Description
Product Overview
The **DHT11 Temperature and Humidity Sensor Module** is a beginner-friendly, low-cost digital sensor designed for basic environmental monitoring. Unlike the standalone sensor, this **3-pin module version** comes mounted on a PCB with a built-in pull-up resistor and a power LED, making it “plug-and-play” ready for Arduino, Raspberry Pi, and ESP8266 projects. It uses a capacitive humidity sensor and a thermistor to measure the surrounding air, spitting out a digital signal on the data pin.
Key Features
- Dual Functionality: Measures both temperature and relative humidity in a single compact unit.
- Module Format: Comes pre-soldered on a breakout board with a power LED indicator (red light) and necessary passive components, saving you from breadboard clutter.
- Easy Interface: Uses a simple single-wire digital interface that works perfectly with standard libraries (like the Adafruit DHT library).
- 3-Pin Header: Clearly labeled pins for **VCC, DATA, and GND** make wiring simple and error-free.
- Low Power: Extremely energy efficient, making it suitable for battery-powered weather stations.
Technical Specifications
- Sensor Model: DHT11
- Operating Voltage: 3.3V to 5V DC
- Temperature Range: 0°C to 50°C (Accuracy: ±2°C)
- Humidity Range: 20% to 90% RH (Accuracy: ±5%)
- Output Type: Digital Signal
- Pinout: VCC (+), DATA (Signal), GND (-)
- Dimensions: Compact PCB module design
Common Applications
- DIY Weather Stations
- Smart Home Thermostats
- Garden/Greenhouse Monitoring Systems
- Environment Data Logging
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