"
 #include "buzzer.h"
 #include "display.h"
+#include "state.h"
 
 #include "menu/start.h"
 #include "menu/time.h"
 #include "menu/intensity.h"
+#include "menu/sound.h"
 
 
 MenuScreen::MenuScreen(ScreenManager* screenManager) : BaseScreen(screenManager)
 {
-  mCount = 3;
+  mCount = 4;
   mItems = new MenuItem*[mCount];
 
   mItems[0] = new StartMenuItem();
   mItems[1] = new TimeMenuItem();
   mItems[2] = new IntensityMenuItem();
+  mItems[3] = new SoundMenuItem();
 }
 
 
@@ -90,7 +93,19 @@ void MenuScreen::printValue()
     editingValue[1] = ' ';
     strcpy(editingValue + 2, value);
     editingValue[valueLength + 2] = ' ';
-    editingValue[valueLength + 3] = LCDCharUpDown;
+
+    bool canIncrement = mItems[mSelected]->canIncrement();
+    bool canDecrement = mItems[mSelected]->canDecrement();
+
+    if (canIncrement && canDecrement)
+      editingValue[valueLength + 3] = LCDCharUpDown;
+    else if (canIncrement)
+      editingValue[valueLength + 3] = LCDCharUp;
+    else if (canDecrement)
+      editingValue[valueLength + 3] = LCDCharDown;
+    else
+      editingValue[valueLength + 3] = ' ';
+
     editingValue[valueLength + 4] = 0;
 
     LCDPrintLineCentered(display, 1, editingValue);
@@ -110,25 +125,42 @@ void MenuScreen::onButton()
 {
   if (mItems[mSelected]->editable())
   {
+    Buzzer::select();
+
+    if (mEditing)
+      SaveSettings();
+
     mEditing = !mEditing;
     printScrollIndicators();
     printValue();
   }
   else
   {
-    mItems[mSelected]->execute(getScreenManager());
+    mItems[mSelected]->execute(getScreenManager(), getCurrentTime());
   }
 }
 
 
-void MenuScreen::onEncoder(long lastPosition, long newPosition)
+void MenuScreen::onEncoder(int32_t lastPosition, int32_t newPosition)
 {
   if (mEditing)
   {
     if (newPosition > lastPosition)
-      mItems[mSelected]->incValue();
+    {
+      if (mItems[mSelected]->canIncrement())
+      {
+        mItems[mSelected]->incrementValue();
+        Buzzer::select();
+      }
+    }
     else
-      mItems[mSelected]->decValue();
+    {
+      if (mItems[mSelected]->canDecrement())
+      {
+        mItems[mSelected]->decrementValue();
+        Buzzer::select();
+      }
+    }
 
     printValue();
   }

src/screen/menu.h

@@ -14,11 +14,13 @@ class MenuItem
     virtual bool editable() { return false; }
 
     // Editable = true
-    virtual void incValue() { }
-    virtual void decValue() { }
+    virtual bool canIncrement() { return true; }
+    virtual bool canDecrement() { return true; }
+    virtual void incrementValue() { }
+    virtual void decrementValue() { }
 
     // Editable = false
-    virtual void execute(ScreenManager* screenManager) { }
+    virtual void execute(ScreenManager* screenManager, uint32_t currentTime) { }
 };
 
 class MenuScreen : public BaseScreen
@@ -44,7 +46,7 @@ class MenuScreen : public BaseScreen
     void onHide();
 
     void onButton();
-    void onEncoder(long lastPosition, long newPosition);
+    void onEncoder(int32_t lastPosition, int32_t newPosition);
     void onTick();
 };
 

src/state.cpp

@@ -5,6 +5,7 @@
 uint16_t ExposureTime = DefaultExposureTime;
 uint8_t ExposureIntensity = DefaultExposureIntensity;
 uint32_t ExposureTimerStart = 0;
+BuzzerSetting Buzzer = BuzzerSetting::CompletedButtonStartup;
 
 
 uint16_t GetExposureTime()
@@ -39,6 +40,18 @@ void SetExposureIntensity(uint8_t value)
 }
 
 
+BuzzerSetting GetBuzzer()
+{
+  return Buzzer;
+}
+
+
+void SetBuzzer(BuzzerSetting value)
+{
+  Buzzer = value;
+}
+
+
 void LoadSettings()
 {
   uint16_t offset = 0;
@@ -49,6 +62,12 @@ void LoadSettings()
 
   EEPROM.get(offset, ExposureIntensity);
   SetExposureIntensity(ExposureIntensity);
+
+  offset += sizeof(ExposureIntensity);
+
+  EEPROM.get(offset, Buzzer);
+  if (Buzzer < BuzzerSetting::First || Buzzer > BuzzerSetting::Last)
+    Buzzer = BuzzerSetting::CompletedButtonStartup;
 }
 
 
@@ -59,12 +78,14 @@ void SaveSettings()
   offset += sizeof(ExposureTime);
 
   EEPROM.put(offset, ExposureIntensity);
+  offset += sizeof(ExposureIntensity);
+
+  EEPROM.put(offset, (uint8_t)Buzzer);
 }
 
 
 void StartExposureTimer(uint32_t currentTime)
 {
-  SaveSettings();
   ExposureTimerStart = currentTime;
 }
 
@@ -78,5 +99,7 @@ void ResetExposureTimer()
 uint16_t GetExposureTimeRemaining(uint32_t currentTime)
 {
   uint32_t elapsed = (currentTime - ExposureTimerStart);
-  return elapsed <= ExposureTime ? ExposureTime - elapsed : 0;
+  uint32_t exposureTimeMs = ExposureTime * 1000;
+
+  return elapsed <= exposureTimeMs ? exposureTimeMs - elapsed : 0;
 }

src/state.h

@@ -3,12 +3,26 @@
 
 #include <Arduino.h>
 
+enum BuzzerSetting
+{
+  CompletedButtonStartup = 0,
+  CompletedButton = 1,
+  Completed = 2,
+  None = 3,
+
+  First = CompletedButtonStartup,
+  Last = None
+};
+
 uint16_t GetExposureTime();
 void SetExposureTime(uint16_t value);
 
 uint8_t GetExposureIntensity();
 void SetExposureIntensity(uint8_t value);
 
+BuzzerSetting GetBuzzer();
+void SetBuzzer(BuzzerSetting value);
+
 
 void LoadSettings();
 void SaveSettings();