Quote:
Originally Posted by thescreensavers
Just ordered all the parts for my circuit, should be in later this week or early next week.
Just need to run ignition power to the seat and splice into 2 of 3, fan wires(+12v and PWM) (The fan up top is connected to the bottom one).
I will also be drilling a small hole where you adjust the chairs position for the rotary knob for the fan speed, There is plenty of button/switch real estate,but is is a bit cramped with the door closed.
So the Seat heaters unfortunately that is out of my league they are also PWM controlled but the risk of burning the seat/car fire is too much for me to figure maybe someone else with more electrical knowledge can chime in on that.
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Definitely risky to try to power the heaters without knowing exactly what PWM and control feedback to use. These seats also probably have a thermocouple or two as a feedback loop for the controller I'd think (some heated steering wheels do at least).
It's very easy to burn up the element if not controlled properly, or even worse burn up the seat. Even with having the feedback loops figured out, there are delays due to the time it takes for the elements to heat up and for the thermocouple to heat up to the element's temperature. If that isn't quite right or there's even a small bug in your microcontroller script, there could be permanent damage to your Recaros :(