silly little macropad

features

• 10 hotswappable mx switches
• 128x32px oled display
• rotary encoder
• usb c
• scriptable and extensible firmware (coming soon)
• the silly caracal
  
  
  

Parts list

Part	Quantity	Est. price	Example link
RP2040	1	$1.01	LCSC
USB-C port	1	$0.16	LCSC
SSD1306 128x32 OLED board	1	$4.00	42. Keebs
EC11 Rotary encoder	1	$2.00	LCSC
Kailh MX Hotswap sockets	10	$3.00	Mechboards
MX Compatible switches	10	~$10.00	bring your favourite ✨
SOIC 208-mil SPI flash1	1	$0.56	LCSC
SMD3225 12MHz Crystal oscillator	1	$0.06	LCSC
3.9x2.9mm SMD Switch	1	$0.11	LCSC
SOT-89 3.3v Voltage regulator	1	$0.05	LCSC
27.4Ω Resistors2	2	< $0.00	LCSC
1kΩ Resistors2	2	< $0.00	LCSC
5.1kΩ Resistors2	2	< $0.00	LCSC
27pF Capacitors2	2	< $0.00	LCSC
100nF Capacitors2	10	< $0.00	LCSC
1uF Capacitors2	2	< $0.00	LCSC
10uF Capacitors2	2	< $0.00	LCSC

Credits

Brought to you by Alex T and Gosha T ❤️
This work is licensed under Creative Commons BY-NC-SA 4.0

Footnotes

1. The firmware is ~36KB for a release build. We use 16MB flash. ↩

2. All resistors and capacitors are 0402. ↩ ↩² ↩³ ↩⁴ ↩⁵ ↩⁶ ↩⁷