User’s Guide
HDC3020EVM User Guide
ABSTRACT
This is the user guide for the HDC3 family, an integrated Relative Humidity (RH) and Temperature sensor
that provides high accuracy with ultra-low power consumption. This family of sensors is equipped with a Drift
Correction feature to further compensate and improve sensor drift due to contaminants and aging. The HDC3
family is ready to use out of the box and does not require any further calibration.
The hardware is populated with the HDC3020, an open cavity commercial version. Users can replace the
HDC3020 device on this EVM with any of the devices from the HDC3020 family. It can be used to evaluate
HDC3021 (removable tape) and HDC3022 (IP67 filter membrane), and their respective automotive versions
because the HDC3 family are pin-to-pin and 100% software compatible.
This module and the GUI are designed to provide the user a quick setup to evaluate the device. This document
includes the details of the EVM hardware and the software installation.
Table of Contents
8 HDC3020EVM Build of Materials
Trademarks
All trademarks are the property of their respective owners.
Table of Contents
SNAU267A – JUNE 2021 – REVISED JUNE 2021
HDC3020EVM User Guide
1
Copyright © 2021 Texas Instruments Incorporated