The LM35 temperature sensor and red led are powered with 5V from the Arduino board ... In the next project I will make a temperature protection circuit that will turn off the power of a equipment when ...

Minuscule circuit of the electric AC heater controller presented here is built around the renowned 3-Pin Integrated Temperature Sensor LM35 (IC1) from NSC. Besides, a popular BiMos Op-amp CA3140 (IC2) ...