Short Key Features (Bullet Points)
Dual Environmental Sensing: Measures both relative humidity and ambient temperature accurately using an internal calibrated digital sensor element.
Plug-and-Play Microcontroller Support: Fully compatible with Arduino, ESP32, ESP8266, Raspberry Pi, and STM32 development boards.
Digital Single-Bus Interface: Outputs processed digital data directly, eliminating the need for external analog-to-digital (ADC) conversion.
Low Power Consumption: Energy-efficient design optimized for battery-powered IoT devices, remote weather stations, and portable projects.
Compact & Lightweight: Small footprint fits easily into tight enclosures, custom breadboard layouts, and smart home prototypes.
Product Overview & Description
The DHT11 Temperature and Humidity Sensor Module is a staple component for makers, students, and IoT developers looking to track environmental conditions. Featuring a calibrated digital signal output, it provides reliable measurements of ambient temperature and relative humidity with minimal setup.
Unlike complex analog sensors, the DHT11 incorporates an internal thermistor and a capacitive humidity sensing element alongside a high-performance 8-bit microcontroller. This makes it exceptionally beginner-friendly. Whether you are building an automated greenhouse monitoring system, a desktop weather station, or a smart climate-control hub, the DHT11 delivers dependable data for your microcontrollers. Technical Specifications
Feature / Parameter | Specification |
Operating Voltage (VCC) | 3.3V to 5.5V DC |
Temperature Measuring Range | 0°C to 50°C (Accuracy: ±2°C) |
Humidity Measuring Range | 20% to 90% RH (Accuracy: ±5% RH) |
Signal Output Type | Digital Single-Bus |
Recommended Sampling Rate | 1Hz (Once every 2 seconds) |
Current Consumption | 0.3mA (measuring) / 60uA (standby) |
Pin Configuration | VCC, Data, NC (Not Connected), GND |
Pinout & Connection Guide
Pin Label | Description | Connection |
VCC | Power Supply | Connect to 3.3V or 5V on Arduino/Microcontroller |
DATA | Serial Data Output | Connect to any digital input/output pin (with a 4.7kΩ–10kΩ pull-up resistor if bare sensor) |
NC | Not Connected | Leave unconnected |
GND | Ground Reference | Connect to System Ground (GND) |
Applications
Smart Home Automation & Climate Control
IoT Environmental Monitoring & Weather Stations
Greenhouse & Indoor Plant Care Systems
Educational STEM Labs & Microcontroller Learning Kits
Portable Data Loggers & HVAC Testing
Quick Setup & Usage Tip
💡 Tip: The DHT11 outputs data via a single-bus protocol. When using a standard sensor library (such as the Adafruit DHT Sensor Library), remember that the sensor requires roughly 1 to 2 seconds between consecutive readings to stabilize and return accurate data.
Hashtags & Search Keywords
#DHT11 #TemperatureSensor #HumiditySensor #ArduinoSensor #IoTProjects #SmartHome #ElectronicsModule #RaspberryPi #ESP32 #EnvironmentalMonitoring #MakerMovement #DIYElectronics #SensorBoard #Microcontroller #WeatherStation
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