HumiTemp Sensor Tag

ht2.py

#!/usr/bin/env python3
# Script is based on https://www.silabs.com/community/wireless/bluetooth/forum.topic.html/python_code_to_useb-RswG
import time
import struct
from meteocalc import Temp, dew_point, heat_index
from influxdb import InfluxDBClient
from bluepy.btle import *
# Product ID (Google / Amazon): B06XQWWPNT
# The decimal reading is only valid to the 10th, it doesnt do 100th, so 34.7c vs 34.75c and 30.5% vs 30.55%
SENSORTAG_NAME = "HT-2"
SENSORTAG_ADDRESS = "00:1B:35:12:5D:A7"
SENSORTAG_ALIAS = "Bøttekott"

global battery
# callback class
class MyDelegate(DefaultDelegate):
    global battery
    def __init__(self):
        DefaultDelegate.__init__(self)

    def handleNotification(self, cHandle, data):
        negative,rawTint,rawTdec,reserved,rawHint,rawHdec = data
        temp = float(rawTint) + float(rawTdec) / 10
        RH = float(rawHint) + float(rawHdec) / 10
        if negative > 0:
          temp = temp - temp - temp
        t = Temp(temp, 'c')
        dp = dew_point(temperature=t, humidity=RH)
        hi = heat_index(temperature=t, humidity=RH)
        global battery
        json_body = [
          {
          "measurement": "humitemp",
            "tags": {
              "sensor_address": SENSORTAG_ADDRESS,
              "sensor_name": SENSORTAG_NAME,
              "sensor_alias": SENSORTAG_ALIAS,
            },
            "fields": {
              "humidity_temp": temp,
              "humidity": RH,
              "battery": battery,
              "dew_point": dp.c,
              "heat_index": hi.c,
            }
          }
        ]
        client = InfluxDBClient('localhost', 8086, database='sensortag')
        client.write_points(json_body)
        #print(json_body)

enable_notify = b"\x01\x00"
disable_notify = b"\x00\x00"
enable_sensor = b'\x01'
disable_sensor = b'\x00'

# connect to device
per = None #Peripheral(SENSORTAG_ADDRESS, "public")

while True:
  try:
    if per is None:
      per = Peripheral()
    while True:
      try:
        if "status" in dir(per):
          status = per.status()
          if status['state'][0] == 'conn':
            break
      except:
        per.connect(SENSORTAG_ADDRESS)
        time.sleep(1.0)
    # Sensor control
    for chara in per.getCharacteristics():
      if chara.uuid == '0000aa22-0000-1000-8000-00805f9b34fb':
        control_uuid = chara.uuid
        control_handle = chara.handle
      if chara.uuid == '00002a19-0000-1000-8000-00805f9b34fb':
        batteryRaw = chara.read()
        battery = float(struct.unpack('<b',chara.read())[0])

    print("Delegate")
    # set callback for notifications
    per.setDelegate(MyDelegate())
    # enable sensor
    per.writeCharacteristic(control_handle, enable_sensor)
    # enable notification
    notify = per.getCharacteristics(uuid='0000aa21-0000-1000-8000-00805f9b34fb')[0]
    notify_handle = notify.getHandle() + 1
    per.writeCharacteristic(notify_handle, enable_notify, withResponse=True)

    # wait for answer
    while True:
        if per.waitForNotifications(5.0):
            # Disable notitication, we've got data already.
            per.writeCharacteristic(notify_handle, disable_notify, withResponse=True)
            # Disable sensor to save battery
            per.writeCharacteristic(control_handle, disable_sensor)
            time.sleep(50.0)
            break
  except BTLEException as e:
    continue

Do you have any issues with getting the data from your humitemp sensor? I'm a python noob and struggling with this somewhat.....any tips you could give?