knut.tveitane

I have tried to set up my first Bluetooth project with my Netduino 2 plus, but I am banging my head into a problem.

I got myself an HC-05 Bluetooth module. Not a very user-friendly module with its 1.5mm pitch edge contacts, but despite my limited soldering experience I got the necessary wires successfully connedted. Basically, the unit works and the serial interface side is responsive - I can enter command mode, send AT-commands to the unit and get the expected response back. Except...

According to the documentation I found on the net, when the unit is in in Master mode, the AT+INQ command should return a list of other devices within reach of the HC-05 (within a minute or so). I have put my Android phone as well as a Bluetooth headset close to my project workspace, but AT+INQ returns nothing exept from an OK (after a minute).

On my smartphone, I can see and even connedt to the HC-05 module, so the radio communication side also works. But probably there is a configuration issue which I cant figure out.

Is there anybody out there experienced in Bluetooth configuration who could lead me in the right direction?

-knut

I was just about to connect the USB cable to my NetDuino plus 2 to download a new experiment, when I noticed a small spark... an electrostatic discharge. The discharge happened between the outer metal shells on the plug and socket - which I believe is unconnected on the Netduino side. Nevertheless, something broke. Result: My computer does no longer recognise the Netduino as an USB device.

Except from the malfunctioning USB port, the board seems to work - the last program I dowmloaded, stll performs as it did before, the reset button works and the onboard LEDs work as they should. But without the USB port I am not able to reprogram my Netduino. Or... is there any way I could program it via serial communication (through UART1/pins d0/d1)?

If not... there is probably no hope for the board?