Cooling Fan Controller Using Temperature Sensor LM35

https://www.electronics-lab.com/project/cooling-fan-controller-using-temperature-sensor-lm35/

The project presented here is a low-cost solution for heat management of the heatsink and various equipment that requires automatic control of a cooling Fan. The project is built using a very cheap LM358 OPAMP. LM358 is used as a comparator, and a trimmer PR1 is provided to set the temperature threshold (Fan ON trigger […]