Sidecar Numberpad
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A QMK based sidecar numberpad with a knob and media controls
- Ocena
- 0 / 5
- Polubienia
- 0
- Pobrania
- 9
- Wydruki
- 0
- Wyświetlenia
- 66
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- 0
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Informacje o modelu
- Źródło
- Printables
- Kategoria
- Computers
- Licencja
- Creative Commons — Attribution — Noncommercial
This project is a standalone keyboard that is controlled with QMK firmware. This assumes you have soldering experience and a basic knowledge of keyboard handwiring and firmware flashing. Message me for more detailed assembly instructions :)
Parts and Materials
Item | Quantity | Link |
|---|---|---|
Cherry-style key switches | 19 | |
2.0U Keycap stabilisers | 3 | https://www.aliexpress.com/item/1005007349112708.html#nav-specification |
ATmega34U2 Pro Micro with USB-C | 1 | |
IN4148 Diodes | 20 | |
EC11 Rotary encoder with button | 1 | |
Encoder knob | 1 | |
6mm M2 Socket screws | 4 | |
Rubber adhesive feet | 1 | |
3mm M2 Threaded inserts | 4 | |
22AWG Insulated wire | ||
Keycap set |
Assembly Instructiuons
Before beginning assembly, flash the HEX file to the Pro-Micro using QMK toolbox. Using the included key tester in the app jump all the pins shown later in this guide to test functionality. Some things to note are that you must short RESET and GROUND twice to enter bootloaded mode, QMK toolbox will show show that the device is recognised when this works. Other reasons why issues arise are that you are using a power-only USB-C cable, you selected the wrong chip in QMK, or you did not correctly enter bootloader mode. This is the guide I used.
Print the face and body pieces, sink the threaded inserts into the holes on the back of the front panel, and then install the keycaps and stabilisers.
Solder the diodes in a row to column direction. Note that the side of the encoder with the two legs supports the push button. Ensure that the 'tall' keys are connected to the correct rows as depicted in this picture.
Solder the remaining columns according to the picture.
Solder 13 leads from the pro micro which will connect to the rows columns, and encoder. The left leg of the encoder (in the image above) connects to pin A0, middle leg goes to ground, and right goes to A1. The columns (left to right) connect to 15, 14, 16, 10. The rows (top to bottom) connect to 4, 5, 6, 7, 8, 9.
Screw the base onto the front frame and then attatch the ruber anti-slip feet.