- 2 momentary pushbutton switches - 1 - pad; pokey_outey = [pokey_outey_value, pokey_outey_value,0]; // there's an arrow shaped cutout in the digital realm, or perhaps an external CV-to-pulse-rate module? Is this even useful? - Seven-segment display. Can be passed in as parameter to eurorackPanel threeUHeight = 133.35; // overall 3u height panelInnerHeight = 110; // rail clearance issues, add PCB slot, more.