3 ms·
Original author here. I have a prototype model of my keyboard that runs a firmware written in Forth. It is built around an ARM Cortex M4 dev board I got for $1
by technomancy 12y ago
Original author here.
I have a prototype model of my keyboard that runs a firmware written in Forth. It is built around an ARM Cortex M4 dev board I got for $19. The ATMega doesn't have enough ram for Forth or a real (non-subset) Scheme.
You can get bare ARM chips for practically nothing, but for this project I ruled out SMT since it's intended for a DIY kit and most people don't feel comfortable soldering SMT. An ATMega dev daughterboard costs a bit more ($9 vs $3) but fits the requirements of this project much better.
- rasz_pl 12y ago>I ruled out SMT since it's intended for a DIY kit and most people don't feel comfortable soldering SMT this is superstition and education issue, not technological one, SMD is EASIER, faster to solder, and cheaper. People are scared because they have soldering iron and know only soldering iron. Show them hot plate or hot air gun. I dont buy "but they already bought soldering gun, they would have to buy next tool" arguments. Its like peddling wooden car frames, because people have glue already. Soldering with hotair is easier to learn, faster to master, and more versatile.
- technomancy 12y agoYou have to pick your battles. That may be true, but unfortunately there's not much I can do about it; I've talked to a lot of people who were hesitant to buy an Ergodox when they saw the assembly instructions mentioned a magnifying glass and tweezers. In any case you can't get around the need for a soldering iron anyway in a kit that includes key switches.