Works really well! As someone who loves writting I can see a purpose as a better keyboard for a phone with the right case design, if one was wanting to do more terminal work or perhaps programming with the tab and arrow key functions. Also just good for writting in more of a word processor style and less in notepad apps. I did use the arduino code from Github and made this for my raspberrypi for it too using the 3d schematics on thingverse. My only suggestion would be to switch the upper FN key to a delete key as ctl-alt-del is in my own opinion more important than two FN keys? Other than that all I can say is thank you very much to the creator who helped me build what I have dreamed of doing with my raspberry pi 3b + since I got it over 5 years ago :) you rock man thanks for al your work.
Response from Anthony DiGirolamo | Aug. 11, 2019
Thanks! I'm glad it's working well for you! If needed you can customize the layout to whatever you like. To switch the upper left FN key to Delete change ASCII_FN on this line: https://github.com/AnthonyDiGirolamo/teensy-thumb-keyboard/blob/master/firmware/LayoutThumbKeyboard.h#L115 to KEY_DELETE and recompile the firmware. Instructions on how to do that here: https://github.com/AnthonyDiGirolamo/teensy-thumb-keyboard#compiling-on-windows-machines You can find all the available keycodes here: https://github.com/PaulStoffregen/cores/blob/master/teensy3/keylayouts.h#L103
I bought two of these, as I made a mistake soldering the first one (usb wires to pads on the teensy 3.2) and in the process of desoldering those wires fried my teensy, then wile trying to remove the teensy from the keyboard pcb ruined it.
I would highly recommend not soldering the teensy DIRECTLY to the keyboard pcb but add a header for easy removal. this is what I did on the 2nd one and its all working fine!