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Topic: Arduino and RS232 getting very hot with external power supply (Read 615 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

"Hello, I must be going..."
"You gotta fight -- for your right -- to party!"
Don't react - Read.
"Who is like unto the beast? who is able to make war with him?"
Hey - it's "bipolar transistor" or "junction transistor"; "BJT" is just stupid.

CrossRoads

Concern. Sounds like power is reversed from the Adapter.
Designing & building electrical circuits for over 25 years.  Screw Shield for Mega/Due/Uno,  Bobuino with ATMega1284P, & other '328P & '1284P creations & offerings at  my website.

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