ラズパイでBLEタグ – サンプルスクリプト [seek2notify.py]

#!/usr/bin/python3
# -*- coding: utf-8 -*-
# SEEK2 Button Event Notification
import sys
import logging
import time
from bluepy.btle import *

# uncomment the following line to get debug information
logging.basicConfig(format='%(asctime)s: %(message)s', level=logging.DEBUG)

class ControlSeek2:
  def __init__(self, mac):
    self._data = {}
    try:
      self.p = Peripheral(mac, ADDR_TYPE_RANDOM)
      self.p.setDelegate(NotificationDelegate())
      logging.debug('Seek2 connected !')
    except BTLEException:
      self.p = 0
      logging.debug('Connection to Seek2 failed ! [%s]', mac)
      raise

  def _enableNotification(self):
    try:
      # Enable [button event] notification 
      self.p.writeCharacteristic(0x001c, b'\x01\x00')
      logging.debug('Notifications enabled')
    except BTLEException as err:
      print(err)
      self.p.disconnect()


  def _disableNotification(self):
    try:
      # Enable [button event] notification 
      self.p.writeCharacteristic(0x001c, b'\x00\x00')
      logging.debug('Notifications disabled')
    except BTLEException as err:
      print(err)
      self.p.disconnect()


  def monitorSeek2(self):
    try:
      # Enable notification
      self._enableNotification()
      # Wait for notifications
      logging.debug('Wainting for button pushed 10 second')
      while self.p.waitForNotifications(10.0):
        # handleNotification() was called
        continue
      logging.debug('Notification timeout')
      self._disableNotification()
    except:
      return None

  def disconnect(self):
    self.p.disconnect()

class NotificationDelegate(DefaultDelegate):
    def __init__(self):
      DefaultDelegate.__init__(self)

    def handleNotification(self, cHandle, data):
      if cHandle == 0x1b:
         print("Button push detected !!!")
      else:
         logging.debug('handle %x', cHandle)




# main program

if __name__== '__main__':

  print("seek2notify start")
  argvs = sys.argv
  argc = len(argvs)

  if (argc < 2):
    print("Require Bluetooth address [XX:XX:XX:XX:XX:XX]")
    quit()

  seek2_mac_addr = argvs[1]
  mySeek2 = ControlSeek2(seek2_mac_addr)

  print("SEEK2 found %s" % seek2_mac_addr)

  mySeek2.monitorSeek2()