| // 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 |
| |
| // This example code is in the public domain. |
| |
| |
| #include <Wire.h> |
| |
| void setup() |
| { |
| Wire.begin(); // join i2c bus (address optional for master) |
| } |
| |
| byte x = 0; |
| |
| void loop() |
| { |
| Wire.beginTransmission(4); // transmit to device #4 |
| Wire.write("x is "); // sends five bytes |
| Wire.write(x); // sends one byte |
| Wire.endTransmission(); // stop transmitting |
| |
| x++; |
| delay(500); |
| } |
