33 lines
734 B
C++
33 lines
734 B
C++
// Wire Master Reader
|
|
// by Nicholas Zambetti <http://www.zambetti.com>
|
|
|
|
// Demonstrates use of the Wire library
|
|
// Reads data from an I2C/TWI slave device
|
|
// Refer to the "Wire Slave Sender" 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)
|
|
Serial.begin(9600); // start serial for output
|
|
}
|
|
|
|
void loop()
|
|
{
|
|
Wire.requestFrom(2, 6); // request 6 bytes from slave device #2
|
|
|
|
while (Wire.available()) // slave may send less than requested
|
|
{
|
|
char c = Wire.read(); // receive a byte as character
|
|
Serial.print(c); // print the character
|
|
}
|
|
|
|
delay(500);
|
|
}
|