Description: 1. DHT11 is a popular low-cost digital humidity and temperature sensor designed for various IoT projects and automation applications. It uses capacitive sensing technology for measuring relative humidity (0-100%) and temperature (0°C to +50°C) with an accuracy of ±2% and ±3°C, respectively. 2. Connections: The sensor has four pins: VCC (power supply, 3.3V-5V), GND (ground), DATA (signals the temperature and humidity data), and a fifth optional pin for power saving mode. It communicates with the microcontroller via one-wire bus protocol, which simplifies communication and reduces wiring complexity. 3. Ease of Use: DHT11 is easy to use, as it doesn't require complex calibration procedures or external components like a heater for temperature readings. The sensor also supports automatic sampling intervals, making it ideal for beginners and hobbyists seeking a simple yet functional IoT solution. 4. Applications: DHT11 is versatile and widely used in various projects such as weather stat
| Specification | Details |
|---|---|
| Sensor Type | Digital relative humidity and temperature sensor |
| Accuracy | ±5% RH ±2°C (at 20-80% RH) |
| Resolution | 8-bit (0.1% RH 0.1°C) |
| Sampling Rate | Up to 1 Hz |
| Operating Range | 0-100% RH -40 to +80°C |
| Supply Voltage | 3.5V to 6.5V (logic level: 5V) |
| Current Consumption | Typical: 2mA (max: 10mA) |
| Output Interface | TTL digital signal |
| Package Type | TO-92 package |
| Weight | Approximately 6 grams |
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