Adafruit Sensirion SHTC3 Temperature & Humidity Sensor - STEMMA QT / Qwiic Breakout

Name: Adafruit Sensirion SHTC3 Temperature &amp; Humidity Sensor - STEMMA QT / Qwiic Breakout
Brand: Adafruit
SKU: SENS-3391
Price: 1109.00 INR
Availability: OutOfStock

₹1,109.00 (Inclusive of all taxes)

Out of Stock

The Adafruit Sensirion SHTC3 breakout board integrates a high-accuracy digital temperature and humidity sensor with a true I2C interface, compatible with 3.3V and 5V logic systems like Arduino, Raspberry Pi, ESP32, and other microcontrollers via its STEMMA QT / Qwiic connectors for solderless prototyping.

Features

High-Accuracy Sensing: Delivers ±2% RH and ±0.2°C temperature precision for reliable environmental monitoring.
True I2C Interface: Simplifies wiring with a standard two-wire communication protocol (I2C address 0x70).
Dual Voltage Compatibility: Integrated voltage regulation ensures stable operation with both 3.3V and 5V microcontroller systems.
Plug-and-Play Connectivity: Features pre-soldered STEMMA QT / Qwiic connectors for rapid, solderless integration into projects.
Comprehensive Software Support: Officially supported by Adafruit libraries for Arduino and CircuitPython/Python.

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Description

The Adafruit Sensirion SHTC3 breakout board hosts a MEMS-based capacitive humidity sensor and a band-gap temperature sensor, delivering calibrated digital readings via I2C. The onboard signal conditioning and voltage regulator provide robust performance across a wide operating range of -40°C to 125°C and 0-100% RH, making it suitable for demanding applications.

Designed for rapid prototyping, the pre-assembled PCB includes all necessary pull-up resistors and decoupling capacitors. The inclusion of STEMMA QT / Qwiic connectors allows for instant daisy-chaining with compatible development boards, eliminating soldering for initial testing while also providing header pins for permanent breadboard integration.

Key Features

High-Accuracy Sensirion SHTC3 Sensor: Provides industry-standard precision for humidity and temperature measurement.
Integrated Voltage Regulation & Level Shifting: Ensures reliable operation across 3.3V to 5V DC systems without external components.
Pre-Assembled Breakout Board: Includes necessary pull-up resistors and decoupling capacitors for optimal signal integrity.
Dual Connectivity Options: Features both STEMMA QT / Qwiic connectors for plug-and-play use and breakaway header pins for breadboard mounting.
Wide Operating Range: Functions from -40°C to 125°C and 0-100% relative humidity.
Extensive Software Ecosystem: Supported by Adafruit's maintained libraries for Arduino and CircuitPython, enabling quick project deployment.
Compact and Durable PCB Design: Optimized footprint for embedded projects and portable monitoring systems.

Applications

HVAC system monitoring and climate control feedback loops.
Indoor air quality (IAQ) monitoring stations and smart home environmental sensors.
Data logging for agricultural and greenhouse automation systems.
Portable weather stations and microclimate research equipment.
Condition monitoring in electronics enclosures and server racks.

Technical Specifications

Sensor Model	Sensirion SHTC3
Measurement Range (Humidity)	0 to 100 %RH
Measurement Range (Temperature)	-40 °C to 125 °C
Accuracy (Humidity)	±2 %RH
Accuracy (Temperature)	±0.2 °C
Communication Interface	I2C (True 2-Wire)
I2C Address	0x70
Supply Voltage Compatibility	3.3V to 5V DC
Connector Type	STEMMA QT / Qwiic
Package Contents	SHTC3 Breakout Board, Header Pin Set

Frequently Asked Questions

What is the I2C address of the SHTC3 sensor on this breakout?

The Sensirion SHTC3 sensor on this Adafruit breakout uses the fixed I2C address 0x70. This address is hardcoded by the manufacturer, so only one SHTC3 can be used on a single I2C bus without an address multiplexer. The breakout includes the necessary pull-up resistors for the I2C lines.

Is this breakout compatible with both 3.3V and 5V microcontrollers?

Yes, the breakout board features built-in voltage regulation and level shifting circuitry, making it fully compatible with systems operating at either 3.3V or 5V logic levels. You can power it directly from your microcontroller's 3.3V or 5V pin, and the I2C signals will be correctly translated.

Do I need to solder anything to use the STEMMA QT connectors?

No, the STEMMA QT (and Qwiic-compatible) connectors are pre-soldered and allow for completely solderless connection using a matching cable to compatible host boards like Adafruit QT Py or SparkFun RedBoard. The included header pins are optional for users who prefer a traditional breadboard setup.

What libraries are available for reading data from this sensor?

Adafruit provides and maintains the 'Adafruit SHTC3' library for Arduino and the 'Adafruit_CircuitPython_SHTC3' library for CircuitPython/Python. These libraries handle all low-level communication, provide temperature in Celsius and humidity in %RH, and include examples for quick integration into your projects.