DHT11 Temperature and Humidity Sensor

DHT11 Temperature and Humidity Sensor is a basic, low-cost digital sensor for measuring temperature and humidity. Its compact size, low power consumption, and simplicity make it ideal for various applications, including weather monitoring, home automation, and IoT projects.

Key Features of DHT11 Temperature and Humidity Sensor:

• • Temperature Measurement: Measures temperature from 0°C to 50°C with ±2°C accuracy.
  • Humidity Measurement: Detects relative humidity from 20% to 90% with ±5% accuracy.
  • Digital Output: Single-wire digital communication for easy interfacing.
  • Low Power Consumption: Ideal for battery-powered applications.
  • Pre-Calibrated: No additional calibration required for immediate use.
  • Compact Design: Small and lightweight, suitable for tight spaces.

Technical Specifications of DHT11 Temperature and Humidity Sensor:

• • Operating Voltage: 3.3V to 5.5V
  • Temperature Range: 0°C to 50°C
  • Temperature Accuracy: ±2°C
  • Humidity Range: 20% to 90% RH
  • Humidity Accuracy: ±5% RH
  • Interface: Single-wire digital communication
  • Response Time: 1 second
  • Dimensions: 15mm x 12mm x 5mm

Mechanical Specifications of DHT11 Temperature and Humidity Sensor:

• • Dimensions: 15mm x 12mm x 5mm
  • Mounting: PCB-mountable with through-hole pins
  • Weight: Approximately 2 grams

Schematic Diagram, Connection, Wiring, and Pinout of DHT11 Sensor:

• • Schematic Diagram: The sensor has 4 pins: VCC, GND, Data, and NC. A pull-up resistor (4.7kΩ to 10kΩ) is required for the Data pin.
  • Connection Steps:
    • 1. Connect the VCC pin to a 3.3V or 5V power supply.
    • 2. Connect the GND pin to the ground of the circuit.
    • 3. Connect the Data pin to a digital input pin of your microcontroller (use a pull-up resistor).
  • Pinout:
    • VCC: Power supply input (3.3V to 5.5V)
    • GND: Ground
    • DATA: Digital data output
    • NC: Not connected

Applications of DHT11 Temperature and Humidity Sensor:

• • Weather Monitoring: Measure environmental temperature and humidity.
  • Home Automation: Use in smart HVAC and dehumidifier systems.
  • Greenhouses: Monitor temperature and humidity for optimal plant growth.
  • IoT Projects: Add environmental monitoring capabilities to IoT devices.
  • DIY Electronics: Perfect for beginner-level projects involving sensors.

Datasheet:

• • Download DHT11 Datasheet

Keywords for DHT11 Temperature and Humidity Sensor:

• • DHT11
  • Temperature and Humidity Sensor
  • Digital Temperature Sensor
  • Single-Wire Humidity Sensor
  • Environmental Monitoring Sensor

Package Includes:

• • 1 x DHT11 Temperature and Humidity Sensor