4 layers12.1 × 8 mm
2 layers90 × 54.1 mm
SWIM Trigger
aksherap1/swim-electronicsThis repository contains code, documentation, and resources for ongoing projects in my research lab, focusing on PCB design, sensor integration, and embedded systems programming using C and C++. More information can be found in my gitlab which I linked down below.
- Size
- 90 × 54.1 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 26
- Nets
- 47
- Pads
- 89
- Tracks, vias
- 109, 96
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 20 Dec 2025
- Updated
- 20 Dec 2025
Overview
SWIM Trigger is an open-source printed circuit board by aksherap1, from the aksherap1/swim-electronics repository on GitHub. It is a 2-layer board of 90 × 54.1 mm with 26 parts on 47 nets, routed with 109 tracks and 96 vias.
It is built around the VSOP38338 and MMBT2222A-TP. Its parts include 9 resistors, 5 diodes, 4 transistors, 1 capacitor and 1 IC.
Main components
2Parts
26| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 160 | PCM_Resistor_SMD_AKL:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R1, R2, R4, R5 |
| 4 | 2.2k | PCM_Resistor_SMD_AKL:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R6, R7, R8, R9 |
| 4 | MMBT2222A-TP | PCM_Package_TO_SOT_SMD_AKL:SOT-23 | Q1, Q2, Q3, Q4 |
| 4 | Mounting Hole | MountingHole:MountingHole_2.5mm_Pad | H1, H2, H3, H4 |
| 4 | VUPN6340 | LED_THT:LED_D5.0mm | D1, D3, D4, D5 |
| 1 | 0.22uF | PCM_Capacitor_SMD_US_Handsoldering_AKL:C_0805_2012Metric_Pad1.18x1.45mm | C1 |
| 1 | 100 | PCM_Resistor_SMD_AKL:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R3 |
| 1 | RD100A | SWIM_Electronics_Lib:RD100 | D2 |
| 1 | SCIPP_Logo | SWIM_Electronics_Lib:SCIPP_Logo | H5 |
| 1 | VSOP383 | SWIM_Electronics_Lib:VSOP383 | U1 |
| 1 | ~ | SWIM_Electronics_Lib:SWIM_Interface | J1 |
Questions
How big is the SWIM Trigger PCB?
It measures 90 × 54.1 mm and has 2 copper layers, 1.6 mm thick.
What parts does the SWIM Trigger use?
26 parts, built around the VSOP38338 and MMBT2222A-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 SWIM Trigger KiCad files?
From the aksherap1/swim-electronics repository on GitHub, at the commit this page was made from: the board is SWIM_Trigger/SWIM-Trigger.kicad_pcb and its schematic SWIM_Trigger/SWIM-Trigger.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the SWIM Trigger design in my own project?
Its repository states no licence, so its author keeps all rights: ask aksherap1 before reusing the design.
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