code: func (h *ADXL345Driver) UseLowPower(power bool) (err error) {
  	if power {
  		h.bwRate.lowPower = 1
  	} else {
  		h.bwRate.lowPower = 0
  	}
  	if _, err := h.connection.Write([]byte{ADXL345_REG_BW_RATE, h.bwRate.toByte()}); err != nil {
  		return err
  	}
  	return
  }
docs: // SetRate change the current rate of the sensor