nthsthing/dobluetooth.py

import asyncio
from bleak import BleakScanner
from bleak import BleakClient
import time

target_name = "Long name works now"
global target_address
target_address = None

SERVICE_UUID=        "d86aecf2-d87d-489f-b664-b02de82b2fc0"
CHARACTERISTIC_UUID= "d86aecf2-d87d-489f-b664-b02de82b2fc0"

async def connect():
    devices = await BleakScanner.discover()
    for d in devices:
        print(d)
        if target_name == d.name:
            target_address = d.address
            print("found target {} bluetooth device with address {} ".format(target_name,target_address))
            return target_address
            break
        else:
            print("could not find device")

async def getData():
    target_address = await connect()
    if target_address is not None:
        async with BleakClient(target_address) as client:
            print(f"Connected: {client.is_connected}")

            while 1:
                try:
                    data = await client.read_gatt_char(CHARACTERISTIC_UUID)
                    datastr = data.decode('utf-8') #convert byte to str
                    dataarr = convertToNumbers(datastr)
                    print("time: {} ||| numbers: {}".format(time.time(), dataarr))
                except Exception:
                    print("failed to get data, restarting connection.")

def convertToNumbers(stringlist):
    dlist = stringlist.split(",")
    dlist = dlist[0:-1]
    intlist = []

    for string in dlist:
        intlist.append(float(string))
    return intlist