NOTE: Rotary encoders and knobs are optional. But I recommend them. That is why they are in the main list.
Optional LED. Choose either backlight or per-switch (not both)
| # | Name | Quantity | Example URL |
|---|---|---|---|
| 18 | LED (backlight) WS2812B (for v1..v3) | 12 | https://aliexpress.ru/item/32774508291.html |
| 19 | LED (per switch) SK6812 MINI-E | 64 | https://aliexpress.ru/item/4000475685852.html |
Optional for I2C connection (instead of serial)
| # | Name | Quantity | Example URL |
|---|---|---|---|
| 20 | Resistor 4.7K (through hole or SMD) | 2 | https://aliexpress.ru/item/32882582185.html |
Optional OLED Screen
| # | Name | Quantity | Example URL |
|---|---|---|---|
| 21 | OLED screen (for v1..v3) | 2 | https://aliexpress.ru/item/32798439084.html |
| 22 | OLED screen (for v4) | 2 | https://aliexpress.ru/item/32896971385.html |
Optional power toggle switches. SW33 for battery, SW34 for OLED Screen and LEDs.
| # | Name | Quantity | Example URL |
|---|---|---|---|
| 23 | Side access toggle switch | 2-4 | https://aliexpress.ru/item/4001295557976.html |