2 layers

ChargingPCB26(THT)

This repository contains all of the KiCad Schematics for the 2026 TigerRacing Formula SAE's Electronics Subsystem.

Copper layers: 2
Thickness: 1.6 mm
Parts: 46
Nets: 46
Pads: 145
Tracks, vias: 95, 2
Routed: Yes
KiCad: KiCad 9.0 (file 20241229)
Created: 21 Jun 2025
Updated: 21 Oct 2026

Overview

ChargingPCB26(THT) is an open-source printed circuit board by LSUTigerRacing, from the LSUTigerRacing/Electronics repository on GitHub. It is a 2-layer board with 46 parts on 46 nets, routed with 95 tracks and 2 vias.

It is built around the SFH615A-1XSM, SN74HC00N and SN74LS279AN, with the L7805CP, MFR-25FBF52-1K and MFR-25FRF52-100K among its other parts. Its parts include 18 resistors, 8 transistors, 6 capacitors, 5 ICs and 4 diodes.

Main components

README

README.md

This repository contains all of the KiCad Schematics for the TigerRacing Formula SAE's Electronics Subsystem.

Prerequisites

Git
KiCad
A GitHub account

Board Templates

When making a new PCB, if the board is to be manufactured by JLCPCB. import the corresponding board constraints from Board Templates/JLC

Getting Started

This section will walk you through downloading the repository to your computer for the first time. You only need to do this once.

1. Generate a GitHub Token

A token is essentially a password that lets Git on your computer talk to GitHub securely.

Log into GitHub
Click your profile picture → Settings
Scroll down and click Developer settings (bottom of the left sidebar)
Click Personal access tokens → Tokens (classic)
Click Generate new token (classic)
Give it a name (e.g. git-access), set an expiration, and check the repo scope
Click Generate token and copy it — you won't be able to see it again!

2. Clone the Repository

"Cloning" means downloading a full copy of the repository to your computer.

Open Git Bash and run the following commands one at a time:

git clone https://github.com/LSUTigerRacing/Electronics.git
cd Electronics

When prompted for a password, paste the token you copied in the previous step.

3. Open the Project in KiCad

In Git Bash, highlight and right-click Electronics to open the folder in File Explorer. From there, open the KiCad project file (.kicad_pro).

Contributing

This section covers the full workflow for making changes and submitting them every time you work on something.

[!IMPORTANT] Never commit directly to main. All changes must go through a pull request.

Step 1 — Make sure you're up to date

Before starting any work, pull the latest changes from the repository so you're not working on an outdated copy.

cd Electronics
git pull origin main

Step 2 — Create a branch

A "branch" is your own isolated workspace. Think of it like making a photocopy of the project — you make your edits on the copy, and only merge it back once everything looks good.

Replace your-branch-name with something descriptive (e.g. fault-latch-rework).

git checkout -b "your-branch-name"

Step 3 — Make your edits

Open the KiCad project and make your changes. Save your work when done.

Step 4 — Stage and commit your changes

"Staging" tells Git which files to include, and "committing" saves a snapshot of those changes with a description.

git add .
git commit -m "Brief description of what you changed"

Step 5 — Push your branch to GitHub

"Pushing" uploads your local branch so others (and GitHub) can see it.

git push -u origin "your-branch-name"

Step 6 — Open a Pull Request

Go to the repository on GitHub
Click the Pull requests tab
Click New pull request
Set the base branch to main and the compare branch to yours
Give it a clear title and description of what you changed
Click Create pull request

A reviewer will look over your changes. Once approved, your branch will be merged into main and can then be deleted.

PCB Gallery

Fault Latch

FaultLatch

Parts

Qty	Value	Footprint	References
6	1k	Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal	R6, R7, R108, R109, R111, R113
4	100k	Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal	R103, R104, R110, R112
4	10k	Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal	R1, R2, R105, R106
4	NMOS	Package_TO_SOT_THT:TO-251-3_Vertical	Q1, Q2, Q3, Q4
4	Q_NPN_BEC	Package_TO_SOT_THT:TO-92	Q103, Q104, Q105, Q106
3	0.01u	Capacitor_THT:CP_Radial_D5.0mm_P2.50mm	C101, C102, C106
2	100n	Capacitor_THT:CP_Radial_D5.0mm_P2.50mm	C3, C117
2	2.2k	Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal	R5, R101
2	270	Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal	R3, R4
2	D_Schottky	Diode_THT:D_DO-201AD_P12.70mm_Horizontal	D101, D102
2	LED	LED_THT:LED_D3.0mm	D1, D2
2	Relay_SPDT_Omron_G2RL-1	Relay_THT:Relay_SPDT_Omron_G2RL-1	K101, K102
2	SFH617A-1	Package_DIP:DIP-4_W7.62mm	U1, U2
2	SW_Omron_B3FS	Button_Switch_THT:SW_PUSH_6mm_H4.3mm	SW101, SW102
1	0.33u	Capacitor_THT:CP_Radial_D5.0mm_P2.50mm	C105
1	74HC00	Package_DIP:DIP-14_W7.62mm	U6
1	74LS279	Package_DIP:DIP-16_W7.62mm	U5
1	LM7805_TO220	Package_TO_SOT_THT:TO-220-3_Vertical	U107
1	Molex6pin	Connector_Molex:Molex_Mini-Fit_Jr_5566-06A_2x03_P4.20mm_Vertical	J1

Questions

What parts does the ChargingPCB26(THT) use?

46 parts, built around the SFH615A-1XSM, SN74HC00N, SN74LS279AN and L7805CP. 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 ChargingPCB26(THT) KiCad files?

From the LSUTigerRacing/Electronics repository on GitHub, at the commit this page was made from: the board is Charging_PCB/Charging_26/ChargingPCB26(THT Testing Only)/ChargingPCB26(THT).kicad_pcb. PCBKit opens the board in the browser, with nothing to install.

Can I use the ChargingPCB26(THT) design in my own project?

Its repository states no licence, so its author keeps all rights: ask LSUTigerRacing before reusing the design.

Topics

fsae kicad pcb

Project files

Show this board on your page

A live frame, for any web page

<iframe src="https://pcbkit.io/embed/boards/lsutigerracing-electronics-chargingpcb26-tht" title="ChargingPCB26(THT) in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe>

A picture

<img src="https://pcbkit.io/embed/boards/lsutigerracing-electronics-chargingpcb26-tht.jpg" alt="ChargingPCB26(THT)" width="1200" height="900">

A picture that opens the board, for a README

[![ChargingPCB26(THT)](https://pcbkit.io/embed/boards/lsutigerracing-electronics-chargingpcb26-tht.jpg?size=s)](https://pcbkit.io/boards/lsutigerracing-electronics-chargingpcb26-tht)

Source

Repository: LSUTigerRacing/Electronics
Board file: Charging_PCB/Charging_26/ChargingPCB26(THT Testing Only)/ChargingPCB26(THT).kicad_pcb
Commit: d48582b
Homepage: formulalsu.org
Licence: Not stated

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