message: BUZZER: Fixing firmata related issue
diff: @@ -103,10 +103,9 @@ upm_result_t buzzer_play_sound(const buzzer_context dev, int note, int delay)
  {
  assert(dev != NULL);
  - if (mraa_pwm_period_us(dev->pwm, note))
  + if (mraa_pwm_period_us(dev->pwm, note) != MRAA_SUCCESS)
  {
  - printf("%s: mraa_pwm_period_us() failed\n", __FUNCTION__);
  - return UPM_ERROR_OPERATION_FAILED;
  + printf("%s: mraa_pwm_period_us() did not succeed\n", __FUNCTION__);
  }
  if (mraa_pwm_write(dev->pwm, dev->volume * 0.5))
  