This product has gone red! The SparkX version is just as good, and now on sale!

Sensirion's SHTC3 digital humidity sensor builds on the success of their SHTC1 sensor. The SHTC3 has a broader supply voltage range (1.62V to 3.6V) and higher accuracy (±2% RH, ±0.2°C) than its predecessor, enabling greater flexibility.

The SHTC3 is low cost, easy-to-use, highly accurate, digital humidity and temperature sensor. This sensor is ideal for environmental sensing and data logging and perfect for build a weather stations or humidor control system. All you need are two lines for I²C communication, and you’ll have relative humidity readings and very accurate temperature readings as a bonus!

Hook up is a breeze with as the breakout board is using the Qwiic connect system. The breakout board has built-in 2.2k? pullup resistors for I²C communications. If you’re hooking up multiple I²C devices on the same bus, you may want to disable these resistors.

NOTE: The I²C address of the SHTC3 is 0x71 and is hardware defined. A multiplexer/Mux is required to communicate to multiple SHTC3 sensors on a single bus. If you need to use more than one SHTC3 sensor consider using the Qwiic Mux Breakout.

Documents:

• Sensirion SHTC3 Datasheet

• Qwiic Connect System

• Hardware

  • GitHub Repo
  • SHTC3 Eagle Files
  • PDF Schematic

• Software

  • GitHub Repo
  • Zip File