MP3Car.com - View Single Post - AVR based laptop startup/shutdown controller

Shad0wca7 · 04-01-2008, 06:34 AM

Thanks for the points, all definately something to think about. I'm not quite clear on your meaning of putting a diode between car_remote and +5.. I can't quite see how that works?

I will add a zener to the battery monitor port (4.7v) as well as replace the 7805 with the 4.7v zener as well. Definately a good idea. As for the 4004, I just have access to a lot of free ones of those at the moment and it won't do any harm to overspec that component. You are right that the fuse is a lot larger than it needs to be, worst case I'm sure 200mA would suffice.

04-01-2008, 06:34 AM	#21
Shad0wca7 Newbie Join Date: Sep 2006 Posts: 42	Thanks for the points, all definately something to think about. I'm not quite clear on your meaning of putting a diode between car_remote and +5.. I can't quite see how that works? I will add a zener to the battery monitor port (4.7v) as well as replace the 7805 with the 4.7v zener as well. Definately a good idea. As for the 4004, I just have access to a lot of free ones of those at the moment and it won't do any harm to overspec that component. You are right that the fuse is a lot larger than it needs to be, worst case I'm sure 200mA would suffice.