Implemented on / off button
Implemented add / subtract buttons in counter
This commit is contained in:
parent
b54bb32e81
commit
12d45b8760
@ -1,210 +1,59 @@
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#include <stdint.h>
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#include <stdlib.h>
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#include <avr/io.h>
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#include <util/delay.h>
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#include <ssd1306xled.h>
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#include "shared.h"
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#include "power.h"
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#include "buttons.h"
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#include "screen/counter.h"
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#define VccOffTreshold 3000
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#define VccOnTreshold 3100
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// Forward declarations
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void checkPower();
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void waitForInput();
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uint8_t handleGlobalInput();
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void handleCurrentScreen();
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uint16_t readVCC();
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int main()
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{
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// Delay is required on power-on for the SSD1306 to initialize,
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_delay_ms(40);
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ssd1306_init();
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buttons_init();
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while (1)
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{
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checkPower();
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if (!handleGlobalInput())
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{
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if (powerState == On)
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{
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handleCurrentScreen();
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}
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}
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}
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return 0;
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}
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void waitForInput()
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uint8_t handleGlobalInput()
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{
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// TODO go to sleep until a button is pressed
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_delay_ms(1000);
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if (button_is_released_short(&buttonOption))
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{
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// Toggle power
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if (powerState == On)
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setPowerState(ManualOff);
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else if (powerState == ManualOff)
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setPowerState(On);
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return 1;
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}
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return 0;
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}
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uint8_t lastButton = 0;
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void handleCurrentScreen()
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{
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ssd1306_setpos(0, 0);
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if (bit_is_set(PINB, BUTTON_DOWN))
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{
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ssd1306_string("released");
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}
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else
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{
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ssd1306_string("pressed ");
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}
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char value[9];
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value[0] = (buttonDown.flags & BSFLastReported) ? '1' : '0';
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value[1] = (buttonDown.flags & BSFPressed) ? '1' : '0';
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value[2] = (buttonDown.flags & BSFRepeated) ? '1' : '0';
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value[3] = (buttonDown.flags & BSFReleased) ? '1' : '0';
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value[4] = (buttonDown.flags & BSFRepeatEnabled) ? '1' : '0';
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value[5] = '\0';
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ssd1306_setpos(0, 1);
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ssd1306_string(&value[0]);
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itoa(buttonDown.debounceTicks, value, 10);
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ssd1306_setpos(0, 2);
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ssd1306_string(&value[0]);
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itoa(buttonDown.repeatTicks, value, 10);
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ssd1306_setpos(0, 3);
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ssd1306_string(&value[0]);
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if (button_is_pressed(&buttonUp))
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{
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ssd1306_setpos(0, 5);
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ssd1306_string("+");
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}
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else if (button_is_released(&buttonUp))
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{
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ssd1306_setpos(0, 5);
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ssd1306_string(" ");
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}
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if (button_is_pressed(&buttonDown))
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{
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ssd1306_setpos(0, 5);
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ssd1306_string("-");
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}
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else if (button_is_released(&buttonDown))
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{
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ssd1306_setpos(0, 5);
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ssd1306_string(" ");
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}
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if (button_is_pressed(&buttonOption))
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{
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ssd1306_setpos(0, 5);
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ssd1306_string("O");
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}
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else if (button_is_released(&buttonOption))
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{
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ssd1306_setpos(0, 5);
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ssd1306_string(" ");
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}
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_delay_ms(10);
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//handleCounterScreen();
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}
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void checkPower()
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{
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vcc = readVCC();
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switch (powerState)
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{
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case On:
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// Turn display off below 3v. It holds up surprisingly well, but at around
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// 1.5v it does corrupt the screen and requires reinitialization when the
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// voltage is turned back up.
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//
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// ...although by then the battery would be damaged, but still, turning off at
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// 3v means we're still in the safe range when we go into battery saving mode
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// and the reinitialization afterwards prevents any issues.
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if (vcc < VccOffTreshold)
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{
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ssd1306_clear();
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powerState = BatteryLow;
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// TODO go into a sleep cycle until the battery is recharged
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_delay_ms(100);
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}
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break;
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case BatteryLow:
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if (vcc > VccOnTreshold)
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{
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// Delay is required on power-on for the SSD1306 to initialize,
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// to be sure we're simply delaying every time it's reinitialized
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_delay_ms(40);
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ssd1306_init();
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ssd1306_clear();
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powerState = On;
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}
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else
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{
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// TODO continue sleep cycle
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_delay_ms(100);
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}
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break;
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case ManualOff:
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// TODO go into sleep mode
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_delay_ms(100);
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break;
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}
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}
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// Source: http://21stdigitalhome.blogspot.nl/2014/10/trinket-attiny85-internal-temperature.html
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//
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// I've tried many versions and none seemed to work with my ATTiny85-20SU's.
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// For example:
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// https://provideyourown.com/2012/secret-arduino-voltmeter-measure-battery-voltage/
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// https://github.com/cano64/ArduinoSystemStatus/blob/master/SystemStatus.cpp
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// http://www.avrfreaks.net/forum/attiny-adc-using-internal-ref-measure-vcc-problem
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//
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// The key for me was in: ADMUX = 0x0c | _BV(REFS2);
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uint16_t readVCC() {
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ADCSRA |= _BV(ADEN);
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// Read 1.1V reference against AVcc
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// set the reference to Vcc and the measurement to the internal 1.1V reference
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/*
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#if defined(__AVR_ATmega32U4__) || defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
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ADMUX = _BV(REFS0) | _BV(MUX4) | _BV(MUX3) | _BV(MUX2) | _BV(MUX1);
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#elif defined (__AVR_ATtiny24__) || defined(__AVR_ATtiny44__) || defined(__AVR_ATtiny84__)
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ADMUX = _BV(MUX5) | _BV(MUX0);
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#elif defined (__AVR_ATtiny25__) || defined(__AVR_ATtiny45__) || defined(__AVR_ATtiny85__)
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ADMUX = _BV(MUX3) | _BV(MUX2);
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#else
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ADMUX = _BV(REFS0) | _BV(MUX3) | _BV(MUX2) | _BV(MUX1);
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#endif
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*/
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ADMUX = 0x0c | _BV(REFS2);
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_delay_ms(100);
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ADCSRA |= _BV(ADSC);
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while (bit_is_set(ADCSRA,ADSC));
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uint16_t result = ADC;
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ADCSRA &= ~(_BV(ADEN));
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return result == 0 ? 0 : 1125300L / result; // Calculate Vcc (in mV); 1125300 = 1.1*1023*1000
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handleCounterScreen();
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}
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147
Source/src/power.c
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147
Source/src/power.c
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@ -0,0 +1,147 @@
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#include "power.h"
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#include <stdint.h>
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#include <avr/io.h>
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#include <util/delay.h>
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#include <ssd1306xled.h>
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#define VccOffTreshold 3000
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#define VccOnTreshold 3100
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#define SSD1306CommandOff 0xAE
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#define SSD1306CommandOn 0xAF
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PowerState powerState = BatteryLow;
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uint16_t vcc = 0;
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uint8_t screenInvalidated = 0;
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// Forward declarations
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uint16_t readVCC();
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void checkPower()
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{
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vcc = readVCC();
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switch (powerState)
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{
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case On:
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// Turn display off below 3v. It holds up surprisingly well, but at around
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// 1.5v it does corrupt the screen and requires reinitialization when the
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// voltage is turned back up.
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//
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// ...although by then the battery would be damaged, but still, turning off at
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// 3v means we're still in the safe range when we go into battery saving mode
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// and the reinitialization afterwards prevents any issues.
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if (vcc < VccOffTreshold)
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{
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setPowerState(BatteryLow);
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// TODO go into a sleep cycle until the battery is recharged
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_delay_ms(10);
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}
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break;
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case BatteryLow:
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if (vcc > VccOnTreshold)
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setPowerState(On);
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else
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{
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// TODO continue sleep cycle
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_delay_ms(10);
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}
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break;
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case ManualOff:
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// TODO go into sleep mode
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_delay_ms(10);
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break;
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}
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}
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void setPowerState(PowerState newState)
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{
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if (newState == powerState) return;
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switch (newState)
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{
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case On:
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ssd1306_send_command(SSD1306CommandOn);
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break;
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case BatteryLow:
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case ManualOff:
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if (powerState == On)
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ssd1306_send_command(SSD1306CommandOff);
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break;
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}
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powerState = newState;
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}
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uint8_t getScreenInvalidated()
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{
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if (screenInvalidated)
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{
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screenInvalidated = 0;
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return 1;
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}
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return 0;
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}
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void setScreenInvalidated()
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{
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screenInvalidated = 1;
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}
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// Source: http://21stdigitalhome.blogspot.nl/2014/10/trinket-attiny85-internal-temperature.html
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//
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// I've tried many versions and none seemed to work with my ATTiny85-20SU's.
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// For example:
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// https://provideyourown.com/2012/secret-arduino-voltmeter-measure-battery-voltage/
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// https://github.com/cano64/ArduinoSystemStatus/blob/master/SystemStatus.cpp
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// http://www.avrfreaks.net/forum/attiny-adc-using-internal-ref-measure-vcc-problem
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//
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// The key for me was in: ADMUX = 0x0c | _BV(REFS2);
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uint16_t readVCC() {
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ADCSRA |= _BV(ADEN);
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// Read 1.1V reference against AVcc
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// set the reference to Vcc and the measurement to the internal 1.1V reference
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/*
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#if defined(__AVR_ATmega32U4__) || defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
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ADMUX = _BV(REFS0) | _BV(MUX4) | _BV(MUX3) | _BV(MUX2) | _BV(MUX1);
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#elif defined (__AVR_ATtiny24__) || defined(__AVR_ATtiny44__) || defined(__AVR_ATtiny84__)
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ADMUX = _BV(MUX5) | _BV(MUX0);
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#elif defined (__AVR_ATtiny25__) || defined(__AVR_ATtiny45__) || defined(__AVR_ATtiny85__)
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ADMUX = _BV(MUX3) | _BV(MUX2);
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#else
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ADMUX = _BV(REFS0) | _BV(MUX3) | _BV(MUX2) | _BV(MUX1);
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#endif
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*/
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ADMUX = 0x0c | _BV(REFS2);
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_delay_ms(100);
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ADCSRA |= _BV(ADSC);
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while (bit_is_set(ADCSRA,ADSC));
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uint16_t result = ADC;
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ADCSRA &= ~(_BV(ADEN));
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return result == 0 ? 0 : 1125300L / result; // Calculate Vcc (in mV); 1125300 = 1.1*1023*1000
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}
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19
Source/src/power.h
Normal file
19
Source/src/power.h
Normal file
@ -0,0 +1,19 @@
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#ifndef __Power
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#define __Power
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#include <stdint.h>
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typedef enum { On, ManualOff, BatteryLow } PowerState;
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extern PowerState powerState;
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extern uint16_t vcc;
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extern void checkPower();
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extern void setPowerState(PowerState newState);
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extern uint8_t getScreenInvalidated();
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extern void setScreenInvalidated();
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#endif
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@ -1,11 +1,37 @@
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#include "counter.h"
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#include <stdint.h>
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#include <ssd1306xled.h>
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#include "../buttons.h"
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uint16_t lastDrawnCounter = 9999;
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uint16_t counter = 0;
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// Forward declarations
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void drawCounter(uint16_t value);
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void drawDigit(uint8_t* column, uint8_t digit);
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void blankDigitColumn(uint8_t* column, uint8_t width);
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void handleCounterScreen()
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{
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if (button_is_pressed_or_repeated(&buttonUp))
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{
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if (counter < 999)
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counter++;
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}
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else if (button_is_pressed_or_repeated(&buttonDown))
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{
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if (counter > 0)
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counter--;
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}
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if (counter != lastDrawnCounter || getScreenInvalidated())
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{
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drawCounter(counter);
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lastDrawnCounter = counter;
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}
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}
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@ -2,7 +2,6 @@
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#define __ScreenCounter
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#include <stdint.h>
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#include "shared.h"
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#include "digits.h"
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@ -31,9 +30,6 @@
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extern void handleCounterScreen();
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extern void drawCounter(uint16_t value);
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extern void drawDigit(uint8_t* column, uint8_t digit);
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extern void blankDigitColumn(uint8_t* column, uint8_t width);
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#endif
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@ -1,5 +0,0 @@
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#include "shared.h"
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PowerState powerState = BatteryLow;
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uint16_t vcc = 0;
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uint16_t counter = 0;
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@ -1,13 +0,0 @@
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#ifndef __Shared
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#define __Shared
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#include <stdint.h>
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typedef enum { On, ManualOff, BatteryLow } PowerState;
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extern PowerState powerState;
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extern uint16_t vcc;
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extern uint16_t counter;
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#endif
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