The use of a Temperature and humidity sensor sending (or communicating) analog values to a Sparkfun RedBoard, which will have a code written to it, that’ll tell certain digital pins to go high when the sensor sends it values below or above the threshold stated in the code. These digital pins are connected to solid state relays. A solid state relay having a high signal at its controls (1,2), tells it to turn on its load (3). The Loads for the system shown are a heater, fan and humidifier.
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