Use iTag Bluetooth BLE tracker as a light switch with Home Assistant

ble-button.py

from bluepy import btle
import requests

bleAddr = "ff:ff:10:05:ef:ff"
url = "http://localhost:8123/api/services/light/toggle"
lamp = "light.mylight"
hassPasswd = "password"

class LightToggleDelegate(btle.DefaultDelegate):
  def __init__(self):
    btle.DefaultDelegate.__init__(self)
  
  def handleNotification(slef, cHandle, data):
    requests.post(url, json = {"entity_id": lamp}, headers = {"x-ha-access": hassPasswd, "Content-Type": "application/json"})
    print("Lights toggled")

dev = btle.Peripheral()
dev.connect(bleAddr)
print("Connected to:", bleAddr)
dev.setDelegate(LightToggleDelegate())
while True:
  dev.waitForNotifications(10)
dev.disconnect()
print("Disconnected...")

requirements.txt

bluepy==1.1.4
certifi==2018.1.18
chardet==3.0.4
idna==2.6
requests==2.18.4
urllib3==1.22

setup.sh

#!/usr/bin/env sh

apk update
apk add vim py3-virtualenv glib glib-dev gcc make musl-dev
virtualenv venv
source venv/bin/activate
pip install -r requirements.txt