Temperature and Humidity DHT11 Sensor
Do you need a small yet accurate temperature and humidity sensor? This sensor could give you a temperature reading with an accuracy of +-1°C.
This sensor could operate with a 3.3V to 5V power supply. The operating current is 0.3mA when on use and 60µA on stand-by mode. The temperature range this sensor can detect ranges from 0°C to 50°C, and the humidity it can sense is from 20% to 90%.
You could interface this to your Arduino using one Digital pin, and 2 for the power supply (VCC/GND).
You need a pull-up resistor between the data and 5V to accurate readings.
You could use this with small scale temperature and humidity monitoring projects.
We recommend the DHT22 sensor for a broader temperature range.