tanner/loadcell
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Add async mqtt connection

Browse Source
This commit is contained in:
Tanner Collin 2024-05-09 18:27:32 -06:00
parent a7189d3714
commit cffdf32735
2 changed files with 37 additions and 19 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

51
btproxy/main.py
View File

@ -1,43 +1,62 @@
import os, logging
DEBUG = os.environ.get('DEBUG')
logging.basicConfig(
format='[%(asctime)s] %(levelname)s %(module)s/%(funcName)s - %(message)s',
level=logging.DEBUG if DEBUG else logging.INFO)
import time import time
import asyncio
import bleak import bleak
from adafruit_ble import BLERadio from adafruit_ble import BLERadio
from adafruit_ble.advertising.standard import ProvideServicesAdvertisement from adafruit_ble.advertising.standard import ProvideServicesAdvertisement
from adafruit_ble.services.nordic import UARTService from adafruit_ble.services.nordic import UARTService
from aiomqtt import Client
ble = BLERadio() ble = BLERadio()
def scan(): def scan():
print("disconnected, scanning") logging.info('Disconnected, scanning')
for advertisement in ble.start_scan(ProvideServicesAdvertisement, timeout=1): for advertisement in ble.start_scan(ProvideServicesAdvertisement, timeout=1):
if not advertisement.complete_name.startswith('Feather'): if not advertisement.complete_name.startswith('Feather'):
continue continue
ble.connect(advertisement) ble.connect(advertisement)
print("connected to", advertisement.complete_name) logging.info('Connected to %s', advertisement.complete_name)
break break
ble.stop_scan() ble.stop_scan()
def read(connection): async def read(connection, mqtt_client):
uart = connection[UARTService] uart = connection[UARTService]
if uart.in_waiting: if uart.in_waiting:
res = uart.read(uart.in_waiting) res = uart.read(uart.in_waiting)
print(res) data = res.decode().strip().split()
logging.info('Received data: %s', data)
def loop(): await mqtt_client.publish('test', payload=str(data))
async def main():
while True: while True:
while ble.connected: async with Client('dev.tannercollin.com') as mqtt_client:
for connection in ble.connections: while ble.connected:
try: for connection in ble.connections:
read(connection) try:
except bleak.exc.BleakError: await read(connection, mqtt_client)
print('Disconnected, waiting 3 seconds and trying to reconnect...') except bleak.exc.BleakError:
connection.disconnect() logging.info('Disconnected, waiting 3 seconds and trying to reconnect...')
time.sleep(3) connection.disconnect()
await asyncio.sleep(3)
time.sleep(0.1) await asyncio.sleep(0.1)
scan()
scan()
if __name__ == '__main__': if __name__ == '__main__':
loop() logging.info('')
logging.info('==========================')
logging.info('Booting up...')
loop = asyncio.get_event_loop()
loop.run_until_complete(main())

5
firmware/firmware.ino
View File

@ -3,8 +3,7 @@
#include <InternalFileSystem.h> #include <InternalFileSystem.h>
#include "HX711.h" #include "HX711.h"
//#define calibration_factor -6980.0 // black wired load cell #define calibration_factor -6980.0 // black wired load cell
#define calibration_factor -5760.0 // orange wired load cell
#define DOUT 30 #define DOUT 30
#define CLK 27 #define CLK 27
@ -91,7 +90,7 @@ void loop()
int reading = (int) scale.get_units(); int reading = (int) scale.get_units();
String message = String(reading) + "\n"; String message = String(reading) + "\n";
message.toCharArray(buf, message.length()+1); message.toCharArray(buf, message.length()+1);
bleuart.write(buf, message.length()+1); bleuart.write(buf, message.length());
delay(50); delay(50);
} }