Wire.h Library | Arduino

Serial.println(); delay(1000);

void requestEvent() Wire.write("Hello Master"); arduino wire.h library

void setup() Serial.begin(9600); Wire.begin(); // Join I2C bus as master Serial

void loop() Wire.beginTransmission(8); // Slave address 8 Wire.write("Hello Slave!"); Wire.endTransmission(); void requestEvent() Wire.write("Hello Master")