The DHT22 sensor uses a proprietary single-bus communication protocol that can send and receive data with calculated timing pulses. How Does the DHT22 Works? If you are using an original DHT22 sensor then it will have a NTC thermistor and the sensor module inside it, but most of the senso...
Software: A software library is provided to interact with the hardware Benefits of Shields No wiring needed Circuit is pre-wired Connections to Arduino are fixed by stacking Simple to use Library takes care of complicated details Connected Pins Pins on the bottom of the shield connect to pins of...
TMP pin provides the temperature output which is a simple voltage divider through a thermistor as well as a resistor. The output of this pin is high at lower temperatures & decreases at high temperatures. The RV pin is the reference voltage used for the calibrated output. This pin does not ...