12Temperature-Controlled Fan
In this project, we’ll use an LM35 temperature sensor to turn a fan on automatically when the temperature is too high.
PARTS REQUIRED
Arduino board
Breadboard
Jumper wires
LM35 temperature sensor
5V single-channel relay module
12V mini computer cooling fan
9V battery snap and battery
HOW IT WORKS
The LM35 temperature sensor (shown in Figure 12-1) senses the temperature and sends that measurement to the Arduino in voltage. The Arduino converts this voltage value to temperature in degrees Celsius and then converts this ...
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