2 layers26.6 × 24.4 mm
2 layers26.6 × 24.4 mm
- Size
- 26.6 × 24.4 mm
- Copper layers
- 2
- Thickness
- 1 mm
- Parts
- 18
- Nets
- 15
- Pads
- 61
- Tracks, vias
- 193, 23
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 3 Oct 2025
- Updated
- 26 Nov 2025
Overview
Trackball is an open-source printed circuit board by Modulable-Keyboard-Developer, from the Modulable-Keyboard-Developer/public-data repository on GitHub, published under the CERN-OHL-W-2.0 licence. It is a 2-layer board of 26.6 × 24.4 mm with 18 parts on 15 nets, routed with 193 tracks and 23 vias.
It is built around the TLV74318PDBVR-TP. Its parts include 9 capacitors, 2 ICs, 2 connectors and 1 resistor. It belongs with the keyboards and input boards of this library.
Main components
1Parts
18| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | MountingHole | kbd_Hole:m2_Screw_Hole | H1, H2, H3, H4 |
| 2 | 100nF | Capacitor_SMD:C_0603_1608Metric | C2, C3 |
| 2 | 1uF | Capacitor_SMD:C_0603_1608Metric | C8, C9 |
| 2 | Conn_01x06_Socket | Connector_FFC-FPC:Hirose_FH12-6S-0.5SH_1x06-1MP_P0.50mm_Horizontal | J3, J4 |
| 1 | 100nF X7R | Capacitor_SMD:C_0603_1608Metric | C4 |
| 1 | 10k | Resistor_SMD:R_0603_1608Metric | R1 |
| 1 | 10nF | Capacitor_SMD:C_0603_1608Metric | C5 |
| 1 | 10nF X7R | Capacitor_SMD:C_0603_1608Metric | C7 |
| 1 | 10uF X7R | Capacitor_SMD:C_0603_1608Metric | C6 |
| 1 | 3.3uF/16V | Capacitor_SMD:C_0603_1608Metric | C1 |
| 1 | PMW3610 | Sekitei:PMW3610DM-SUDU 16Pin | U3 |
| 1 | TLV74318PDBVR | Package_TO_SOT_SMD:SOT-23-5_HandSoldering | U2 |
Questions
How big is the Trackball PCB?
It measures 26.6 × 24.4 mm and has 2 copper layers, 1 mm thick.
What parts does the Trackball use?
18 parts, built around the TLV74318PDBVR-TP. 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 Trackball KiCad files?
From the Modulable-Keyboard-Developer/public-data repository on GitHub, at the commit this page was made from: the board is electrical_data/TB/Trackball.kicad_pcb and its schematic electrical_data/AS/Encoder_Joystick.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Trackball design in my own project?
Its repository publishes it under the CERN-OHL-W-2.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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