Some interesting thermal images of an Arduino Mega that seem to back up the "VIN should be less than 7 volts" advice we often give. http://australianrobotics.com.au/news/fuelling-your-arduino-why-you-should-use-an-external-power-breakout Rob

Thermal images of a Mega

Coding_Badly May 18, 2012, 6:31am 8

Why does the processor run warmer when the supply voltage is increased? Does the regulator's output voltage increase as the regulator warms?

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