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2 layersCurrent limit switch, the printed circuit board in 3D

Current limit switch

atopile/hil29

Hardware-In-the-Loop (HiL ⛰️) for high-quality validation 🧪 everywhere 🚀

Copper layers
2
Thickness
1.6 mm
Parts
8
Nets
6
Pads
20
Tracks, vias
43, 7
Routed
Yes
KiCad
KiCad 9.0 (file 20241229)
Created
24 Jan 2025
Updated
22 May 2025

Overview

Current limit switch is an open-source printed circuit board by atopile, from the atopile/hil repository on GitHub, published under the MIT licence. It is a 2-layer board with 8 parts on 6 nets, routed with 43 tracks and 7 vias.

Its parts include 6 capacitors, 1 resistor and 1 IC.

README

README.md

Hardware Test 🧪 for Happy Engineers, PMs and CTOs

Hardware-in-the-Loop, or HiL (sometimes HitL), is a way to continuously validate your hardware and firmware together. By connecting actual hardware to virtual test scenarios, HiL enables thorough testing of embedded systems, control units, and firmware under realistic conditions without the risks and costs of full physical testing.

HiL testing catches integration issues early, accelerates development cycles, and ensures robust system performance before deployment. Typically the domain of the most sophisticated automotive and aerospace companies, this HiL suite is now for all 🚀.

Usage

If you haven't already, get atopile and run through the quickstart and tutorial.

This suite is intended to be used as a dependency on your project. So, create a new project (ato create project) and add this suite as a dependency (ato install https://github.com/atopile/hil)

Parts

8
QtyValueFootprintReferences
610µF ±10% 10V X5Ratopile:C0603-bd72f6C1, C2, C3, C4, C5, C6
1atopile:SOT-23-6_L2.9-W1.6-P0.95-LS2.8-BR-bfc73bU1
115kΩ ±1% 62.5mWatopile:R0402-56259eR1

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Questions

What parts does the Current limit switch use?

8 parts. 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 Current limit switch KiCad files?

From the atopile/hil repository on GitHub, at the commit this page was made from: the board is elec/layout/current-limit-switch/current-limit-switch.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.

Can I use the Current limit switch design in my own project?

Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).