Description
The DHT11 Sensor Module is a simple and reliable digital temperature and humidity sensor designed for indoor environmental monitoring and educational embedded projects.
It integrates a capacitive humidity sensor and a thermistor-based temperature sensor on a single chip, providing calibrated digital output via a one-wire serial interface.
The sensor features high stability, long-term accuracy, and low power consumption, making it ideal for both beginner projects and industrial prototypes.
Perfect for:
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IoT & weather-monitoring systems
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Smart home automation (temperature control, fan/AC systems)
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Environmental logging & data acquisition
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Student lab projects (STM32, Raayan Mini, Arduino, ESP32)
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Real-time monitoring displays with LCD/OLED
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | DHT11 |
| Supply Voltage | 3.3 V – 5.5 V |
| Interface | Single-Wire Serial Digital |
| Temperature Range | 0°C – 50°C |
| Temperature Accuracy | ±2°C |
| Humidity Range | 20% – 90% RH |
| Humidity Accuracy | ±5% RH |
| Sampling Period | 1 sample per second (1 Hz) |
| Output Signal | Digital (TTL) |
| Dimensions | 15.5 mm × 12 mm × 5.5 mm |
| Operating Current | < 2.5 mA (active), 100 µA (standby) |
Reference Manual:
Usage Tips
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Connect VCC → 3.3 V/5 V, GND → GND, DATA → MCU input pin.
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Use a 10 kΩ pull-up resistor between DATA and VCC for stable readings.
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Recommended sampling rate: once every 5 seconds for accurate results.
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Excellent for integration with Raayan Mini boards in IoT lab projects.
Admission for 6 months Embedded AI & IoT offline course at Hyderabad & Bangalore
Course Fee: ₹12000 /-
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