Description

The DHT11 Temperature and Humidity Sensor Module is a widely used sensor module designed to provide accurate measurements of temperature and humidity.

Here’s an overview of the DHT11 sensor module:

Purpose: The DHT11 sensor module is intended for measuring temperature and humidity levels in the surrounding environment.

Accuracy: It provides basic accuracy suitable for many non-critical applications.

Principle: The module combines a capacitive humidity sensor and a thermistor to measure temperature. It outputs digital signals.

Features:

Dual Measurement: The DHT11 module offers simultaneous temperature and humidity measurements.

Digital Output: The module communicates with microcontrollers using a single-wire digital signal protocol.

Affordability: The DHT11 sensor module is cost-effective, making it popular for various DIY projects and prototypes.

Ease of Use: Its simple digital interface simplifies integration with microcontrollers.

Applications:

Indoor Climate Monitoring: Used to measure temperature and humidity levels indoors for maintaining a comfortable environment.

Home Automation: Integrated into HVAC (heating, ventilation, and air conditioning) systems to regulate indoor climate.

Greenhouses: Deployed in greenhouses to ensure optimal conditions for plant growth.

Weather Stations: Deployed in greenhouses to ensure optimal conditions for plant growth.

Using the DHT11:

Wiring: Connect the sensor’s data pin to a digital input/output pin on a microcontroller.

Powering the Sensor: The sensor usually operates with a 3.3V or 5V DC power supply.

Reading Values: Utilize provided libraries or functions to read temperature and humidity values from the sensor using the digital signal.

Considerations:

Accuracy: The DHT11 provides basic accuracy suitable for general applications, but it may not meet the demands of highly precise projects.

Calibration: Calibrating the sensor in controlled conditions could improve the accuracy of measurements.

Response Time: The sensor’s response time might not be suitable for applications that require rapid temperature or humidity changes.

When integrating the DHT11 Temperature and Humidity Sensor Module into a project, it’s important to understand its accuracy limitations and consider its response time, particularly for applications requiring high precision.

Technical Details

Model: DHT11
Input Supply voltage (VDC): 3.3 ~ 5/li>
Supply Current (mA): measurement 0.3mA standby 60μA
Temperature range (°C) : 0 ~ 50
Temperature measurement error: &±2°C/li>
Humidity measurement range: 20% ~ 95%RH
Humidity measurement error: ±5%RH
Resolution: 16 Bit
Output form: Digital output

Physical Attributes

Length * Width * Height (mm): 31 x 14 x 7.5
Weight (gm) : 3

Package Includes

1 x DHT11 Temperature And Humidity Sensor Module with LED

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DHT11 Temperature And Humidity Sensor Module with LED

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Description

Here’s an overview of the DHT11 sensor module:

Features:

Applications:

Using the DHT11: