I ran into a problem while trying to figure out how-to used a shutdown controller for cars. I am computer builder myself and I know that if the computer hdd (Hard-drive) turn on and off by power switch is not good.

I found this youtube video for a shutdown-controller module. I want to learn what he used in this can anyone tell?

http://youtube.com/watch?v=JCdxgZeacPY

 

Not sure, but it looks pretty cool. Try posting in the AV section in Off Topics. You may get some better answers there.

 

That is a really cool controller in the video. You can message him on youtube if you register there (free). And I'm sure you know about it but just in case here is a great carputer website. http://www.mp3car.com/vbulletin/

 

The whole point of the controllers, besides regulating the voltage, is to signal the computer to shutdown/hibernate and wakeup. When you turn the car off (or switch the carputer off depending on your setup) it signals the computer to shutdown and then actually powers down in a preset time (usually under 1 minute).