KY-015 DHT11 Temperature And Humidity Sensor Module

KY-015 DHT11 Temperature and Humidity Sensor Module is a compact digital sensor used to measure both ambient temperature and relative humidity. It combines the DHT11 sensor with a breakout board, making it easy to connect to microcontroller platforms like Arduino, ESP8266, and Raspberry Pi. This module is ideal for weather monitoring, IoT systems, and environment sensing projects.

Key Features:

• Dual Functionality: Measures both temperature and humidity.
• Digital Output: Provides data over a single digital pin.
• Pre-Calibrated Sensor: Calibrated output simplifies setup and accuracy.
• Low Power Consumption: Suitable for battery-powered applications.
• Compatible with Arduino: Works with common libraries and sample codes.

Technical Specifications:

• Temperature Range: 0°C to 50°C ±2°C
• Humidity Range: 20% to 90% RH ±5%
• Operating Voltage: 3.3V to 5V
• Output Type: Digital signal via single-wire protocol
• Sampling Rate: Once every 1 second (1Hz)
• Response Time: Less than 5 seconds
• PCB Dimensions: Approx. 3.2cm × 1.4cm

Mechanical Specifications:

• Sensor Type: DHT11 mounted on a breakout board
• Pin Headers: 3-pin male header (VCC, DATA, GND)
• Mounting Holes: For easy attachment to chassis or enclosure
• Weight: Approx. 3g

Pinout and Wiring:

• VCC: Connect to 3.3V or 5V supply
• DATA: Connect to digital input pin on microcontroller
• GND: Connect to ground
• Connection: Use a 10k pull-up resistor between DATA and VCC if required

Datasheet and Documentation:

• Download DHT11 Sensor Datasheet (PDF)

Applications:

• Weather Monitoring: Ideal for indoor or outdoor temperature and humidity logging.
• Home Automation: Integrates easily into smart home systems.
• IoT Projects: Used in environmental monitoring with Wi-Fi or Bluetooth controllers.
• Educational Kits: Perfect for learning about sensors and data logging.
• Greenhouse Monitoring: Helps maintain optimal temperature and humidity for plant growth.

Equivalent Models:

• AM2302 (DHT22): Higher precision and wider range digital humidity/temperature sensor
• Si7021: I2C-based sensor for accurate environmental measurements
• BME280: Measures temperature, humidity, and pressure in one module

Package Includes:

• 1 x KY-015 DHT11 Temperature and Humidity Sensor Module