Thank you memjr.
You have made me browse through the issues (again), which inspired me to other approaches and searches.
Seems that the coroutines just need some time to breath, so the solution was not obvious to me, but no more than actually just inserting some "await asyncio.sleep()" statements. So it took me 9 days and a litres of coffee to find out that the solution is doing nothing for a while Image may be NSFW.
Clik here to view.
.
If it can be helpful to someone, here is the working code, I also added some error catching today:
You have made me browse through the issues (again), which inspired me to other approaches and searches.
Seems that the coroutines just need some time to breath, so the solution was not obvious to me, but no more than actually just inserting some "await asyncio.sleep()" statements. So it took me 9 days and a litres of coffee to find out that the solution is doing nothing for a while Image may be NSFW.
Clik here to view.
.If it can be helpful to someone, here is the working code, I also added some error catching today:
Code:
import asyncioimport bleakfrom kivy.app import Appfrom time import sleepfrom kivy.uix.label import Labelfrom kivy.uix.boxlayout import BoxLayoutfrom kivy.uix.button import Buttonfrom kivy.logger import Loggerimport logginglogging.Logger.manager.root = LoggerUART_SERVICE_UUID = "6E400001-B5A3-F393-E0A9-E50E24DCCA9E"UART_RX_CHAR_UUID = "6E400002-B5A3-F393-E0A9-E50E24DCCA9E"UART_TX_CHAR_UUID = "6E400003-B5A3-F393-E0A9-E50E24DCCA9E"remote_device = '28:CD:C1:04:FA:7B'data = b'toggle\r\n'class RemoteControlApp(App): def __init__(self): super().__init__() self.label = None self.running = True self.flag = False self.device = bleak.BleakClient(remote_device, use_cached_services=False) def send_command(self, button): print("Button pushed") self.flag = True def on_stop(self): self.running = False def build(self): self.boxlayout = BoxLayout(orientation= 'vertical', padding="20px") self.button = Button(text = 'Send Message', font_size="36dp") self.button.bind(on_press = self.send_command) self.boxlayout.add_widget(self.button) self.label = Label(font_size="36dp", text="Wait for device to connect...") self.boxlayout.add_widget(self.label) return self.boxlayout async def connect_and_send(self): while True: try: self.device = bleak.BleakClient(remote_device, use_cached_services=False) self.label.text = "Connecting to device..." client = self.device await client.connect() except bleak.exc.BleakDeviceNotFoundError: self.label.text = "Can't connect to device\nRetrying..." self.flag = False await asyncio.sleep(3) while True: if not self.device.is_connected: self.label.text = "Connection lost...\nTrying to reconnect..." await asyncio.sleep(2) break if not self.running: break if self.flag == True: try: client = self.device print("Connected...", client) self.label.text = "Message sent!" nus = client.services.get_service(UART_SERVICE_UUID) rx_char = nus.get_characteristic(UART_RX_CHAR_UUID) await client.write_gatt_char(rx_char, data, response=False) print("sent:", data) self.flag = False await asyncio.sleep(1.5) except bleak.exc.BleakError: self.label.text = "Error sending message\nRESTART PROGRAM." self.flag = False break except OSError: print("Something went wrong") self.label.text = "Something went wrong\nRESTART PROGRAM." self.flag = False break else: self.label.text="Remote device connected" await asyncio.sleep(.2) async def main(app): await asyncio.gather(app.async_run("asyncio"), app.connect_and_send())if __name__ == "__main__": Logger.setLevel(logging.DEBUG) # app running on one thread with two async coroutines app = RemoteControlApp() asyncio.run(main(app))Statistics: Posted by kheylen25 — Sun Jan 07, 2024 6:23 pm
