› Forums › General Questions and Comments › dropControllerBT does not connect via Bluetooth using Windows › Reply To: dropControllerBT does not connect via Bluetooth using Windows
Make sure you are using version 2 of the sketch and app. These are the ones listed on the download page.
dropControllerBT&PC Arduino Sketch version 22.214.171.124.
DropController Windows app. Version 126.96.36.199
Using a USB connection try the following.
1 – welcome message
2 – handshake message
1 – connect the dropController/Arduino to the PC and determine the COM port
2 – open the Arduino IDE
3 – open the serial monitor and select the dropController COM port
4 – in the serial monitor set the baud rate to 9600 + Both NL +CR
5 – reset the Arduino (or close and reopen the serial monitor)
you should get the welcome message saying the firmware version and the date it was uploaded.
1 – continue from above
2 – in the serial monitor enter <HELLO> and click send.
You should get a H reply.
3 – enter <VERSION> and click send
You should get the firmware version again.
The above will confirm you have a working connection.
If this works try the same using the Bluetooth connection. As you know, once you have paired a Classic BT module you get a COM port. Select this port when trying the above.
For Bluetooth the handshake reply is HELLO not H
Edit: sometimes, it take 2 tries for the Windows app to connect.