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Bluetooth example with Kivy. A more fleshed-out example here: https://github.com/tito/android-demo. A more modern way of doing it: https://github.com/kivy/plyer. And this guy used Kivy to connect to an Arduino: https://github.com/brean/arduino-kivy-bluetooth. Native Kivy code (?): https://groups.google.com/d/msg/kivy-users/n_cMbFzf_1A/5edKgQgycx0J
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| # Same as before, with a kivy-based UI | |
| ''' | |
| Bluetooth/Pyjnius example | |
| ========================= | |
| This was used to send some bytes to an arduino via bluetooth. | |
| The app must have BLUETOOTH and BLUETOOTH_ADMIN permissions (well, i didn't | |
| tested without BLUETOOTH_ADMIN, maybe it works.) | |
| Connect your device to your phone, via the bluetooth menu. After the | |
| pairing is done, you'll be able to use it in the app. | |
| ''' | |
| from jnius import autoclass | |
| BluetoothAdapter = autoclass('android.bluetooth.BluetoothAdapter') | |
| BluetoothDevice = autoclass('android.bluetooth.BluetoothDevice') | |
| BluetoothSocket = autoclass('android.bluetooth.BluetoothSocket') | |
| UUID = autoclass('java.util.UUID') | |
| def get_socket_stream(name): | |
| paired_devices = BluetoothAdapter.getDefaultAdapter().getBondedDevices().toArray() | |
| socket = None | |
| for device in paired_devices: | |
| if device.getName() == name: | |
| socket = device.createRfcommSocketToServiceRecord( | |
| UUID.fromString("00001101-0000-1000-8000-00805F9B34FB")) | |
| recv_stream = socket.getInputStream() | |
| send_stream = socket.getOutputStream() | |
| break | |
| socket.connect() | |
| return recv_stream, send_stream | |
| if __name__ == '__main__': | |
| kv = ''' | |
| BoxLayout: | |
| Button: | |
| text: '0' | |
| on_release: app.reset([b1, b2, b3, b4, b5]) | |
| ToggleButton: | |
| id: b1 | |
| text: '1' | |
| on_release: app.send(self.text) | |
| ToggleButton: | |
| id: b2 | |
| text: '2' | |
| on_release: app.send(self.text) | |
| ToggleButton: | |
| id: b3 | |
| text: '3' | |
| on_release: app.send(self.text) | |
| ToggleButton: | |
| id: b4 | |
| text: '4' | |
| on_release: app.send(self.text) | |
| ToggleButton: | |
| id: b5 | |
| text: '5' | |
| on_release: app.send(self.text) | |
| ''' | |
| from kivy.lang import Builder | |
| from kivy.app import App | |
| class Bluetooth(App): | |
| def build(self): | |
| self.recv_stream, self.send_stream = get_socket_stream('linvor') | |
| return Builder.load_string(kv) | |
| def send(self, cmd): | |
| self.send_stream.write('{}\n'.format(cmd)) | |
| self.send_stream.flush() | |
| def reset(self, btns): | |
| for btn in btns: | |
| btn.state = 'normal' | |
| self.send('0\n') | |
| Bluetooth().run() |
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