threeboard
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| threeboard | docs | |
|---|---|---|
| 5 | 4 | |
| 105 | 161 | |
| - | 0.6% | |
| 0.0 | 0.0 | |
| almost 2 years ago | over 5 years ago | |
| C++ | ||
| - | - |
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threeboard
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Show HN: Threeboard – a full-size mechanical USB keyboard with only three keys
I tried to give a bit of an overview of this in the 'hardware design' section of the documentation [0]. It has some external links to further documentation and tutorials in it too. But the learning curve is very steep.
I'd maybe suggest looking for an electrical engineering intro book or course at a level you feel comfortable with, just to get an idea of the basics.
For the ErgoDox keyboard, the schematic is actually available on their own repo [1], but it's going to look quite intimidating initially. But I found a pretty great looking article explaining the electrical design of the ErgoDox that you might find useful [2].
[0]: https://github.com/taylorconor/threeboard/blob/master/docume...
- Threeboard: A fully-functional open source and open hardware mechanical USB keyboard with only three keys!
docs
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USB inventor explains why the connector was not designed to be reversible
Most of this is just cheap design on part of the ergomech community. It's not that hard to add some protection. E.g. some keyboards use a Schottky diode on VCC for reverse polarity protection and ESD protection diodes to protect the data lines:
https://github.com/zsa/docs/blob/master/Ergodox%20V5-L.pdf
- Show HN: Threeboard – a full-size mechanical USB keyboard with only three keys
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A lot of comments on the keyboard, so here’s a closer shot. Description in comments.
Check out ErgoDox EZ @ [Their Website](www.ergodox-ez.com)
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Sculpted Keycaps How To Put Back On Correctly
You can find 'blank keycaps layout' pdf file in this repo https://github.com/zsa/docs
What are some alternatives?
modm - modm: a C++23 library generator for AVR and ARM Cortex-M devices
duckduckgo-locales - Translation files for <a href="https://duckduckgo.com"> </a>
MiniCore - Arduino hardware package for ATmega8, ATmega48, ATmega88, ATmega168, ATmega328 and ATmega328PB
Marlin - Marlin is an optimized firmware for RepRap 3D printers based on the Arduino platform. Many commercial 3D printers come with Marlin installed. Check with your vendor if you need source code for your specific machine.
EmbeddedProto - Embedded Proto is a C++ Protocol Buffers implementation specifically suitable for microcontrollers. It is small, reliable and easy to use.
keyboard-firmware - Keyboard firmware for Teensy 3.2 and Teensy LC