arduino/rc-gateway
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use common libraries

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This commit is contained in:
Nicu Hodos 2017-01-29 14:26:49 +01:00
parent 72842a4b60
commit 0d8df19c70
1 changed files with 11 additions and 83 deletions
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94
water_sensor/water_sensor.ino
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@ -1,12 +1,5 @@
#include <RCSwitch.h>
#include <avr/sleep.h>
#include <avr/power.h>
#include <avr/wdt.h>
// Utility macros
#define adc_disable() (ADCSRA &= ~_BV(ADEN)) // disable ADC (before power-off)
#define adc_enable() (ADCSRA |= _BV(ADEN)) // re-enable ADC
#define enable_pin_interrupts() (GIMSK |= _BV(PCIE)) // Enable Pin Change Interrupts
#include <TinyPower.h>
#include <TinySensor.h>
// Pins
#define SWITCH 0
@ -15,7 +8,7 @@
#define SENSOR_ID 3
RCSwitch mySwitch = RCSwitch();
TinySensor sensor = TinySensor(SENSOR_ID, SENDER);
int counter = 0;
@ -25,19 +18,14 @@ void setup() {
pinMode(CONTROLLER, OUTPUT);
digitalWrite(CONTROLLER, HIGH);
mySwitch.enableTransmit(SENDER);
mySwitch.setProtocol(2);
sendWindowState();
set_sleep_mode(SLEEP_MODE_PWR_DOWN);
enable_pin_interrupts();
enableWdt();
sensor.setup();
sensor.sendWindowState(readState());
TinyPower::setup();
}
void loop() {
sleep();
TinyPower::sleep();
}
bool readState() {
@ -47,78 +35,18 @@ bool readState() {
return state;
}
void sendWindowState() {
unsigned long value = 0x70000000;
value |= readVcc() << 6;
value |= !readState() << 5;
value |= SENSOR_ID;
mySwitch.send(value, 32);
}
void sleep() {
PCMSK |= _BV(PCINT0); // Use PB0 as interrupt pin
adc_disable();
sleep_enable(); // Sets the Sleep Enable bit in the MCUCR Register (SE BIT)
sei(); // Enable interrupts
sleep_cpu(); // sleep
cli(); // Disable interrupts
PCMSK &= ~_BV(PCINT0); // Turn off PB0 as interrupt pin
sleep_disable(); // Clear SE bit
adc_enable();
sei(); // Enable interrupts
}
ISR(PCINT0_vect) {
sendWindowState();
sensor.sendWindowState(readState());
delay(5000);
sendWindowState();
sensor.sendWindowState(readState());
}
ISR(WDT_vect) {
counter++;
if (counter % 220 == 0) {
counter = 0;
sendWindowState();
sensor.sendWindowState(readState());
delay(10000);
sendWindowState();
sensor.sendWindowState(readState());
}
}
//enable the wdt for 8sec interrupt
void enableWdt()
{
MCUSR = 0x00;
WDTCR |= _BV(WDCE) | _BV(WDE);
WDTCR = _BV(WDIE) | _BV(WDP3) | _BV(WDP0); //8192ms
}
long readVcc() {
// Read 1.1V reference against AVcc
// set the reference to Vcc and the measurement to the internal 1.1V reference
#if defined(__AVR_ATmega32U4__) || defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
ADMUX = _BV(REFS0) | _BV(MUX4) | _BV(MUX3) | _BV(MUX2) | _BV(MUX1);
#elif defined (__AVR_ATtiny24__) || defined(__AVR_ATtiny44__) || defined(__AVR_ATtiny84__)
ADMUX = _BV(MUX5) | _BV(MUX0);
#elif defined (__AVR_ATtiny25__) || defined(__AVR_ATtiny45__) || defined(__AVR_ATtiny85__)
ADMUX = _BV(MUX3) | _BV(MUX2);
#else
ADMUX = _BV(REFS0) | _BV(MUX3) | _BV(MUX2) | _BV(MUX1);
#endif
delay(2); // Wait for Vref to settle
ADCSRA |= _BV(ADSC); // Start conversion
while (bit_is_set(ADCSRA,ADSC)); // measuring
uint8_t low = ADCL; // must read ADCL first - it then locks ADCH
uint8_t high = ADCH; // unlocks both
long result = (high<<8) | low;
result = 1125300L / result; // Calculate Vcc (in mV); 1125300 = 1.1*1023*1000
return result; // Vcc in millivolts
}