ble service

import simplepyble
from kivy.app import App
from kivy.uix.button import Button
from kivy.uix.gridlayout import GridLayout


class MyGridLayout(GridLayout):
    def __init__(self, **kwargs):
        super(MyGridLayout, self).__init__(cols=3, **kwargs)

        # create the UI components
        self.btn_scan = Button(text="Scan"  )
        self.btn_scan.bind(on_press=self.scan_for_peripherals)

        self.btn_connect = Button(text="Connect")
        self.btn_connect.bind(on_press=self.connect_to_peripheral)
        self.btn_connect.disabled = True

        self.btn_disconnect = Button(text="Disconnect")
        self.btn_disconnect.bind(on_press=self.disconnect_from_peripheral)
        self.btn_disconnect.disabled = True

        # add the components to the layout
        self.add_widget(self.btn_scan)
        self.add_widget(self.btn_connect)
        self.add_widget(self.btn_disconnect)

        # create a variable to store the selected adapter and peripheral
        self.adapter = None
        self.peripheral = None


    def scan_for_peripherals(self, instance):
        # get a list of available BLE adapters
        self.adapters = simplepyble.Adapter.get_adapters()

        if len(self.adapters) == 0:
            print("No adapters found")
            return

        # Query the user to pick an adapter
        self.adapter = self.adapters[0]




        print(f"Selected adapter: {self.adapter.identifier()} [{self.adapter.address()}]")

        self.adapter.set_callback_on_scan_start(lambda: print("Scan started."))
        self.adapter.set_callback_on_scan_stop(lambda: print("Scan complete."))
        self.adapter.set_callback_on_scan_found(lambda peripheral: print(f"Found {peripheral.identifier()} [{peripheral.address()}]"))

        # Scan for 5 seconds
        self.adapter.scan_for(5000)
        self.peripherals = self.adapter.scan_get_results()

        # Query the user to pick a peripheral
        print("Please select a peripheral:")
        for i, peripheral in enumerate(self.peripherals):
            print(f"{i}: {peripheral.identifier()} [{peripheral.address()}]")

        choice = int(input("Enter choice: "))
        self.peripheral = self.peripherals[choice]

        self.btn_connect.disabled = False

    def connect_to_peripheral(self, instance):
        if self.peripheral is None:
            print("No peripheral selected")
            return

        print(f"Connecting to: {self.peripheral.identifier()} [{self.peripheral.address()}]")
        self.peripheral.connect()

        print("Successfully connected, listing services...")
        services = self.peripheral.services()
        for service in services:
            print(f"Service: {service.uuid()}")
            for characteristic in service.characteristics():
                print(f"    Characteristic: {characteristic.uuid()}")

        self.btn_disconnect.disabled = False

    def disconnect_from_peripheral(self, instance):
        if self.peripheral is None:
            print("No peripheral selected")
            return

        self.peripheral.disconnect()
        self.peripheral = None
        self.adapter = None

        self.btn_connect.disabled = True
        self.btn_disconnect.disabled = True


class MyApp(App):
    def build(self):
        return MyGridLayout()


if __name__ == '__main__':
    MyApp().run()