Adafruit
Adafruit Sensirion SHTC3 Temperature Humidity Sensor - STEMMA QT / Qwiic
The Adafruit Sensirion SHTC3 is a compact temperature and humidity sensor with a true I2C interface, offering ±2% relative humidity and ±0.2 °C temperature a...
The Adafruit Sensirion SHTC3 is a compact temperature and humidity sensor with a true I2C interface, offering ±2% relative humidity and ±0.2 °C temperature accuracy. It's a cost-effective option from Sensirion's range, well suited for general-purpose environmental monitoring.
The breakout includes a voltage regulator and level shifting, making it compatible with both 3.3 V and 5 V systems. STEMMA QT / Qwiic connectors allow solderless hookup, and Arduino and CircuitPython libraries are available for quick integration.
Key Features
- Relative Humidity Accuracy – ±2% RH typical
- Temperature Accuracy – ±0.2 °C typical
- True I2C Interface – Address 0x70
- Low Power – Suitable for battery-powered applications
- 3.3 V / 5 V Compatible – Onboard voltage regulator and level shifting
- STEMMA QT / Qwiic Connectors – Solderless I2C connection and daisy-chaining
Also Consider
- SHT40 Sensor – Newer SHT4x generation with ±1.8% RH and additional features like variable power heater
- SHT45 Sensor – Highest precision option with ±1.0% RH and ±0.1 °C accuracy
Ideal For
- General-purpose environmental monitoring
- Weather stations and data logging
- HVAC and climate control systems
- Indoor comfort monitoring
Package Contents
- 1× Adafruit Sensirion SHTC3 Temperature & Humidity Sensor Breakout
- 1× Header strip (soldering required for breadboard use)
Resources
Jargon buster
Plain-language definitions for the technical terms used above.
- breakout
- A breakout is a small circuit board that makes a tiny or hard-to-solder component easier to connect to with standard pins. It matters because this OLED module can be wired into a microcontroller project without needing to solder directly to the display’s fine contacts.
- CircuitPython
- A beginner-friendly version of Python designed to run directly on microcontroller boards. If a product supports CircuitPython, you can often program it by copying code files onto the board rather than setting up a more complex toolchain.
- I2C
- I2C is a two-wire communication bus used by many sensors and small modules. It matters because several I2C devices can share the same two wires, but each device needs a compatible address and your controller must support I2C.
- Qwiic
- Qwiic is a plug-in connector system for I2C devices that uses small 4-pin cables, so you can connect compatible sensors without soldering. It matters because your controller or adapter also needs Qwiic, or you will need a cable or breakout to wire it up.
- STEMMA
- A plug-and-cable connection system used on some maker electronics boards to make wiring simpler. If a product uses STEMMA, you need the matching cable or connector type to plug it in without soldering.
- STEMMA QT
- A small plug-in connector system for I2C boards that lets you connect compatible sensors and controllers without soldering. It matters because it can make wiring faster and less error-prone, especially when adding several small modules to a project.
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