This project provides a wireless CAT control to my Yaesu 897 and uses a serial Bluetooth module from eBay. I got the design and schematics from http://www.lynovation.com/CTR-Remote.htm. The software is for the PC and pocket PC and donation ware. The Bluetooth module also worked with MixW and CTR remote, appearing as COM3 and COM8 respectively. But, for some reason, will not function with HRD.
The components came from eBay, Maplin and my junk box (parts list below).
Schematic here (PDF)
Bluetooth Module from eBay here
Two 0.1uF capacitors, 10k resistor, veroboard offcut from junk box
78L05 regulator from eBay here
Pico fuse from eBay here
Maplin – four core cable (XR91Y) and 8 pin mini-DIN plug (JX06G)
Also, to program Bluetooth module with callsign, baud rate (leave it at 9600bps and PIN code, the use of a USB to serial TTL adapter is required. Obtained from eBay here if not in the handy USB accessories kit we all have
More information on programming here
Howto with photos…
73, Derek M0XDC