> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt

# Qwiic Humidity AHT20

**Type:** Product page · **SKU:** SPX-16618 · **Brand:** [Sparkfun](https://core-electronics.com.au/brands/sparkfun-australia)
**Page:** https://core-electronics.com.au/qwiic-humidity-aht20.html ([markdown](https://core-electronics.com.au/qwiic-humidity-aht20.html.md))

## Retired product

This product is retired and no longer available for purchase. Replaced by: ADA4566.

**Replacement:** https://core-electronics.com.au/catalog/product/view/sku/ADA4566

## How to buy

- **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works)
- **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt
## Description

The AHT20 humidity sensor is brand new from ASAIR; it measures temperature within a tolerance of ±0.3 °C and relative humidity with ±2% error putting it on the high end of performance, but with relatively low cost!

Use our Arduino library to send I2C commands over the Qwiic bus to trigger measurements and get real-time temperature and humidity data. Just search "SparkFun AHT20" in the Arduino library manager or download the zip file from our Github repo to get the library.

This board is one of our many [Qwiic](https://www.sparkfun.com/qwiic) compatible boards! Simply plug and go. No soldering, no figuring out which is SDA or SCL, and no voltage regulation or translation required!

We do not plan to regularly produce SparkX products so get them while they’re hot!

 **Experimental Product:** [SparkX](https://www.sparkfun.com/sparkx) products are rapidly produced to bring you the most cutting edge technology as it becomes available. These products are tested but come with no guarantees. Live technical support is not available for SparkX products. Head on over to our [forum](https://forum.sparkfun.com/) for support or to ask a question. **Documents**

- [Datasheet](https://core-electronics.com.au/attachments/localcontent/AHT20_839409f3c30.pdf)
- [Schematic](https://core-electronics.com.au/attachments/localcontent/Qwiic_AHT20_Breakout_63204981476.pdf)
- [Eagle Files](https://core-electronics.com.au/attachments/localcontent/Qwiic_AHT20_Breakout_94632e27109.zip)
- [Github](https://github.com/sparkfunX/Qwiic_Humidity_AHT20/tree/master)
- [SparkFun AHT20 Arduino Library](https://github.com/sparkfun/SparkFun_Qwiic_Humidity_AHT20_Arduino_Library)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/1/6/16618-qwiic_humidity_aht20-01.jpg)