OverviewThe DHT11 Temperature & Humidity Sensor Module is a low-cost, reliable solution for environmental sensing. It combines a capacitive humidity sensor and a thermistor to provide digital temperature and humidity readings. The module is pre-calibrated, energy efficient, and simple to interface with popular microcontrollers, making it ideal for DIY projects, home automation, weather stations, and light industrial monitoring.Key FeaturesDual sensing: Measures both temperature and humidity from a single module.Digital output: Single-wire communication simplifies wiring and coding.Accurate readings: Temperature accuracy ±2°C; humidity accuracy ±5% RH for dependable monitoring.Compact and lightweight: Small footprint fits into tight enclosures and portable devices.Low power: Optimized for battery-operated and low-power applications.Pre-calibrated: Factory-calibrated for immediate use without extra calibration steps.SpecificationsSensor type: Capacitive humidity sensor and thermistorOutput: Digital signal via a single-wire communication protocolTemperature range: 0°C to 50°CTemperature accuracy: ±2°CHumidity range: 20% to 90% RHHumidity accuracy: ±5% RHOperating voltage: 3.3V to 5VDimensions: 15.5mm x 12mm x 5.5mmWeight: 2 gramsPins: VCC, GND, DATAApplicationsThe DHT11 module is suitable for a wide range of use cases where compact, low-cost environmental monitoring is required:Home automation: Monitor indoor climate for HVAC control, smart thermostats, and greenhouse systems.Weather stations: Core component for DIY and educational weather monitoring setups.Industrial monitoring: Track conditions in warehouses, storage rooms, and light industrial environments.Health and safety: Maintain stable environments in labs, clinics, and medical storage areas.BenefitsReliable monitoring: Stable and repeatable measurements for routine monitoring tasks.Easy integration: Single-wire digital protocol works with Arduino, Raspberry Pi, ESP8266, ESP32, and other microcontrollers.Energy efficient: Low current draw makes it suitable for portable, battery-powered devices.Ready out of the box: Pre-calibrated sensor reduces setup time and eliminates the need for additional calibration.Getting Started and Integration TipsFollow these steps for quick integration into common development boards:Connect VCC to 3.3V or 5V, GND to ground, and DATA to a digital GPIO pin.Use a 4.7k to 10k pull-up resistor on the DATA line if required by your board or wiring setup.Install a DHT11 library for your platform. Libraries are available for Arduino IDE, Raspberry Pi (Python), and ESP environments.Begin reading values using example sketches or scripts, and account for the sensors sampling limits (typical update rate about 1 Hz).Compatible PlatformsArduino (Uno, Nano, Mega)Raspberry Pi (Python libraries available)ESP8266 and ESP32Other microcontroller platforms supporting single-wire digital inputWhy Choose the DHT11 ModuleIf you need an affordable, compact, and easy-to-use sensor for basic temperature and humidity monitoring, the DHT11 is an excellent choice. It balances cost and performance for hobbyists, educators, and professionals building simple environmental monitoring systems.Ordering and NotesModule ships pre-calibrated and ready to use.Not recommended for high-precision laboratory use where better accuracy and a wider measurement range are required.Images are for illustration purposes only.NoteImages are for Illustration Purposes Only. Categories: Boards, Modules and Accessories, Sensors And Modules Tags: Arduino Sensor, Home Automation, Humidity Sensor, Raspberry Pi Sensor, Temperature Sensor College Road Electronics4.85 (317 Reviews)
