140 lines
2.7 KiB
C++
140 lines
2.7 KiB
C++
#include <avr/sleep.h>
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#include <avr/power.h>
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#include <avr/wdt.h>
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#include <RCSwitch.h>
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#include <SoftwareSerial_Tiny.h>
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#define DEBUG 1
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#define RC_SWITCH 0
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// Utility macros
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#define adc_disable() (ADCSRA &= ~_BV(ADEN)) // disable ADC (before power-off)
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#define adc_enable() (ADCSRA |= _BV(ADEN)) // re-enable ADC
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#define enable_pin_interrupts() (GIMSK |= _BV(PCIE)) // Enable Pin Change Interrupts
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// Pins
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#define SWITCH 0
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#if DEBUG
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#define RxD 0
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#define TxD 4
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SoftwareSerial AttinySerial(RxD,TxD);
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#endif
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#if RC_SWITCH
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#define SENDER 2
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RCSwitch mySwitch = RCSwitch();
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#endif
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void sleep();
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void enableWdt();
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void disableWdt();
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void debug(const char* msg);
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char* group = "11111";
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int number = 4;
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bool stateOn = false;
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bool timerTriggered = false;
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void setup() {
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#if DEBUG
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AttinySerial.begin(9600);
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#endif
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#if RC_SWITCH
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pinMode(SWITCH, INPUT_PULLUP);
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mySwitch.enableTransmit(SENDER);
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mySwitch.setProtocol(1);
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#endif
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set_sleep_mode(SLEEP_MODE_PWR_DOWN);
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enable_pin_interrupts();
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}
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void loop() {
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debug("loop");
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sleep();
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}
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void sendCommand(boolean on) {
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if (on) {
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#if RC_SWITCH
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mySwitch.switchOn((char*)"11111", 4);
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#endif
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debug("switch on");
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} else {
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#if RC_SWITCH
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mySwitch.switchOff((char*)"11111", 4);
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#endif
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debug("switch off");
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}
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}
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ISR(PCINT0_vect) {
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byte state = digitalRead(SWITCH);
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if (state == LOW) {
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debug("state is low");
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enableWdt();
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} else {
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debug("state is high");
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disableWdt();
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if (!timerTriggered) {
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sendCommand(true);
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}
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}
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timerTriggered = false;
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}
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ISR(WDT_vect) {
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timerTriggered = true;
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debug("wdt");
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byte state = digitalRead(SWITCH);
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if (state == LOW) {
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sendCommand(false);
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} else {
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sendCommand(true);
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}
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disableWdt();
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}
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void sleep() {
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PCMSK |= _BV(PCINT0); // Use PB0 as interrupt pin
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adc_disable();
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sleep_enable(); // Sets the Sleep Enable bit in the MCUCR Register (SE BIT)
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sleep_bod_disable();
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sei(); // Enable interrupts
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sleep_cpu(); // sleep
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sleep_disable(); // Clear SE bit
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cli(); // Disable interrupts
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PCMSK &= ~_BV(PCINT0); // Turn off PB0 as interrupt pin
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adc_enable();
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sei(); // Enable interrupts
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}
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//enable the wdt for 1 sec interrupt
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inline void enableWdt() {
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wdt_reset();
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MCUSR = 0x00;
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WDTCR |= _BV(WDCE) | _BV(WDE);
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WDTCR = _BV(WDIE) | _BV(WDP2) | _BV(WDP1);
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}
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inline void disableWdt() {
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MCUSR = 0x00;
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WDTCR |= _BV(WDCE) | _BV(WDE);
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WDTCR = 0x00;
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}
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void debug(const char* msg) {
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#if DEBUG
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AttinySerial.println(msg);
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#endif
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}
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