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Old 06-04-2018, 10:16 PM   #11
davepl
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Join Date: Aug 2006
Location: Redmond, WA
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Re: Any electronics nerds interested in Arduino/Atmel?

Thanks for the help so far! I got the "transistor helping to drive a relay" circuit working as you described it above. I added an LED to it as well...

https://www.youtube.com/watch?v=CYKVmS9dIoE

Neither the chip nor the relay gets warm, and all seems well! It's not obvious because its out of frame, but the red and black probes go to my 12V power supply and the yellow and green go to the coil leads on the relay,

BTW, when I mentioned this to a friend, he said "Why don't you just use a solid state relay"? Will they support 30A?
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Last edited by davepl; 06-05-2018 at 09:37 AM.
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