Ultrasonic Sensor HC-SR04
$3
DHT11 Digital Temperature & Humidity Sensor Module
$3
The DHT11 is a low-cost digital sensor that provides reliable measurements of temperature and humidity, ideal for weather stations, environmental monitoring, and smart home projects.
The DHT11 is a widely used digital sensor module for detecting temperature and relative humidity. It features a calibrated digital signal output, making it easy to integrate with microcontrollers such as Arduino, ESP8266, ESP32, Raspberry Pi, and more.
It uses a capacitive humidity sensor and a thermistor to measure the surrounding air and outputs the values as a digital signal on a single data line, ensuring ease of use and compatibility with most development boards.
Key Features:
✅ Temperature Range: 0°C to 50°C
✅ Humidity Range: 20% to 90% RH
✅ Accuracy: ±2°C (Temp), ±5% RH (Humidity)
✅ Operating Voltage: 3.3V to 5V
✅ Digital output (single wire)
✅ Low power consumption
✅ Fast response and recovery time
✅ Pre-calibrated, easy to use
Applications:
🔹 DIY weather stations
🔹 Smart home automation systems
🔹 Environmental monitoring projects
🔹 IoT temperature and humidity data logging
🔹 Greenhouse climate control
🔹 HVAC system prototyping
