HDC1080 CJMCU-1080 Temperature & Humidity Sensor for Arduino
HDC1080 CJMCU-1080 Temperature & Humidity Sensor for Arduino
HDC1080 CJMCU-1080 High-Precision Temperature & Humidity Sensor Module
Take your electronics projects to the next level with the HDC1080 CJMCU-1080 Temperature and Humidity Sensor Module. Built around the high-precision HDC1080 IC, this compact breakout board delivers accurate, reliable environmental readings — making it an ideal choice for Arduino, Raspberry Pi, and other microcontroller-based platforms.
Whether you're building a smart home weather station, an environmental monitoring system, or a data-logging device, this sensor module provides the precision and stability your project demands. Made in Mainland China.
Key Features
- High-Precision Sensing: The HDC1080 chip delivers ±2% relative humidity accuracy and ±0.2°C temperature accuracy for dependable readings.
- I²C Interface: Simple two-wire I²C communication makes it effortless to integrate with Arduino, ESP8266, ESP32, Raspberry Pi, and more.
- Wide Measurement Range: Measures humidity from 0% to 100% RH and temperature from -40°C to +125°C.
- Low Power Consumption: Energy-efficient design suited for battery-powered and portable applications.
- Compact Breakout Board: CJMCU form factor with clearly labeled pins for fast, hassle-free wiring.
- Polymer Construction: Durable polymer PCB substrate ensures long-lasting performance in varied environments.
- Plug-and-Play Ready: Onboard decoupling capacitors and pull-up resistors reduce the need for external components.
Specifications
- Sensor IC: TI HDC1080
- Communication Protocol: I²C
- Supply Voltage: 3.3V – 5V
- Humidity Range: 0% – 100% RH (±2% accuracy)
- Temperature Range: -40°C to +125°C (±0.2°C accuracy)
- Output Type: Switching Transducer (digital)
- Sensor Theory: Resistance Sensor
- Material: Polymer
- Origin: Made in Mainland China
What's in the Box
- 1 × HDC1080 CJMCU-1080 Temperature & Humidity Sensor Module
Perfect For
- Arduino and ESP32/ESP8266 DIY projects
- Smart home automation systems
- Indoor weather stations and data loggers
- Greenhouse and grow-room environment monitoring
- HVAC and climate control prototypes
- Educational electronics and STEM projects
Looking for more tools and components for your DIY builds? Check out our Air Compressor Pressure Gauge – DIY Tool and the Electromagnetic Induction Tester – Coil & Circuit Fault Detector to complement your workshop toolkit.
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Frequently Asked Questions
Q: Is the HDC1080 CJMCU-1080 sensor module compatible with Arduino and Raspberry Pi?
A: Yes! The HDC1080 sensor module uses a standard I²C interface, making it fully compatible with Arduino (Uno, Mega, Nano), Raspberry Pi, ESP8266, ESP32, and virtually any microcontroller that supports I²C communication. Numerous open-source libraries are available to get you started quickly.
Q: What voltage does the HDC1080 sensor module require?
A: The module operates on a supply voltage of 3.3V to 5V, making it compatible with both 3.3V (Raspberry Pi, ESP32) and 5V (Arduino Uno) systems without the need for a voltage level shifter in most cases.
Q: How accurate is the HDC1080 for temperature and humidity measurements?
A: The HDC1080 IC provides ±2% relative humidity accuracy and ±0.2°C temperature accuracy — among the best in its class for compact sensor modules — ensuring reliable data for weather stations, environmental monitors, and automation projects.
Q: Does the module require any external components to work?
A: No additional components are required for most setups. The CJMCU-1080 breakout board includes onboard decoupling capacitors and I²C pull-up resistors, so you can wire it directly to your microcontroller and start coding right away.