Bug

[MoucheTaMoustache]

Hi! On LogData.py file, VS Code found unexpected indentations. Do you knew that ?

[riktw]

Hi, I didn't saw that before. I didn't get any with VS Code, but I removed some indents that might be the cause. Let me know if it's fixed, if not, a screenshot (or a PR with the fixes) would help a lo.

[MoucheTaMoustache]

Hi! Thank you for the reply! Since your intervention, VS code don't find indents errors. Thank you!

I have modified "address" and "UUID" corresponding to my ANENG9002 on LogData.py (I obtained it with bleak script). When I launch logdata.py on venv, I have an asyncio and bleak error:

Do you know what is going on? Moustache

PS : another scan with bleak give me these UUIDS for my Aneng9002 : 00001800-0000-1000-8000-00805f9b34fb (Handle: 1): Generic Access Profile 00001801-0000-1000-8000-00805f9b34fb (Handle: 6): Generic Attribute Profile 0000fff0-0000-1000-8000-00805f9b34fb (Handle: 7): Vendor specific 0000180a-0000-1000-8000-00805f9b34fb (Handle: 11): Device Information f000ffc0-0451-4000-b000-000000000000 (Handle: 30): Unknown

Which one is the good?

[MoucheTaMoustache]

Hi! I have found a way to resolve this bug. I have adapted an example code from github's bleak's page and your code.

import sys
import asyncio
import platform
import logging
import keyboard
import csv

from multimeter import *
import matplotlib.pyplot as plt
from bleak import BleakClient
ADDRESS = ("FC:58:FA:53:61:C0") #address of my aneng
CHARACTERISTIC_UUID = "0000fff4-0000-1000-8000-00805f9b34fb"  # <--- Change to the characteristic you want to enable notifications from.

dataGraph = []
multimeter = AN9002()
lastDisplayedUnit = ""

def notification_handler(sender, data):
    global dataGraph
    global multimeter
    global lastDisplayedUnit
    # Simple notification handler which prints the data received.
    # print("Data multimeter: {0}".format(data.hex(' ') ))
    multimeter.SetMeasuredValue(data)
    displayedData = multimeter.GetDisplayedValue()
    if multimeter.overloadFlag:
        displayedData = 99999
        print("Overload")
    unit = multimeter.GetDisplayedUnit()
    if lastDisplayedUnit == "":
        lastDisplayedUnit = unit
    if unit != lastDisplayedUnit:
        lastDisplayedUnit = unit
        dataGraph.clear()
        plt.clf()
    dataGraph.append(displayedData)
    plt.ylabel(unit)
    print(str(displayedData) + " " + unit) 

async def run(address):
    client = BleakClient(address)

    async with BleakClient(address) as client:
        await client.start_notify(CHARACTERISTIC_UUID, notification_handler)
        await asyncio.sleep(15.0)  #show data for 15"
        while(1):
            if keyboard.is_pressed("q"):
                print("Shutting down!");
                break;
            else:
                plt.plot(dataGraph, color='b')
                plt.draw()
                plt.pause(0.1)
                await asyncio.sleep(0.5)

if __name__ == "__main__":
    loop = asyncio.get_event_loop()
    loop.set_debug(False)
    loop.run_until_complete(run(ADDRESS))

    with open('plot.csv', 'w') as f:
        wr = csv.writer(f)
        wr.writerow(dataGraph)`

However, I have difficulty to exit script. VS Code asked me to delete some script's line... (It doesn't understand :

    except Exception as e:
        print(e)
    finally:).``
    except Exception as e:
        print(e)

Look I have obtained my first graph :

So, modifications of your code let me difficult to stop script with 'q' touch. And, I don't obtain csv file for the moment. Do you have an idea?

Good sunday! Moustache

[riktw]

A nice to see you got a graph now :)

I had a look at the libraries, it seems that to use the "keyboard" library, the script needs to run as root. After I installed the keyboard and bleak library as root and ran the script as root, it worked on my side, with a plot.csv file as well. I updated the readme to match this.