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The wiring diagram below shows how to set up the quick test hardware. ... (DS18B20 + Arduino Uno + Uno ProtoShield). It worked! How to Detect Counterfeit DS18B20s? You may get counterfeit DS18B20 ...
A port for DS18B20 temperature sensor; A port for TSOP1838 infrared receiver module; A APC220 wireless module interface (serial/UART interface) Here is a circuit diagram of the multifunction shield ...
An Arduino measures the temperature of the room via a DS18B20 temperature sensor which then has the servo turn the control knob to the appropriate position, on or off.