toughdev.com VS.

thecodeman.net

UPDATE (May 2025) - Check out Hackaday's write-up of the dsMP3 project here Wondering why even high-end multiband radios such as Tecsun H501 or PL990 do not support recording, I decided to build a multiband radio with support for recording as well as MP3 playback, using the dsPIC33EP512MC502 microcontroller, the Si4735 chipset, and the CH376 USB controller, to find out what it takes to build such a radio, and experience first hand the challenges that modern radio designers face, in a world that is full of RF interference flooding many parts of the traditional radio spectrum. Demo prototype The entire project took around six months to complete, with the stripboard prototype and firmware development phases taking slightly over two months. The PCB design phase, using KiCad and JLCPCB, took another couple of weeks and a few rounds of shipping from China. Believe it or not, no matter how careful I checked the PCB design prior to submission, there would always be errors which required