An arduino library to communicate using the Dallas one-wire protocol, where the Arduino takes the role of a slave.
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#include "Arduino.h"
#include "SerialChannel.h"
#define LEDPin 13
#define OWPin 2
#define InterruptNumber 0 // Must correspond to the OWPin to correctly detect state changes. On Arduino Uno, interrupt 0 is for digital pin 2
SerialChannel debug("debug");
void setup()
{
pinMode(LEDPin, OUTPUT);
pinMode(OWPin, INPUT);
digitalWrite(LEDPin, LOW);
attachInterrupt(InterruptNumber,onewireInterrupt,CHANGE);
Serial.begin(400000);
}
void loop()
{
cli();//disable interrupts
sei();//enable interrupts
}
void onewireInterrupt(void)
{
digitalWrite(LEDPin, digitalRead(OWPin));
}