Car Project - Fading courtesy lights

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Thread Starter


Joined Aug 7, 2013
This is my first post on this forum, however, I thought I'd say hello and introduce myself...

My name is Karl and I'm an electrical engineer by trade, electronics has always been a hobby of mine, although never had the opportunity to make it a living!

I'm currently building an AC Cobra clone, and this is where my project begins, and would like a bit of suggestion as to where to start!

One project I would like to do is faded cockpit lighting. When the sidelights are on, the cockpit lighting to go half brightness, then when the door opens, the cockpit lighting goes full brightness, door closes, half brightness. If the sidelights are off, the lights fade to off.

Would I have to use a PIC or AVR? The fading bit would probably involve some PWM...

Any help would be muchly appreciated! :)




Joined Apr 11, 2010
Unfortunately, your thread may be short lived. Please read the Terms of Service again, particularly section 6 regarding automotive circuits.


Joined Mar 24, 2008
The owners of All About Circuits has elected not to host discussions of automotive electrical system modifications/enhancements due to safety concerns, the potential of legal ramifications and the possible circumvention of vehicle regulations at the state and federal level.

This thread is against the AAC forum rules, Chapter 6, as seen here:

6. Restricted topics. The following topics are regularly raised however are considered “off-topic” at all times and will results in Your thread being closed without question:

  • Any kind of over-unity devices and systems
  • Automotive modifications
  • Devices designed to electrocute or shock another person
  • LEDs to mains
  • Phone jammers
  • Rail guns and high-energy projectile devices
  • Transformer-less power supplies
This can be found in our Terms of Service (ToS)

Automotive modifications of any kind are strictly forbidden. Therefore, this thread will be closed.

Please try to understand the reasons behind this action, and feel free to browse and use the forums.

You might find answers to your questions in one of these forums:

Another good forum that shares many of the same membership is . Good luck.
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