The KY-015 DHT11 Temperature Humidity Sensor Module is a compact and reliable environmental monitoring sensor designed to measure both temperature and relative humidity in real-time. Based on the popular DHT11 digital sensor, this module provides calibrated digital output, making it easy to interface with Arduino, ESP32, ESP8266, Raspberry Pi, STM32, and other microcontroller platforms.

This all-in-one temperature and humidity sensor is ideal for weather stations, smart home systems, greenhouse monitoring, HVAC control, IoT projects, environmental data logging, educational electronics, and automation applications. With its compact design and simple single-wire digital interface, the KY-015 module is suitable for both beginners and professional developers.

The sensor measures temperatures from 0°C to 50°C and humidity levels from 20% to 90% RH. Its 2-second sampling rate provides stable and accurate environmental readings while maintaining low power consumption.

Features:

• Integrated DHT11 temperature and humidity sensor
• Measures both temperature and relative humidity
• Digital signal output for easy interfacing
• Pre-calibrated sensor for stable readings
• Compact module design
• Breadboard-friendly pin layout
• Supports direct soldering or prototyping
• Low power consumption
• Fast and reliable communication
• Simple single-wire data interface
• Suitable for indoor environmental monitoring
• Easy integration with Arduino and microcontrollers
• Ideal for IoT and automation projects
• Long operational lifespan

BDTronics provides quality-tested sensors, Arduino modules, development boards, and electronic components for students, hobbyists, engineers, and automation professionals. The KY-015 DHT11 Sensor Module is selected for dependable temperature and humidity monitoring in embedded and IoT applications.

Specifications:

• Model: KY-015
• Sensor Type: DHT11 Temperature & Humidity Sensor
• Operating Voltage: 3.3V – 5V DC
• Temperature Measurement Range: 0°C to 50°C
• Temperature Accuracy: ±2°C
• Humidity Measurement Range: 20% RH to 90% RH
• Humidity Accuracy: ±5% RH
• Sampling Rate: 2 Seconds
• Output Signal: Digital
• Communication Protocol: Single-Wire Digital Interface
• Mounting Type: Through-Hole Module
• Power Consumption: Low
• Compatibility: Arduino, ESP32, ESP8266, Raspberry Pi, STM32, AVR, PIC

How It Works:

• The DHT11 sensor continuously monitors ambient temperature and humidity.
• Internal calibration data ensures reliable measurements.
• Sensor data is transmitted digitally through a single data pin.
• The microcontroller receives and processes the environmental readings.
• No analog-to-digital conversion is required.

Pin Configuration:

• VCC: Power Supply (3.3V–5V)
• DATA: Digital Data Output
• GND: Ground

How to Use:

• Connect VCC to a 3.3V or 5V supply.
• Connect GND to system ground.
• Connect DATA pin to a digital I/O pin on the microcontroller.
• Install the DHT11 library if using Arduino IDE.
• Upload a compatible sensor reading program.
• Read temperature and humidity values every 2 seconds.
• Display data on LCDs, OLEDs, serial monitors, or cloud dashboards.

Applications:

• Weather monitoring stations
• Smart home automation systems
• Greenhouse monitoring
• HVAC control systems
• IoT environmental monitoring
• Indoor climate measurement
• Data logging projects
• Home automation controllers
• Educational electronics projects
• Arduino sensor learning kits
• Industrial monitoring systems
• Temperature and humidity alarms
• Server room monitoring
• Storage room environment monitoring
• Agricultural monitoring systems

Advantages:

• Measures temperature and humidity simultaneously
• Easy digital communication
• Compact and lightweight design
• Low power operation
• Beginner-friendly module
• Stable and calibrated output
• Breadboard compatible
• Cost-effective environmental sensor

Package Includes:

• 1 × KY-015 DHT11 Temperature Humidity Sensor Module

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