Bastl Instruments has introduced two ADDON boards for the bitRanger:

The BitBoard is a breadboard add-on module that allows users to build custom circuits and user interfaces for the BitRanger.

The synapsis is a 4×4 pushbutton matrix that offers performative control of the Bit Ranger.

The bitRanger, introduced earlier this year at Moogfest, is a handheld, patchable analog logic computer designed for sound. Here’s a video intro from Václav Peloušek & Peter Edwards:

Details on all three devices are available at the Bastl Instruments site.