Digirig Lite

A minimalistic version of Digirig with the same audio codec as Digirig Mobile but without a serial port. combines audio codec and PTT switch supports PTT by GPIO3 of CM108 audio codec supports VOX PTT by the tone on the unused right channel (experimental) works with all major OS flavors: Windows, MacOS and Linux uses a single TRRS connector compatible with existing Digirig audio cables growing collection of pre-made cables including popular Icom, Yaesu, Elecraft, Baofeng, Xiegu transceivers isolation can be easily added using inexpensive USB isolator dongle Discussion and software configuration examples can be found in this thread.  Digirig Lite Setup Manual Change log: 1.0 – Initial release, PTT by GPIO confirmed working by multiple testers with a range of apps. PTT by tone circuitry found to be not robust and therefore disconnected. 1.1 – Reduced current limiting resistor in PTT line to accommodate existing Digirig cables with resistors already in them. Improved PTT by tone on the right channel – now works with a range of software and apps, but considered experimental at this point. 1.2 – Switched form factor to a USB-C cable with USB-A adaptor included, added indicators for power and PTT, significantly improved PTT by tone/VOX. Solder pads for individually disabling PTT by GPIO3 and VOX. Pad easy access to codec’s GPIO lines used for COS and CTCSS. Digirig Lite 1.2 – Schematic