The result nearly a year of continuous iteration, the DVM-V1 is perfect for implementing a multi-mode digital repeater using any base station radios you want. With digitally-controlled softpots for TX & RX modulation levels, an RJ45 for radio interfacing, and a USB-C connection to your host PC of choice, the DVM-V1 takes the original MMDVM modem concept and makes it even better.
Note 1: The DVM-V1 is currently only verified working with the DVMProject's dvmfirmware / dvmhost ecosystem. The boards will arrive with the latest version of the dvmfirmware flashed. The hardware is mostly backwards-compatible with the MMDVM/DVSwitch STM32 firmware, however softpot control is not present in that firmware today and therefore modulation levels will not be able to be fined tuned using the softpots.
Note 2: To upgrade/flash firmware to these boards, you will need an ST-LinkV2 or similar SWD programming tool. These are available for a low cost from many sellers on eBay and Aamzon.
