Geki pico
whowechina·geki_pico·PCB/main/geki_main.kicad_pcb
About the Geki pico PCB
Geki pico is an open source PCB design by whowechina, published on GitHub. It is a 2-layer board measuring 268 × 88.6 mm, with 89 components from 25 distinct parts.
Other key parts include the PiPico, LM4040DBZ-3, 8002A, SS49E and DC/DC. By type, the board carries 38 diodes, 17 capacitors, 8 switches, 8 resistors, 7 ICs and 1 inductor.
From the project
Ongeki Style Controller
Features: It's small but closely replicates the feel of the arcade controller. Smooth lever action with adjustable resistance. Air WAD with sound feedback. IO4 emulation. Built-in AIME card reader. Command line for configurations. * All source files open.
Thanks to many respectful guys/companies who made their tools or materials free or open source (KiCad, OnShape, InkScape, Raspberry things).

Main components on the Geki pico
Geki pico bill of materials (BOM)
89 components, 25 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | PiPico | RPi_Pico_SMD_Pins | U1 |
| 1 | LM4040DBZ-3 | SOT-23 | U2 |
| 2 | 8002A | SO-8_3.9x4.9mm_P1.27mm | U3, U4 |
| 1 | SS49E | SS49E_Bend | U5 |
| 1 | DC/DC | DCDC_3to5 | U6 |
| 1 | HT7750A | SOT-23-5_HandSoldering | U7 |
| 2 | Conn_01x06 | 8002A_TAP | AMP1, AMP2 |
| 1 | Conn_01x04 | PinHeader_1x04_P2.54mm_Vertical | PN532 |
| 2 | Conn_01x02 | Solder_2P | SPK1, SPK2 |
| 8 | SW_DIP_x01 | SW_Kailh_Choc_V1V2_1.00u_LED | SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8 |
| 4 | Conn_01x04 | SH1.0_4P_Solder_Combo | TOF1, TOF2, TOF3, TOF4 |
| 1 | U262-161N-4BVC11 | HRO-TYPE-C-31-M-12-Assembly | USB1 |
| 2 | WS2812B_Unified | WS2812B-2835 | D1, D37 |
| 6 | WS2812B_Unified | WS2812B-4020 | D2, D3, D4, D34, D35, D36 |
| 29 | WS2812B_Unified | WS2812B-4020_UP | D5, D6, D7, D8, D9, D10, D11, D12 +21 |
| 1 | SS14 | D_1206_3216Metric_Pad1.42x1.75mm_HandSolder | D38 |
| 1 | 22uH | L_Changjiang_FNR5020S | L1 |
| 10 | 1uF | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C1, C2, C3, C4, C5, C6, C7, C8 +2 |
| 2 | 0.1uF | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C9, C10 |
| 1 | 1nF | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C13 |
Show 5 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | 22uF | C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C14, C15 |
| 2 | 10uF | CP_Elec_6.3x3 | C16, C17 |
| 2 | 5K1 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R1, R2 |
| 3 | 10K | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R4, R6, R8 |
| 3 | 20K | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R5, R7, R9 |
Geki pico design files
The KiCad project lives in the whowechina/geki_pico repository on GitHub; these links point at the commit this page was built from.
- LayoutPCB/main/geki_main.kicad_pcb
- SchematicPCB/main/geki_main.kicad_sch
Geki pico: common questions
How big is the Geki pico PCB?
The Geki pico measures 268 × 88.6 mm, has 2 copper layers and is 1.7 mm thick.
How many components are on the Geki pico?
89 components, from 25 distinct parts. The full bill of materials is listed on this page.
Where can I download the Geki pico design files?
From the whowechina/geki_pico repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Geki pico design in my own project?
The repository has no license, so all rights stay with whowechina. Use it as a reference, and ask the author before reusing the design.