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Topic: Arduino and RS232 getting very hot with external power supply (Read 587 times) previous topic - next topic

Narwhal

I currently have the Redpark iOS Breakout Pack connected to my Arduino, when I run it through the USB it doesn't get hot however when I use a 7.5V 1.2A rated DC power supply both my Arduino and the RS232 TTL to Serial get incredibly hot (within under a minute), is this cause for concern or just normal?

Runaway Pancake

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CrossRoads

Concern. Sounds like power is reversed from the Adapter.
Designing & building electrical circuits for over 25 years. Check out the ATMega1284P based Bobuino and other '328P & '1284P creations & offerings at  www.crossroadsfencing.com/BobuinoRev17.
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