I believe this is correct. He has basically created a very task specific keyboard.
Awesome thanks! This is great! I might have to look at doing this soon. I had a project just like this on my list, but have never been able to get around to it. You had mentioned AutoHotKey at one point, is that what you are using for your text expander? I have experience what that software, do it would be fairly easy for my to recreate.
Which Bluetooth module are you using? I’m assuming you are using it in conjunction with something like a Teensy?