Scroll wheel trackball
About the Scroll wheel trackball PCB
Scroll wheel trackball is an open source PCB design by sadekbaroudi, published on GitHub under the CERN-OHL-P-2.0 license. It is a 2-layer board measuring 64.8 × 63.5 mm, with 19 components from 13 distinct parts.
Other key parts include the AP7331-WG-7 and PMW3360DM-T2QU. By type, the board carries 6 resistors, 4 diodes, 3 capacitors, 2 ICs, 2 connectors and 1 switch.
From the project
This is a VIK module designed to mount a PER56 scroll ring, with a pwm3360 optical sensor for a trackball and optional WS2812B LEDs.
This is a VIK module designed to mount a PER56 scroll ring, with a pwm3360 optical sensor for a trackball and optional WS2812B LEDs.
For PCB fabrication, you can use the files in the production folder.
gerbers.zip - the file used to fabricate the pcb bom.csv - used for PCBA. You can also use the part numbers in this file to look up the exact parts as lcsc.com * positions.csv - used for PCBA
Main components on the Scroll wheel trackball
Scroll wheel trackball bill of materials (BOM)
19 components, 13 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | AP7331-WG-7 AP7335-WG-7 | SOT-23-5_HandSoldering | IC2 |
| 1 | PMW3360DM-T2QU | PMW3360 | U1 |
| 1 | C479750 ~ | vik-module-connector-horizontal | J1 |
| 1 | CONN_01X06_FEMALE Conn_01x06_Female | PinHeader_1x04_P2.54mm_Vertical | J2 |
| 1 | MountingHole | vik-module-mounting-large | H1 |
| 1 | RotaryEncoder | PERS56v3 | SW1 |
| 4 | WS2812B | LED_WS2812B_PLCC4_5.0x5.0mm_P3.2mm-reversible | D43, D44, D45, D46 |
| 1 | 4.7UF 4.7uF | C_0603_1608Metric | C1 |
| 2 | 1UF 1uF | C_0603_1608Metric | C4, C5 |
| 2 | 10K 10k | R_0603_1608Metric | R1, R6 |
| 1 | 39 | R_0603_1608Metric | R2 |
| 2 | 4.7K 4.7k | D3_TH_SMD | R3, R4 |
| 1 | 15K 15k | R_0603_1608Metric | R5 |
Scroll wheel trackball design files
The KiCad project lives in the sadekbaroudi/vik repository on GitHub; these links point at the commit this page was built from.
Scroll wheel trackball: common questions
How big is the Scroll wheel trackball PCB?
The Scroll wheel trackball measures 64.8 × 63.5 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Scroll wheel trackball?
19 components, from 13 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the Scroll wheel trackball design files?
From the sadekbaroudi/vik repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the Scroll wheel trackball design in my own project?
Yes, under the terms of its CERN-OHL-P-2.0 license, which sadekbaroudi chose for the repository.
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