The DHT11 Temperature & Humidity Module is one of the most popular sensors for basic environmental monitoring.
It combines a capacitive humidity sensor and a thermistor to measure temperature and relative humidity with good accuracy at low cost.
The module includes a PCB with pull-up resistor and easy pin interface, making it simple to connect with any microcontroller.
It provides digital output, so no analog-to-digital conversion is needed—making it beginner-friendly and perfect for IoT and smart home applications.
✨ Features
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Digital output for easy interfacing
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Measures both temperature and humidity
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Pre-mounted resistor for quick usage
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Single-wire communication
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Good stability and fast response
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Fully compatible with Arduino libraries
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3-pin module: VCC, GND, DATA
📌 Specifications
| Parameter | Value |
|---|---|
| Operating Voltage | 3.3V – 5V |
| Temperature Range | 0°C to 50°C |
| Temperature Accuracy | ±2°C |
| Humidity Range | 20% – 90% RH |
| Humidity Accuracy | ±5% RH |
| Output | Digital (Single-Wire) |
| Sampling Rate | 1 Hz (1 reading/sec) |
| Pins | VCC, GND, DATA |
| Library Support | Arduino, ESP8266, ESP32, Raspberry Pi |
📦 Applications
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Weather stations
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Smart home monitoring
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Greenhouse environment control
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IoT & automation systems
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Room temperature/humidity display
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HVAC projects
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