This system allows for remote control of a 12v dc fan by using the digital output of an arduino microcontroller to switch the fan on or off through a relay module. Turn on relay (fan on). Turn off the relay (fan off).
Show message fan is on. From my understanding, you charge or discharge the coil to make the mech relay work, same thing, you put high or low voltage on the gate terminal to make a mosfet work. Learn how to control a fan using arduino uno, relays and mosfets.
Cooling fan for my testing you can choose different 12v output one. This very simple arduino control transistor switch for controlling cooling fan. I want to avoid a bulky relay, hence the transistor as switch. Build a temperature or motion controlled cooling system.
Find this and other hardware projects on hackster.io. We’ll cover essential hardware considerations, discuss the interfacing of common components such as transistors and relays, and provide detailed code examples showcasing both pwm. I've wired the fan as shown in the uploaded diagram. How to program for arduino to turn fan on/off.