An arduino library to communicate using the Dallas one-wire protocol, where the Arduino takes the role of a slave. Implementation of a DS2413 on Arduino UNO and ATTINY85
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#include "Arduino.h"
#include "SerialChannel.h"
byte SerialChannel::nextId = 1;
SerialChannel* SerialChannel::first = 0;
SerialChannel::SerialChannel(const char* name_)
: next(0)
, id((byte)-1)
, name(name_)
{
if(first == 0)
first = this;
else
{
SerialChannel* c = first;
while(c->next != 0) c = c->next;
c->next = this;
}
id = nextId++;
}
void SerialChannel::write(byte* data, short byteCount, unsigned long time)
{
if (time == (unsigned long)-1)
time = micros();
handleConnection();
Serial.write("START");
Serial.write(id);
writeULong(time);
writeShort(byteCount);
Serial.write(data, byteCount);
}
void SerialChannel::write(const char* text, unsigned long time)
{
write((byte*)text, strlen(text), time);
}
void SerialChannel::writeShort(short num)
{
Serial.write((byte*)&num, 2);
}
void SerialChannel::writeULong(unsigned long num)
{
Serial.write((byte*)&num, 4);
}
void SerialChannel::handleConnection()
{
int b = Serial.read();
if(b == (int)'C')
{
Serial.write("CONNECTION");
SerialChannel* c = first;
while(c)
{
Serial.write("START");
Serial.write(0);
Serial.write("ChannelInit");
Serial.write(c->id);
writeShort(strlen(c->name));
Serial.write(c->name);
c = c->next;
}
}
}