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Topic: 12v RGB LED Strip with common cathode (Read 1 time) previous topic - next topic

stevethatsmyname


No I think he is looking for something that works and won't blow up his arduino board.


Hi,

I am puzzled, I have thought about it and can't see how this will damage the arduino if the circuit is flipped to account for common anode instead of cathode...

rough schematic attached.

Grumpy_Mike

Well all the current is being drawn through the 1A series diode in line with the DC input jack, so at 2A that will blow.
That circuit is wrong, you will get no more than 4.3V to drive the LEDs.
So as I said apart from blowing up the arduino and it not working it's great.

KWood

Can someone please post a correct schematic for this project I am currently working on a similar issue.

stevethatsmyname


Can someone please post a correct schematic for this project I am currently working on a similar issue.


problem was solved in this thread:
http://arduino.cc/forum/index.php/topic,62080.0.html

KWood


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