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DHT11 Temperature & Humidity Sensor Module for Arduino & ESP32
DHT11 Temperature & Humidity Sensor Module for Arduino & ESP32
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The DHT11 Temperature & Humidity Sensor measures ambient temperature and relative humidity and provides digital data to microcontrollers such as Arduino and ESP32. Ideal for weather stations, IoT, smart home and electronics projects.
Technical Specifications
| Specification | Typical DHT11 Specification |
|---|---|
| Sensor Type | Digital Temperature & Humidity |
| Temperature Range | 0°C to 50°C |
| Temperature Accuracy | Approximately ±2°C |
| Humidity Range | 20% to 80% RH |
| Humidity Accuracy | Approximately ±5% RH |
| Supply Voltage | Commonly 3V–5.5V |
| Output | Digital |
| Interface | Single-wire digital communication |
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Key Features
Key Features
Measures temperature
Measures relative humidity
Digital data output
Simple single-wire communication
Easy Arduino integration
Compatible with ESP32
Low-cost sensor
Beginner-friendly
Suitable for IoT projects
Available as sensor or module depending on variant
Applications
Applications
Weather Station
Temperature Monitoring
Humidity Monitoring
Smart Home
IoT Projects
Arduino Projects
ESP32 Projects
Room Environment Monitoring
Plant Monitoring
Agriculture Projects
Automation
STEM Education
College Projects
Engineering Projects
Package Includes
Package Includes
1 × DHT11 Temperature & Humidity Sensor Module
Compatibility
Compatibility
Frequently Asked Questions
Frequently Asked Questions
What does the DHT11 measure?
It measures ambient temperature and relative humidity.
Can I use DHT11 with Arduino Uno?
Yes. It is commonly used with Arduino Uno.
Can I use it with ESP32?
Yes. It can be connected to an ESP32 digital GPIO.
Is DHT11 accurate?
DHT11 is suitable for basic monitoring and educational projects, but it is not a high-precision environmental sensor.
What is the difference between DHT11 and DHT22?
DHT22 generally offers a wider measurement range and better accuracy, while DHT11 is a lower-cost option suitable for basic applications.
Can I make a weather station with DHT11?
Yes. You can combine it with Arduino/ESP32 and a display or IoT platform to create a basic weather/environment monitoring system.
Can it measure soil moisture?
No. DHT11 measures air temperature and humidity. Use a soil moisture sensor for soil moisture measurement.
