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c_cpp
a year ago
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#include <Wire.h> #include <SoftwareSerial.h> #include "LowPower.h" const byte rtcPin = 19; //interrupt from RTC int rpm = 0; void pin19Interrupt(void) { rpm++; } void setup() { Serial.begin(9600); pinMode(rPin, INPUT); pinMode(wPin, INPUT); pinMode(rtcPin, INPUT); } void loop() { Serial.println("Entering sleep mode"); attachInterrupt(RTCINT, pin19Interrupt, FALLING); //rtc LowPower.powerDown(SLEEP_FOREVER, ADC_OFF, BOD_OFF); delay(1); }