This page includes the design and firmware for a DIY wired X32 Midi footswitch that uses a high-visibility OLED display and allows for 4 to 6 switches. Each switch can accommodate up to 6 assignments with a mix of Channel, Bus, Aux, FX return, Matrix, or Main L/R/C that can be programmed as mutes(on/off), or faders(low/high). The NanoMute X32 is easy to build and is particularly useful for handsfree control of channel, bus, FX, and output mutes. The design also allows for optional status leds on each switch. Check out the PDF user manual below for more info. Firmware versions: v2.1 - Currently posted installer version (described above) v3.0 - Upgrade adds A/B scene recall, Mute Groups, and DCA mutes & faders v3.1 - Upgrade adds tap functionality for FX1-4 v3.2 - Upgrade adds tap functionality for FX5-8, and A/B snippet recall v3.3 - Upgrade adds USB and/or X-Live record/stop functionality (latest version) v4.0 - Upgrade to add configuration save/load via Midi SYSEX (future) Later versions use the same hardware and installer package as v2 but require an updated firmware hex file. If you've successfully built a v2 NanoMuteX32 and want the latest version, just send me a pic of your build at mr_hollywood@cogeco.ca and say hello. For anyone interested in going wireless, I use the NanoMute X32 with a set of Widi Master Bluetooth adaptors and they work great. Just plug them in and they pair automatically... The XR-18 version can be found here: https://sites.google.com/site/mrhollywoodmusic/behringer-xr18/midi-footswitch You can also follow the latest updates here: https://www.facebook.com/hollywoodcornwall/