GraveYard_Killer
New Member
how do i able to measure the rpm of a 12Vdc or 24Vdc fan using a pic16f84a displaying to a 2X16 LCD? what hardware parts do i have to use? does the pulse of a 12V fan is also 12V? do i need a 5V zener diode for this one?
i dont have oscilloscope here at home that's why i don't have an idea what does the fan's pulse(3 wire) to PC's CPU fan power connector look like. thanks
i dont have oscilloscope here at home that's why i don't have an idea what does the fan's pulse(3 wire) to PC's CPU fan power connector look like. thanks