I was thinking about something similar this morning. This last year I've been making a special audio player for studying languages. There's no screen, but audi

I was thinking about something similar this morning. This last year I've been making a special audio player for studying languages. There's no screen, but audio input/output and 15 buttons that can glow different colors. I've programmed it to navigate through a tree structure of 'cards', where each card is (an audio clip of) a sentence in the target language and a recorded translation. The interface is all audio-based, with buttons.. hence 'TAPIR' player. Tactile Audio Player/Instructional Resource. Also it's a cute animal. :-). The SOC has an Arm Cortex M3 with 128kB of ram, so you can run JS or lua interpreter (started looking into adding Duktape JS interpreter to the firmware a couple of days ago), and program your own interface in JS. Also planning to make a bluetooth version, where the code runs on your smartphone, and the player is rather just a special keyboard with controllable lights and a mic. Maybe it's useful for creating new notes quickly. If you wanted a visual representation of your notes however, still need a screen. I'll make a proper demo video in the next few days, maybe I'll make a 'Show HN.' I've only got one working board atm, but I'm planning to solder up some more soon, could drop one in the post to you, if you'd like to mess around with one. Couple of photos here: https://photos.app.goo.gl/XWsxtQieKtixfEEJ9 https://photos.app.goo.gl/XWsxtQieKtixfEEJ9 https://photos.app.goo.gl/uvyfh2EYEz1G8kh88 https://photos.app.goo.gl/uvyfh2EYEz1G8kh88