Hello, I connected the mega to 12v at the external PS connector and a big red component aside a button of the GSM board exploded. Anyone knows what it is and what the cause could be. [Screen Shot 01-23-18 at 10.41 PM.JPG]

Arduino Mega and Arduino GSM shield 2 on top

patpin March 12, 2018, 12:21pm 3

nobody knows?

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