Awesome
Sesame
<a href="https://ko-fi.com/kb_elmo"><img src="https://i.imgur.com/9T0bvqO.png" alt="kofibadge" align="right"/></a>
Alice like ergo keyboard using only THT parts
<img src="https://i.imgur.com/DNQMl8h.jpg" alt="drawing" width="800"/>Partslist
| Count | Part | Reference | LCSC Part # |
|---|---|---|---|
| 1 | ATmega32A 40 pin DIP (32L works too) | U1 | C12703 |
| 1 | 40 pin DIP socket (optional but highly recommended) | U1 | C2332 |
| 1 | USB4085-GF-A USB Type-C socket | USB1 | |
| 1 | 500 mA polyfuse | F1 | C207122 |
| 2 | 6mm momentary push buttons | Boot,Reset | C620202 |
| 1 | 16 MHz quartz crystal | XTAL1 | C16212 |
| 1 | 4.7 uF electrolytic capacitor | C1 | C47879 |
| 2 | 100 nF ceramic disk capacitor | C2,C3 | C254092 |
| 2 | 22 pF ceramic disk capacitor | C4,C5 | C254096 |
| 1 | 1.5 kΩ resistor | R1 | C58620 |
| 2 | 68 Ω resistor | R2,R3 | C714279 |
| 2 | 5.1 kΩ resistor | R4,R5 | C714593 |
| 1 | 10 kΩ resistor | R6 | C119347 |
| 2 | 3.6 V zener diode (DO-35 BZX55C3V6) | D1,D2 | C2508 |
| 66 | universal switching diode (DO-35 1N4148) | D3-D68 | C14516 |
The USB port can be found here:
https://www.digikey.com/en/products/detail/gct/USB4085-GF-A/9859733
<img src="https://i.imgur.com/5rSmcRD.png" alt="drawing" width="800"/> <img src="https://i.imgur.com/26DgXXG.png" alt="drawing" width="800"/>
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
