Is there a way to turn off fan voltage on startup? I’m using a fan pin for pwm and it works. I just need to disable the voltage on startup as it defaults to 10.3 volts on startup.

On power up, it is not yet under firmware control, so you’ll get what the hardware does. It’s hard to change that. You might need to just put in a delay circuit so that the firmware gets a chance to boot up before the pin means anything to the tool. You could maybe use a gate chip so that it needs (…