(help) Control a 3-pin PC fan
hello ! i have read lots of post controlling common 12v fan 3rd yellow pwm pin and tried of them without success. the time fan spinning @ 100% i either wrong or fans failed. i use common ground of 12v psu fan , arduino, connect yellow (signal) wire of fan digital pin of arduino according code, , nothing happens again... for instance, if use void loop() { digitalwrite(7,low); } it should stop spinning , right ? please help.. give me guidance, thank ! i try analog write. think digital wright not work application has states high/low. try controlling servo. best of luck! Arduino Forum > Using Arduino > Motors, Mechanics, and Power (Moderator: fabioc84) > (help) Control a 3-pin PC fan arduino