A macro keyboard to improve application workflow by hardcoding macros, hotkeys, and shortcuts in a tiny keyboard. There is a mode button + OLED screen breakout that allows the user to add multiple macro profiles. A focus on backwards compatibility utilizing cheaper components and versatility was key so many USB input devices can be made cheaply. You can populate the board with a mix of rotary encoders, Cherry keys, or tactile switches. This keyboard was a built for hot-key Retropie commands in Raspberry Pi arcades.This PCB can be populated with up to 5 Cherry Mx Keys and 1 rotary encoders (or omit the encoders for 6 keys). An additional 2 key breakout board can be used (with a TRS cable) to locate 2 cherry keys in discrete location (like a foot pedal). In action here: https://youtu.be/HfOvEncG98M?t=264
Suggested Parts List:
| Qty | Description | DigiKey P/N | Notes |
|---|---|---|---|
| 1 | Arduino Pro Micro | ebay is cheaper | |
| 6 | Cherry Mx Switch | CH196-ND | Or any cherry compatible switch. RGB type are recommended |
| 6 | CHERRY MX KEYCAP | 1568-PRT-15306-ND | Clear keycap is recommended |
| 1 | Rotary Encoder w/ Switch | 987-1398-ND | Solder encoder jumpers to enable signal paths |
| 1 | Knob for Rotary shaft, 6mm dia | n/a just get it from ebay | optional |
| 1 | DIP PCB Mount 5 Pins 3.5mm Socket Headphone Stereo Audio Jack | CP1-3524NG-ND | optional |
| 1 | Resistor 330 OHM 1206 | RMCF1206JT330RCT-ND | for Addressable LED Data-in line |
| 7 | SK6812 MINI-E Addressable RGB LED 5V 3228 SMD | Aliexpress | solder "LED PWR" jumper if using addressable LEDs |
| 1 | SWITCH TACTILE SPST-NO 0.05A 12V (6x6mm) | 679-2443-ND | |
| 2 | 1x12 Header 0.1" pitch | S6100-ND | |
| 8 | Diode (OPTIONAL), small signal, SOD-123 | 1N4148W-13FDICT-ND | Solder Diode bypass jumpers if not using diodes. Diodes are optional |
