DHT11 Digital Temperature & Humidity Sensor Module
The DHT11 Temperature and Humidity Sensor Module is one of the most widely used environmental sensors for beginner and student projects. It allows Arduino, ESP8266, ESP32, and Raspberry Pi boards to measure ambient temperature and humidity using a single digital pin.
Why Choose the DHT11?
- Beginner-friendly and easy to wire
- Pre-calibrated digital output
- Reliable for room monitoring applications
- Cost-effective for school and IoT builds
- Compatible with Arduino, ESP8266, ESP32, and Raspberry Pi
What Can You Build?
- Room temperature monitoring system
- Mini weather station
- Smart greenhouse controller
- IoT environmental monitoring dashboard
- Home automation climate display
How It Works
The DHT11 integrates a humidity sensing component and an NTC thermistor to measure surrounding air conditions. It transmits calibrated digital data to the microcontroller through a proprietary single-wire protocol, eliminating the need for analog-to-digital conversion.
Connect VCC, GND, and DATA, then install a compatible library such as the Adafruit DHT Sensor Library to start reading temperature and humidity values.
Technical Specifications
| Operating Voltage | 3.3V – 5V DC |
|---|---|
| Temperature Range | 0°C to 50°C |
| Humidity Range | 20% to 80% RH |
| Temperature Accuracy | ±2°C |
| Humidity Accuracy | ±5% RH |
| Output Signal | Digital (Single-wire protocol) |
| Sampling Rate | 1 reading per second |
Pin Configuration
- VCC – 3.3V to 5V Power
- DATA – Digital Signal Output
- GND – Ground
Ideal for Students and Makers
The DHT11 is a reliable starting point for environmental sensing projects. It is widely supported by online tutorials, Arduino examples, and maker communities.
If your application requires a wider temperature range or higher accuracy, you may consider upgrading to the DHT22 Temperature and Humidity Sensor Module.
What’s in the Box?
- 1 × DHT11 Temperature & Humidity Sensor Module
DHT11 Digital Temperature/Humidity Sensor Module
DHT11 Digital Temperature/Humidity Sensor Module
Low stock: 6 left
Product Code
SKU:AB118
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