from sensors.connection import globalArduinoSlave
import time

conn = globalArduinoSlave()

class MagneticSensor:
  def __init__(self):
    pass

  def start(self):
    if not conn.isConnected():
      conn.open()
    conn.addRecvCallback(self._readCb)

  def _readCb(self, raw):
    print("mag: ", conn.getMagneticField())

  def calibrate(self, x, y):
    pass

  def read(self):
    return conn.getMagneticField()