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 "LowLevel.h"
#include "SerialChannel.h"
#include "OneWireSlave.h"
#define LEDPin 13
#define OWPin 2
#ifdef ENABLE_SERIAL_CHANNEL
SerialChannel debug("debug");
#endif
Pin led(LEDPin);
byte owROM[7] = { 0xE2, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02 };
byte acknowledge = 0x42;
void owReceive(OneWireSlave::ReceiveEvent evt, byte data);
void setup()
{
led.outputMode();
led.writeLow();
OneWire.setReceiveCallback(&owReceive);
OneWire.begin(owROM, OWPin);
Serial.begin(9600);
}
void loop()
{
10 years ago
delay(1);
cli();//disable interrupts
#ifdef ENABLE_SERIAL_CHANNEL
SerialChannel::swap();
#endif
sei();//enable interrupts
#ifdef ENABLE_SERIAL_CHANNEL
SerialChannel::flush();
#endif
}
void owReceive(OneWireSlave::ReceiveEvent evt, byte data)
{
switch (evt)
{
case OneWireSlave::RE_Byte:
if (data == 0x01)
led.writeHigh();
else if (data == 0x02)
led.writeLow();
OneWire.write(&acknowledge, 1, 0);
break;
default:
;
}
}