[forgottenmindset]

Hey, I've got a freeduino v1.20 with an integrated 7805 voltage regulator.

Can I just plug the mpguino setup directly to the car's 12v accessory circuit, or do I need to use a cell phone charger.

I've got a 9v output dc cigarette charger rated at 1 amp

But I read somewhere that you should only use chargers rated from 100 to 500 mA

I thought current has to be drawn in so I don't know why it would matter to have it limited to 500mA