What is SpaceFN and why you should give it a try
The SpaceFN concept - setting up your space key as a layer switch when held - is probably one of the most useful tweaks in the keyboard hobby. Let me explain how it works. My SpaceFN article on kbd.news made some rounds recently - quite surprisingly given the age of this concept. This piece you're reading is a condensed version of the full post. If you're left with unanswered questions, you'll most likely find the info you're looking for in the original write-up. On my imaginary top list of the most useful keyboard features, tweaks and hacks, SpaceFN would deserve a podium finish for sure. But what makes it so special? In short: SpaceFN is easy to implement, easy to learn, costs nothing, can be used with any keyboard, and can improve your productivity instantly. I will list its benefits below, but can state right at this point that the SpaceFN concept, setting up your space key as a layer switch when held, is clearly one of the most useful tweaks in the keyboard hobby....
Apr 30, 2024
Now all that remains is to make the bottom cover panel, and program the Teensy! That's all!
A shot of the final completed wiring, as well as the wire lacing. I also have a detail shot of the Teensy 2.0 and the wire lacing for each lead close up. ALL the new wiring is laced with a single cord (again, I use unflavored waxed dental floss). The cord starts in the top right and moves inward toward the Teensy, then it goes down the right side of the teensy, hooks right, turns down again when it hits the LED driver board, follows the bottom edge all the way to the left hand side, turns right, makes a slight detour by the shift key, and then continues up, goes left a key, then back right toward the Teensy, and then binds the left side and bottom of the Teensy. All one piece of string. No cuts, just knotting. Knotting and a LOT of feeding cord through loops! O_o
Enjoy!