Sat May 27, 2017 10:04 am
Gamebuino Raspberry
GND <--------------> -
3V3 <--------------> -
SDA <--------------> SDA (GPIO 2) (Pin 3)
SCK <--------------> SCK (GPIO 3) (pin 5)
i2cdetect -y 1
#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
}
Sat May 27, 2017 6:13 pm
Did you connect the grounds, though? To make sure that their ground level is the same.I did not connect gnd and 3v3 because since they were already powered I think it was not needed