neingeist
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arduinisten
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C++

15 years ago
// Wire Master Writer
// by Nicholas Zambetti <http://www.zambetti.com>
// Demonstrates use of the Wire library
// Writes data to an I2C/TWI slave device
// Refer to the "Wire Slave Receiver" example for use with this
// Created 29 March 2006
#include <Wire.h>
#include "WProgram.h"
void setup();
void loop();
void setup()
{
Wire.begin(); // join i2c bus (address optional for master)
Serial.begin(9600);
}
byte x = 0;
void loop()
{
Wire.beginTransmission(4); // transmit to device #4
Wire.send("x is "); // sends five bytes
Wire.send(x); // sends one byte
Wire.endTransmission(); // stop transmitting
//Wire.requestFrom(2,2);
while(Wire.available()) // loop through all but the last
{
char c = Wire.receive(); // receive byte as a character
Serial.print(c); // print the character
}
x++;
delay(500);
Serial.print(".");
}
int main(void)
{
init();
setup();
for (;;)
loop();
return 0;
}