Reverse polarity 08
About the Reverse polarity 08 PCB
Reverse polarity 08 is an open source PCB design by matjutras, published on GitHub. It is a 2-layer board measuring 8.2 × 9.9 mm, with 5 components from 5 distinct parts.
By type, the board carries 2 resistors, 1 transistor, 1 connector and 1 diode.
It belongs with the test & measurement designs in this gallery.
From the project
Educational electronics trainer: auto-generated schematics and 3D PCB views where you find an injected fault using a simulated multimeter, backed by real KiCad imports and ngspice simulation.
See CLAUDE.md for architecture and conventions.
Requires ngspice on PATH (sudo apt-get install ngspice) and kicad for kicad-cli (sudo apt-get install kicad).
map.json and faults.json under each devices//` are generated, not committed (see CLAUDE.md) — after a fresh checkout, regenerate them once per device:
Reverse polarity 08 bill of materials (BOM)
5 components, 5 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | AO3401A | SOT-23 | Q1 |
| 1 | 1 x 3 pin header | PinHeader_1x03_P2.54mm_Vertical | J1 |
| 1 | RED | LED_0603_1608Metric | D1 |
| 1 | 100 kΩ | R_0603_1608Metric | R1 |
| 1 | 15 kΩ | R_0402_1005Metric | R2 |
Reverse polarity 08 design files
The KiCad project lives in the matjutras/faultfinder repository on GitHub; these links point at the commit this page was built from.
Reverse polarity 08: common questions
How big is the Reverse polarity 08 PCB?
The Reverse polarity 08 measures 8.2 × 9.9 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Reverse polarity 08?
5 components, from 5 distinct parts. The full bill of materials is listed on this page.
Where can I download the Reverse polarity 08 design files?
From the matjutras/faultfinder repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Reverse polarity 08 design in my own project?
The repository has no license, so all rights stay with matjutras. Use it as a reference, and ask the author before reusing the design.
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