I am using something like the LM317. Its a three pin 9V regulator. I think its a LM7809CT. I'm not 100% sure though. I have it hooked up through the input jack. My arduino originally came with a 9V battery pack to power the arduino so could someone explain to me why that would work but the voltage regulator could possibly burn up the arduino???
Yes. There was a post today where the user actually vaporized one of the regulator pins.Use an external regulator (such as LM317) and bring the input voltage down to 7.5V.
I have 4 cameras, a DVR and about 5 sensors, also a key pad
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