tawanda · August 9, 2017 18:29 · Nov 12, 2013
diff --git a/bluetooth.py b/bluetooth.py
@@ -0,0 +1,37 @@
+'''
+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__':
+    recv_stream, send_stream = get_socket_stream('linvor')
+    send_stream.write('hello\n')
+    send_stream.flush()
+
diff --git a/bluetooth_kivy.py b/bluetooth_kivy.py
@@ -0,0 +1,84 @@
+# 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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