Croduino Basic2 processor overheating after 12V connection

TECHNICAL SUPPORT NULA Development Boards
1

Customer:

I connected the board directly to 12V from a battery. The processor immediately got very hot. The same thing happens when I connect it to USB. Do you have any ideas what the problem might be?

Original message (Croatian)

Plocicu sam spojio na 12V direkno iz akomulatorske baterije. Naime, procesor se u istom trenutku jako puno zagrije. Isti slucaj je i kada ga spojim na USB.

Imate li neke ideje u cemu je problem?

Hvala puno!

Originally submitted via email support on 20 August 2020. Migrated to the forum for community visibility.

2

Soldered Support:

The ATmega328P on the Croduino Basic2 and Basic3 boards is rated for voltages up to 5.5V. I’m almost certain it has been damaged by the direct 12V connection.

Original message (Croatian)

hvala Vam na upitu.
ATmega328P koji se nalazi na Croduino Basic2 i Basic3 pločicama radi na naponu do 5.5V. Gotovo sam siguran da je “spaljen” direktnim spajanjem na 12V.