home-automation/hardware/arduino/i2c_dip/master_reader/master_reader.ino

31 lines
810 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(115200); // start serial for output
while(!Serial);
}
void loop() {
Wire.requestFrom(0x5F, sizeof(int)); // request 6 bytes from slave device #8
//while (Wire.available()) { // slave may send less than requested
uint8_t value = Wire.read(); // receive a byte as character
Serial.println(value); // print the character
//}
delay(500);
}