I made this project because I wanted a way to automatically control the speed of a DC fan according to the temperature read by a LM35 sensor ... area of the Arduino sketch. In the next project I will ...

As you may expect, the brains behind this operation is an Arduino ... In this case, the temperature is read by a LM35 temperature sensor and that value, along with the time, is recorded to ...

Luckily, requisite googling found a “multifunction shield” for the Arduino Uno platform available at a low cost from most internet suppliers. Here is a circuit ... LM35-A4” has an arrow pointing up ...