2 layers140.5 × 30 mm
Type e
google/mozc-devices
Circuit diagrams and firmware source code for Gboard DIY keyboards
16 parts3kApache-2.0
2 layers90.3 × 39.1 mm
Fidget
obobed/treeboard2a pcb with switches that you can fidget with
- Size
- 90.3 × 39.1 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 16
- Nets
- 23
- Pads
- 64
- Tracks, vias
- 48, 5
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 28 Jun 2025
- Updated
- 8 Jul 2025
Overview
Fidget is an open-source printed circuit board by obobed, from the obobed/treeboard repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 90.3 × 39.1 mm with 16 parts on 23 nets, routed with 48 tracks and 5 vias.
Its parts include 4 resistors, 4 diodes, 4 switches and 1 IC. It belongs with the RP2040 boards of this library.
README
README.mdTreeboard
A PCB that you can use to play minigames with 4 LEDs, 4 Cherry MX switches and a XIAO RP2040.
Game Modes
Reaction Tester
- Start: Hold the top left button for 3 seconds (the LEDs will slowly light up as you hold it)
- How to Play: An LED will turn on within 5 seconds, and you have to press the corresponding button as fast as possible.
Duel
- Start: Hold the top right button for 3 seconds (the LEDs will slowly light up as you hold it)
- Players
- Player 1 uses the left buttons and LEDs
- Player 2 uses the right buttons and LEDs
- How to Play
- Hold the PCB horizontally
- A mirrored LED pair will light up (eg the top left and top right)
- The first person who presses that switch wins and whoever gets to 5 wins first has their LEDs flash as celebration
Memory Game
- Start: Hold the bottom left button for 3 seconds (the LEDs will slowly light up as you hold it)
- How to Play
- The LEDs flash a sequence that you have to exactly recreate with the buttons
- Each time you succeed, the length of the sequence increases
- If you fail, the LEDs turn on and off 2 times, and if you win, they turn on one by one.
Binary
- Start: Hold the bottom right button for 3 seconds (the LEDs will slowly light up as you hold it)
- How to Play
- The LEDs will show a binary number for 5 seconds
- When they turn off, you have to input that value using the keyboard
- Pressing the top left button adds 1
- Pressing the top right button adds 5
- Pressing the bottom left button subtracts 1
- To submit your number, hold the bottom right button for 2 seconds
- If you got it correct, the LEDs will all flash twice
- If you got it wrong, they will flash one by one 2 times
Other features
Idle
After 30 seconds with no input, the LEDs will play a slow idle animation
Files
To program the XIAO RP2040, follow this guide and open this file in the Arduino IDE.
Schematic
PCB
BOM
- 4 Cherry MX switches
- 4 LEDs
- 4 Resistors
- 1 XIAO RP2040
made by @obob on the Hack Club Slack for the Pathfinder YSWS!
Parts
16| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | L08R5000Q1 | general:LEDRD254W57D500H1070_3d | D1, D2, D3, D4 |
| 4 | R | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal | R1, R2, R3, R4 |
| 4 | SW_Push | general:SW_Cherry_MX_1.00u_PCB | SW1, SW2, SW3, SW4 |
| 3 | LOGO | LOGO | G***, G***, G*** |
| 1 | XIAO-RP2040-DIP | general:XIAO-RP2040-DIP | U1 |
Questions
How big is the Fidget PCB?
It measures 90.3 × 39.1 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Fidget use?
16 parts. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Fidget KiCad files?
From the obobed/treeboard repository on GitHub, at the commit this page was made from: the board is kicad/fidget.kicad_pcb and its schematic kicad/fidget.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Fidget design in my own project?
Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
Similar boards
- 2 layers41.4 × 14.5 mm
U2f zero
conorpp/u2f-zero
U2F USB token optimized for physical security, affordability, and style
16 parts2.4k - 2 layers77.5 × 33.7 mm
Breakout 72pin 1123038-2-Connector
rusefi/rusefi
rusefi - GPL internal combustion engine control unit
16 parts1.2k - 2 layers122 × 37 mm
V0-UmbilicalBoard
VoronDesign/Voron-Hardware
Cool Hardware designed by the Voron Design group
16 parts1.1kGPL-3.0 - 2 layers152 × 57.6 mm
Videoslotadapter
hoglet67/RGBtoHDMI
Bare-metal Raspberry Pi project that provides pixel-perfect sampling of Retro Computer RGB/YUV video and conversion to HDMI
16 parts1kGPL-3.0 - 2 layers36 × 63.4 mm
Smart ringfinal layout
hackclub/OnBoard
💡 Join 1,000 teenagers and make your first PCB with a $100 grant!
16 parts915 - 2 layers60 × 40 mm
- 2 layers21.1 × 26.9 mm
