LoLin on I2C as slave
Posted: Thu Sep 01, 2016 9:00 amHello!
I was trying to link two modules together on the I2S and I did not succeed. It turned out that the module is configured as a slave, is not determined by the scanner. In this case both modules work with third-party devices normally.
My code for slave device:
I was trying to link two modules together on the I2S and I did not succeed. It turned out that the module is configured as a slave, is not determined by the scanner. In this case both modules work with third-party devices normally.
My code for slave device:
Code: Select all
#include <Wire.h>
void setup() {
Wire.begin(8); // join i2c bus with address #8
Wire.onReceive(receiveEvent); // register event
Serial.begin(9600); // start serial for output
}
void loop() {
delay(100);
}
// function that executes whenever data is received from master
// this function is registered as an event, see setup()
void receiveEvent(int howMany) {
while (1 < Wire.available()) { // loop through all but the last
char c = Wire.read(); // receive byte as a character
Serial.print(c); // print the character
}
int x = Wire.read(); // receive byte as an integer
Serial.println(x); // print the integer
}