Adafruit LM4040
About the Adafruit LM4040 PCB
Adafruit LM4040 is an open source PCB design by humancomputerintegration, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 16 × 19 mm, with 8 components from 6 distinct parts.
By type, the board carries 4 resistors, 2 diodes, 1 IC and 1 jumper.
From the project
ProtoPCB Code and Evaluation Files
This repository contains our tests, evaluation files, and software tool (ProtoPCB) presented in the paper "ProtoPCB: Reclaiming Printed Circuit Board E-waste as Prototyping Material", which will appear at CHI2025. This tool was built by Jasmine Lu (@xjasminelu), Sai Rishitha Boddu (@rishiboddu) with project assistance from Pedro Lopes at the University of Chicago's Human Computer Integration Lab.
Adafruit LM4040 bill of materials (BOM)
8 components, 6 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | — | ADAFRUIT_5MM | U$5 |
| 1 | — | 1X04_ROUND | JP1 |
| 1 | LM4040AIM3-2.0/NOPB | SOT23-R | D1 |
| 1 | LM4040AIM3-4.1/NOPB | SOT23-R | D2 |
| 2 | 750 | 0805-NO | R1, R2 |
| 2 | 10K | 0805-NO | R3, R4 |
Adafruit LM4040 design files
The KiCad project lives in the humancomputerintegration/ProtoPCB repository on GitHub; these links point at the commit this page was built from.
Adafruit LM4040: common questions
How big is the Adafruit LM4040 PCB?
The Adafruit LM4040 measures 16 × 19 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Adafruit LM4040?
8 components, from 6 distinct parts. The full bill of materials is listed on this page.
Where can I download the Adafruit LM4040 design files?
From the humancomputerintegration/ProtoPCB repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Adafruit LM4040 design in my own project?
Yes, under the terms of its GPL-3.0 license, which humancomputerintegration chose for the repository.
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