DHT 11 SENSOR

The DHT11 is a basic, digital sensor that measures temperature and humidity. It is popular in DIY projects due to its simplicity and ease of use with microcontrollers like Arduino and Raspberry Pi.

Specifications:

Sensor Type: DHT11 Temperature and Humidity Sensor

Output Type: Digital

Operating Voltage: 3.3V – 5V

Temperature Range: 0°C to 50°C

Temperature Accuracy: ±2°C

Humidity Range: 20% to 90%

Humidity Accuracy: ±5%

Easy to Use with Breadboard and Jumper Wires

Compact Size: Perfect for Small Projects

Dimensions: 19mm x 17mm

Weight: 6g

Key Features:

Temperature Range: 0°C to 50°C (with ±2°C accuracy)

Humidity Range: 20% to 90% Relative Humidity (RH) (with ±5% accuracy)

Operating Voltage: 3.3V to 5.5V

Output: Digital signal on a single pin

Sampling Period: 1 reading every 2 seconds (limited frequency)

Pre-calibrated: No need for additional calibration

Data Transfer Protocol: Single-wire communication

Pin Configuration:

The DHT11 sensor has 4 pins (or 3 pins in some modules):

VCC – Power supply (3.3V or 5V)

GND – Ground

Data – Transmits temperature and humidity data

NC – Not Connected (ignore if present)

Applications:

Home automation systems for climate control

Weather stations and environmental monitoring

Greenhouses and agriculture

HVAC systems to monitor air quality