SBOA631 August   2025 HDC1010 , HDC1080 , HDC2010 , HDC2021 , HDC2022 , HDC2080 , HDC3020 , HDC3020-Q1 , HDC3021 , HDC3021-Q1 , HDC3022 , HDC3022-Q1 , HDC3120 , HDC3120-Q1

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2Digital I2C Interface Overview
    1. 2.1 Register Map Protocol
      1. 2.1.1 A Quick Overview of I2C Register Map Protocol
        1. 2.1.1.1 HDC1x
        2. 2.1.1.2 HDC2x
          1. 2.1.1.2.1 Interfacing in Trigger-On Demand Mode
          2. 2.1.1.2.2 Interfacing Using Auto Measurement Mode (AMM)
    2. 2.2 Command Protocol
      1. 2.2.1 HDC302x
        1. 2.2.1.1 Interfacing in Trigger-On Demand Mode (One-Shot)
        2. 2.2.1.2 Interfacing in Auto Measurement Mode (AMM)
        3.       How to Check Measurement Data With CRC
  6. 3Analog Interface Overview
    1. 3.1 HDC3120
  7. 4Summary
  8. 5Development Support and Documentation
    1. 5.1 Software Support
    2. 5.2 References

5.1 Software Support

For rapid prototyping with Arduino™-based controllers, visit TI's GitHub™ repository for environmental sensors to get started. This repository offers sample code for all available humidity sensors.

For deeper, C-based driver-level support, visit TI's GUI-based code generator, ASC Studio to get started.

For additional assistance, visit the TI E2E Sensors Support Forum.