I wanted to use the Cigarette Lighter Receptaclecigarette lighter receptacle of a car as the power supply for the Arduino Mega. From 12 V V, I will convert it to a 7 V V supply, but my problem is, what must be the minimum amperecurrent or wattageelectrical power to be fed in tointo the Arduino Mega?
And are there any things I have to do to the Arduino Mega 2560 for it to function well in supplying it a 7 volts volts supply from a car?