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« Last post by chris93372 on Sat, 20 June 2026, 12:03:06 »
Good morning-
Received my Round 1 BSSK, and have proceeded to get a solenoid installed. Per your recommendation, I got the 5v Sparkfun solenoid, and it will fit into the case w/o any issue.
The problem I'm running into is that fn+space+t will not toggle the solenoid. The only time it works is when I press Caps Lock. The Yellow LED on the board lights up, and then the solenoid legs energize. When I press Caps Lock down again, then it reverts back to 0v.
I've tried recompiling a new hex file with B3 and B6 swapped, but that didn't fix the issue.
To make things more fun, when I flash the BSSK with the r2 firmware, then the solenoid works...for some of the keys, and I can't toggle it off.
I've read through th thread, and haven't seen anything similar?