piggyback

Hello folks, I'm planning to build a new piggyback with a lot of possible functionalities and some upgradeability for the technically inclined - and looking for your feedback. Quick introduction. If you want to cut to the real deal, scroll down. I'm hobbyist, with a degree in both electrical...

Fuel controller or old Atari 2600 parts? http://item.mobileweb.ebay.com/viewitem?itemId=111163308715&cmd=VIDESC Thoughts?