load('api_i2c.js');

let i2c = I2C.get_default();
function scan_devices() {
  print('Start I2C device scan..\n');
  for (let addr=0; addr <= 0x7f; addr++) {
    if(I2C.write(i2c, addr, '0', 1, true)){
      print('found device @', addr );
    }
  }
  print('I2C device done..\n');
}

scan_devices();