hackpad/hackpads/JoyKey

modified
2025-02-20T21:09:22-07:00

JoyKey

This is a small macropad that simultaneously acts as game controller and an entertainment device.

The name is inspired by the Nintendo JoyCon portmanteau (Joystick Controller) except I have replaced the 2nd word with "Keypad" (Joystick Keypad). See name ideas for other things I came up with.

My main repo were development will continue: https://github.com/techy-robot/JoyKey

Features

• Customizable macro pad using QMK firmware
• Game controller mimicking a joy-con
• Offline games that can be played on the display with no connections
• Small handheld size
• Linear keys

Approoved Parts BOM

• 8 Cherry mx Red keys with clear shell variant
• 8 Black keycaps
• 128x64 px SSD1306-based monochrome display near the top
• SEEED Xiao RP2040 (can be replaced later w/ SEEED xiao MG24 or nRF52840 Sense for BLE and other goodies)
• 12 Sk6812 Mini-E reverse mount RGB leds
• 3 M3x16 screws and M3 heatsets
• 12 1N4148 diodes. (I may get the 1N4148 W varient for SMD)

Extra Parts BOM

• 1 Analog PS2 Joystick (I already have)
• 1 EC12 encoder 8.5mm tall (flat volume dial on the side)
• AP2112K-3.3 Linear Regulator
• MCP73831-2-OT Lipo Battery Charger
• 4 10uf 0805 capacitors
• DMG3415 Sot23-3 PMOS
• 3 10k 0805 resistors
• 1 2k 0805 resistor
• 1 0603 LED

Pictures

Case

PCB

Bottom Top

Schematic