Android Bluetooth joystick

Using Arduino Networking, Protocols, and Devices
14

OK

Please check those 3 points:

  1. Arduino sketch
    Add Serial.println("***");
    as the last line of setup()
    Please confirm the stars are displayed on the serial monitor

D0 should be disconnected to allow sketch upload
(and reconnected afterward ;))

  1. Hardware connection
    please refer to message #4
    Only 3 wires
    5V to 5V
    GND to GND
    TX board to D0 (Arduino RX)

3)BT board Baud rate
Some BT boards default to 19200BPS
Please adjust "Serial.begin(9600)" and Serial Monitor Baud rate accordingly
Should you require it, I will upload an Arduino sketch for checking BT board Baud rate and/or setting a new value. This sketch also insure that the BT board is OK