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2 layers176 × 161 mmPanel, the printed circuit board in 3D

Panel

afonsus1997/Bongo-Cat-Fidget-Toy14

A simple and satisfying electronic fidget toy featuring Bongo Cat. Track your taps, measure your speed, and toggle display options with intuitive controls.

Full screenGitHub.kicad_pcb
Size
176 × 161 mm
Copper layers
2
Thickness
1.6 mm
Parts
405
Nets
588
Pads
1,701
Tracks, vias
3,468, 1,308
Pours
16
Routed
Yes
KiCad
KiCad 10.0 (file 20260206)
Created
25 Apr 2024
Updated
5 May 2026

Overview

Panel is an open-source printed circuit board by afonsus1997, from the afonsus1997/Bongo-Cat-Fidget-Toy repository on GitHub. It is a 2-layer board of 176 × 161 mm with 405 parts on 588 nets, routed with 3,468 tracks and 1,308 vias.

It is built around the TPS63802DLAR. Its parts include 132 capacitors, 108 resistors, 36 switches, 24 ICs and 24 connectors. It belongs with the STM32 boards of this library.

Main components

1

README

README.md

Bongo Cat Fidget Toy

Demo 1 Demo 2

Build Hardware License: CC BY-NC-SA 4.0 Firmware License: GPL v3 Latest Release Last Commit

A simple and satisfying electronic fidget toy featuring Bongo Cat. Track your taps, measure your speed, and toggle display options with intuitive controls.

I sell on Tindie

Now available on Tindie!

Features

  • Tap counter with automatic saving to persistent memory
  • Tap speed measurement
  • Milestones
  • Sleep animation
  • Optional overlay display

Instructions

Power

  • Requires a single CR2032 battery (positive side up)

In-Use Controls

  • Hold both buttons to enable or disable the overlay

Power-On Modes

  • Hold the right button while powering on to enter reset mode

    An additional press is required to confirm

  • Hold both buttons while powering on to display the credits

Gallery

Credits

AI Disclaimer

All hardware design, firmware, and software in this project were developed by hand. No AI tools were used for circuit design, PCB layout, firmware architecture, code logic, or image/asset generation. AI assistance was limited to aiding software development debugging and porting efforts.

Parts

405
QtyValueFootprintReferences
602.2uFCapacitor_SMD:C_0603_1608MetricC10, C10, C10, C10, C10, C10, C10, C10, C10, C10, C10, C10, C11, C11, C11, C11 +44
6091kResistor_SMD:R_0603_1608MetricR1, R1, R1, R1, R1, R1, R1, R1, R1, R1, R1, R1, R101, R101, R101, R101 +44
36FiducialFiducial:Fiducial_0.5mm_Mask1.5mmFID1, FID1, FID1, FID1, FID1, FID1, FID1, FID1, FID1, FID1, FID1, FID1, FID2, FID2, FID2, FID2 +20
24100nFCapacitor_SMD:C_0603_1608MetricC3, C3, C3, C3, C3, C3, C3, C3, C3, C3, C3, C3, C5, C5, C5, C5 +8
2422uFCapacitor_SMD:C_0603_1608MetricC1, C1, C1, C1, C1, C1, C1, C1, C1, C1, C1, C1, C2, C2, C2, C2 +8
244.7kResistor_SMD:R_0603_1608MetricR12, R12, R12, R12, R12, R12, R12, R12, R12, R12, R12, R12, R13, R13, R13, R13 +8
244.7uFCapacitor_SMD:C_0603_1608MetricC4, C4, C4, C4, C12, C12, C12, C12, C12, C12, C12, C12, C12, C12, C12, C12 +8
24SW_PushPCM_Switch_Keyboard_Kailh:SW_Kailh_Choc_V1_1.00uSW1, SW1, SW1, SW1, SW1, SW1, SW1, SW1, SW1, SW1, SW1, SW1, SW2, SW2, SW2, SW2 +8
120.47uHInductor_SMD_Wurth:L_Wurth_WE-LQSH-2010L102, L102, L102, L102, L102, L102, L102, L102, L102, L102, L102, L102
12390kResistor_SMD:R_0603_1608MetricR11, R11, R11, R11, R11, R11, R11, R11, R11, R11, R11, R11
12511kResistor_SMD:R_0603_1608MetricR6, R6, R6, R6, R6, R6, R6, R6, R6, R6, R6, R6
12BatteryBongo-Cat-Fidget-Toy:BAT-TH_CR2032-BS-6-1BT1, BT1, BT1, BT1, BT1, BT1, BT1, BT1, BT1, BT1, BT1, BT1
12Conn_ARM_SWD_TagConnect_TC2030-NLConnector:Tag-Connect_TC2030-IDC-NL_2x03_P1.27mm_VerticalJ4, J4, J4, J4, J4, J4, J4, J4, J4, J4, J4, J4
12LOGOLOGOG***, G***, G***, G***, G***, G***, G***, G***, G***, G***, G***, G***
12LYA130BG30-128064Bongo-Cat-Fidget-Toy:sh1106-1.3inch-oled_smallJ1, J1, J1, J1, J1, J1, J1, J1, J1, J1, J1, J1
12STM32G030K8TxPackage_QFP:LQFP-32_7x7mm_P0.8mmU1, U1, U1, U1, U1, U1, U1, U1, U1, U1, U1, U1
12SW_SPDT_321Bongo-Cat-Fidget-Toy:SW-SMD_SK-3245S-L1-A-1SW5, SW5, SW5, SW5, SW5, SW5, SW5, SW5, SW5, SW5, SW5, SW5
12TPS63802DLARBongo-Cat-Fidget-Toy:VREG_TPS63802DLARU101, U101, U101, U101, U101, U101, U101, U101, U101, U101, U101, U101
6FiducialFiducialKiKit_FID_B_1, KiKit_FID_B_2, KiKit_FID_B_3, KiKit_FID_T_1, KiKit_FID_T_2, KiKit_FID_T_3
3NPTHNPTHKiKit_TO_1, KiKit_TO_2, KiKit_TO_3

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Questions

How big is the Panel PCB?

It measures 176 × 161 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Panel use?

405 parts, built around the TPS63802DLAR. 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 Panel KiCad files?

From the afonsus1997/Bongo-Cat-Fidget-Toy repository on GitHub, at the commit this page was made from: the board is Hardware/Bongo-Cat-Fidget-Toy-panel/panel.kicad_pcb and its schematic Hardware/Bongo-Cat-Fidget-Toy-Lite/Bongo-Cat-Fidget-Toy-Lite/Bongo-Cat-Fidget-Toy-Lite.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Panel design in my own project?

Its repository states no licence, so its author keeps all rights: ask afonsus1997 before reusing the design.