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If you are asking for the .hex to make the 16u2 become a keyboard, you can download that here https://github.com/nylen/auto-f1-presserIf that doesn't work then you can try https://github.com/NicoHood/HID but I have not tested this.If your asking for project hex then just generate it yourself, the project's only library, Bounce2, can be downloaded via Sketch->Include Library->Manage Library or from https://github.com/thomasfredericks/Bounce2
I bought a strip and cut off the last 4 leds (you can cut them individually) but you can also just buy the chips themselves. The option of 30, 60, or 144 leds per meter will say how dense the leds are and the waterproof will come in silicone.https://i.ebayimg.com/images/g/WggAAOSwK6RZJBGr/s-l1600.jpgStrip that I bought but price has gone up: https://www.ebay.com/itm/322528390679just the chips: https://www.ebay.com/itm/272602524845
OSU! KEYBOARD WITH RGB LEDs
OSU! KappaPad PCB
The switches are connected between Ground and Input pins. I use the internal pullup to avoid needing resistors.
sorry for the late reply I did not see your comment.
Yes it does. I have made another board that uses Capacitance for input using the Pro Micro similar to https://github.com/fb39ca4/kappa-pad If someone asks for it I will make another Instructables explaining how I made it with pictures.
I'm so sorry that I forgot to do this, I have made the Instructables anywayshttps://www.instructables.com/id/OSU-KEYBOARD-WITH-RGB-LEDs/
I would preferred to use a Teensy board as there is built in usb host support and is small but I do not own a small board and had the uno laying around doing nothing. I did not want to buy another board just for this project. I only have an arduino uno and a duo and the duo is too large and way overkill.
I did put in RGB lighting with the WS2128B a long time ago with lighting affects. If people want it then I can make another instructables
Add metal threads to your 3D prints - make them functional!
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HacKeyboard, a mechanical keyboard built from scratch