I'm trying to connect a Gamebuono with Raspberry Pi 2 through I2C connection.
I connected them as follows:
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Gamebuino Raspberry
GND <--------------> -
3V3 <--------------> -
SDA <--------------> SDA (GPIO 2) (Pin 3)
SCK <--------------> SCK (GPIO 3) (pin 5)
I did not connect gnd and 3v3 because since they were already powered I think it was not needed
On raspberry launch
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i2cdetect -y 1
But the gamebuino is not detected
On Gamebuino launch
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#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
}
How can I do it? Thanks