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Measure Temperature with a Sensor Made for Embedded Builds
The Temperature and Humidity HTU21D-F Sensor Breakout Board is a temperature and humidity sensor with i2c designed for climate logging, weather nodes, and room monitoring. It is a practical fit for makers, students, and engineers who want reliable sensor data in embedded builds.
Key details include Interface: I2C.
Important: Sensor response time depends on airflow, mounting, and thermal contact. Keep heat sources and self-heating from nearby parts in mind.
Why you’ll love it
- Easy wiring: I2C
- Maker-friendly build: Easy to use in prototypes, classroom projects, and custom electronics
- Common controller support: Works well with Arduino, ESP32, Raspberry Pi, and similar boards
- Project-ready sensing: temperature logging, thermal control, weather nodes, and equipment monitoring
Compare with similar products
| Product | Sensor style | Standout |
|---|---|---|
| Temperature and Humidity HTU21D-F Sensor Breakout Board | temperature and humidity sensor with I2C | Current item |
| Temperature And Humidity Htu21D-F Sensor Board | temperature and humidity sensor with I2C | I2C interface, digital output |
| Temperature and Humidity Sensor DHT22 Module | temperature and humidity sensor with digital output | digital output, humidity sensing |
| Temperature Humidity Sensor HDC1080 | temperature and humidity sensor with I2C | digital output, humidity sensing |
What you can build
This sensor is a good fit for weather stations, room monitors, greenhouses, incubators, and climate data loggers.
Starter bundles
Pair it with an Arduino-compatible board, ESP32, or Raspberry Pi, plus an I2C cable or jumper wires for quick setup and testing.
Recommended add-ons
Useful add-ons include probe mounts, thermal paste if needed, and a data logger, depending on how you plan to power, mount, and log the sensor.
Technical specifications
| Product | Temperature and Humidity HTU21D-F Sensor Breakout Board |
|---|---|
| Interface | I2C |
| Category | thermal heat temperature sensors |
Wiring & usage notes
Connect VCC, GND, SDA, and SCL to your controller. Use the correct board voltage and I2C address in your code. Sensor response time depends on airflow, mounting, and thermal contact. Keep heat sources and self-heating from nearby parts in mind.
What’s in the box
1 × Temperature and Humidity HTU21D-F Sensor Breakout Board
Frequently Asked Questions
What does the Temperature and Humidity HTU21D-F Sensor Breakout Board measure?
It is designed to measure temperature and humidity.
Can I use it with Arduino, ESP32, or Raspberry Pi?
Yes. It is well suited for common maker and embedded platforms, as long as you power it at the correct voltage and match the signal level to your controller.
How do I connect this I2C sensor?
This version uses I2C, so you usually connect VCC, GND, SDA, and SCL.
What affects accuracy?
Power quality, wiring, mounting, target material, and the real environment can all affect the reading. It is best to test and calibrate in the final setup.
Is it good for prototyping?
Yes. It is a practical choice for learning, proof-of-concept builds, and small automation projects.
Manila stock. Order before 16:00 PHT, ships today via J&T or LBC. Provincial: 1–3 working days.
Schools / class POs: we accept Purchase Orders for accredited schools and universities. contact us with your PO details.
Returns: 7-day inspection window for DOA units. Email proof of issue and we ship a replacement.
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