Maximum Current Consumption of a Mega

Hi,

Does anyone know what the maximum current consumption of an Arduino Mega or Robotdyn Mega is?

Cheers!

No one can know this. Even with all ports high, all pins shorted to ground, on a full-swing crystal, running as fast as possible, etc. no one can give you a valid answer. All the official documentation discusses "current consumption" in a set of various parameters. Anyone's guesses or postulates as to the devices maximum current draw, would only be estimates at best.

However, if you start with a 30 amp power supply, and stress one until you blow up the unit, you might be able to get close to your answer.

Since it's a controller, it's better to consider it in terms of what loads you might place on it, and keep those loads within the Absolute Maximum Ratings spelled out on page 355 of the datasheet.