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Adafruit AHT20 Temperature & Humidity

humancomputerintegration·ProtoPCB·Code/temp/Adafruit AHT20 Temperature & Humidity.kicad_pcb

Adafruit AHT20 Temperature & Humidity PCB layout, top view — open source board by humancomputerintegration
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About the Adafruit AHT20 Temperature & Humidity PCB

Adafruit AHT20 Temperature & Humidity is an open source PCB design by humancomputerintegration, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 25.4 × 17.8 mm, with 13 components from 11 distinct parts.

Other key parts include the AHT20. By type, the board carries 5 ICs, 2 capacitors, 2 resistors, 1 jumper and 1 diode.

It belongs with the sensors designs in this gallery.

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 AHT20 Temperature & Humidity, from the project README
From the project README

Main components on the Adafruit AHT20 Temperature & Humidity

AHT20

Adafruit AHT20 Temperature & Humidity bill of materials (BOM)

13 components, 11 distinct parts.

QtyPartRefs
1
AHT20
U1
1
—
U$28
1
—
U$29
2
—
U$30, U$31
2
STEMMA_I2C_QT
CONN3, CONN4
1
—
JP2
1
GREEN
D1
1
10uF
C5
1
0.1uF
C6
1
220
R1
1
10K
R5

Adafruit AHT20 Temperature & Humidity 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 AHT20 Temperature & Humidity: common questions

How big is the Adafruit AHT20 Temperature & Humidity PCB?

The Adafruit AHT20 Temperature & Humidity measures 25.4 × 17.8 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Adafruit AHT20 Temperature & Humidity?

13 components, from 11 distinct parts. The full bill of materials is listed on this page.

Where can I download the Adafruit AHT20 Temperature & Humidity design files?

From the humancomputerintegration/ProtoPCB repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Adafruit AHT20 Temperature & Humidity 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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