I am trying to control the fan speed by sending a PWM to the fan modules. No signal and the fans go full high 5% and it should stay off. I had this working on a bread board but now that I moved it to a pref board I cannot control the fans anymore. This is how I have it wired currently any help would…

Arduino to control vehicle fans via pwm signal

Eddiedellz December 4, 2017, 3:15am 3

Yep it is.

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