DHT22 Temperature and Humidity Module IDC Static resistant

Static resistant

It has I2C bus interface to communicate with the micro controllers

Configurable baud rates

and 52 on the Mega

56MHz RFID IC Key Tag

DHT22 Temperature and Humidity Module IDC Static resistantThe DHT22 is a basic, low cost digital temperature and humidity sensor. It uses a capacitive humidity sensor and a thermistor to measure the surrounding air, and spits out a digital signal on the data pin (no analog input pins needed). It's fairly simple to use, but requires careful timing to grab data. The only real downside of this sensor is you can only get new data from it once every 2 seconds, so sensor readings can be up to 2 seconds old. Simply