Sandbox FV-1, USB-C interface to reprogram EEPROM, switches for stereo or mono modes, allows 6 programs plus through program (program 0) for bypass, browser based assembler so works with Windows, Mac, Linux, etc., open source design and firmware https://sandboxpedal.com/ Initial design by Matthew Farrow of Alexander Pedals, this one I modified to use components I already had, this is what makes open source design real nice as you just modify it to your needs.
