DHT11 Humidity Temperature Sensor Module
10 in stockDigital temperature and humidity sensor module with single-wire interface, perfect for weather monitoring projects.
Product Description
The DHT11 is a basic, low-cost digital temperature and humidity sensor module. It uses a capacitive humidity sensor and a thermistor to measure the surrounding air and outputs a digital signal on the data pin. It's perfect for beginners and cost-sensitive projects. Technical Specifications: - Op...
Product Specifications
| - Operating Voltage | 3V to 5V DC |
| - Operating Current | 2.5mA (max during measurement) |
| - Temperature Range | 0°C to 50°C |
| - Temperature Accuracy | ±2°C |
| - Humidity Range | 20% to 80% RH |
| - Humidity Accuracy | ±5% RH |
| - Sampling Rate | 1Hz (one reading per second) |
| - Response Time | < 6 seconds |
| - Resolution | 8-bit for humidity, 8-bit for temperature |
| - Interface | Single-wire digital interface |
| - Dimensions | 15.5mm x 12mm x 5.5mm |
| - VCC | Power supply (3V to 5V) |
| - GND | Ground |
| - DATA | Digital data output |
| - NC | Not connected |
| - Data transmission | 40-bit data packet |
| - DHT11 | Lower cost, lower accuracy, smaller range |
| - DHT22 | Higher cost, higher accuracy, wider range |
| 4. Add pull | up resistor (5kΩ to 10kΩ) between DATA and VCC |
| - Arduino | DHT library (Adafruit) |
| - ESP32 | DHT library |
| - Raspberry Pi | Python DHT library |
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