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2 layers66.8 × 88.1 mmCar inputs, the printed circuit board in 3D

This repository contains all of my source code for my weekly and final project of the "How to Make (Almost) Anything" class at MIT (Fall 26).

Size
66.8 × 88.1 mm
Copper layers
2
Thickness
1.6 mm
Parts
23
Nets
34
Pads
101
Tracks, vias
142, 8
Routed
Yes
KiCad
KiCad 10.0 (file 20260206)
Created
25 Sep 2026
Updated
7 Nov 2026

Overview

Car inputs is an open-source printed circuit board by alexandre-bismuth, from the alexandre-bismuth/htmaa_source_code repository on GitHub. It is a 2-layer board of 66.8 × 88.1 mm with 23 parts on 34 nets, routed with 142 tracks and 8 vias.

Its parts include 10 resistors, 6 diodes and 6 connectors. It belongs with the RP2040 boards of this library.

README

README.md

HTMAA F26 Source Code

Welcome!

This repository contains all of my source code for my weekly and final project of the "How to Make (Almost) Anything" class at MIT (Fall 26). It is organized per week, and is meant to be a collection of the entirety of the code written during this class.

For reference, you may want to visit the class website as well as my personal website for the class!

Parts

23
QtyValueFootprintReferences
10R_1206PCM_fab:R_1206R1, R2, R3, R4, R5, R6, R7, R8, R9, R10
6LED_1206PCM_fab:LED_1206D1, D2, D3, D4, D5, D6
3Conn_Header_JST_PH_1x04_P2mm_Vertical_SMDPCM_fab:Header_JST_PH_1x04_P2mm_Vertical_SMDJ2, J3, J4
2Conn_Header_JST_PH_1x03_P2mm_Vertical_SMDPCM_fab:Header_JST_PH_1x03_P2mm_Vertical_SMDJ5, J6
1Conn_01x05_PinConn_Header_JST_PH_1x05_P2mm_Vertical_SMDConnector_JST:JST_PH_B5B-PH-SM4-TB_1x05-1MP_P2.00mm_VerticalJ1
1Module_XIAO-RP2040PCM_fab:SeeedStudio_XIAO_RP2040M1

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Questions

How big is the Car inputs PCB?

It measures 66.8 × 88.1 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Car inputs use?

23 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 Car inputs KiCad files?

From the alexandre-bismuth/htmaa_source_code repository on GitHub, at the commit this page was made from: the board is electronics_design/kicad/car_inputs.kicad_pcb and its schematic electronics_design/kicad/car_inputs.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Car inputs design in my own project?

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