PIK 20B
A buddy and I bought this for a good price out in Texas. It had been sitting outside under a shade for several years and needed quite a bit of TLC. I installed an SN10B computer and FLARM, a Becker 4201 radio and a MicroAir mode C transponder.
FLARM Bluetooth Adapter
I built this so XCSoar can connect to the FLARM and display traffic, etc. It's a blk-md-bc04-b-demo board, which has a blk-md-bc04-b bluetooth module plus an RS232 level shifter on it. It's just perfect other than you have to adapt the FLARM 12v output to 5v. I dead-bugged a 78L05 onto the board. I then 3d printed a case for it.
You have to switch the module to a higher baud rate - the way to do that is set the switch to master mode, power it up and connect to it with a PC. Default baud rate is 9600, you should see it print out some stuff when it boots. Send the following command to switch it to baud rate 5 (19200, default FLARM rate)
AT+BAUD5 <replies with> +BAUD=5