code: func (h *BH1750Driver) RawSensorData() (level int, err error) {
  
  	buf := []byte{0, 0}
  	bytesRead, err := h.connection.Read(buf)
  	if bytesRead != 2 {
  		err = errors.New("wrong number of bytes read")
  		return
  	}
  	if err != nil {
  		return
  	}
  	level = int(buf[0])<<8 | int(buf[1])
  
  	return
  }
docs: // RawSensorData returns the raw value from the bh1750