I am trying to build a set of led lights that would scroll left or right for a friend. He bought be the lights and they came with a controller. My first attempt failed even though I tested it and it worked fine. The ULN2003's fried and I had even tested the load on them. The whole thing is supposed to be attached on his car.
There are four sets of lights but each set have a subset of 3 lights and I want each subset to beadle to be turned on individually. Each subsets of LED's runs straight 12 volts. I could not get much information about that lights so I don't know how much current is required by the lights.
I am able to run one set, 3 subsets, threw the ULN2003 without any trouble; additionally, that is the most that's suppose to go threw the ULN2003 at any single point of time.
You can see the basic idea of what I am doing in the diagram. The power supply for the Attiny came off of the original controller for the lights. It was a rectifier diode and a resister. I can't give you any information on those because I can't access it right now(Because I rushed and sent the whole project to my friend...Stupid).
Anyways the UlN2003 fried and I need a replacement that would work for this. Or, what is it that I did wrong? I am a complete NOOB when it comes to this stuff.
Any suggestion?
There are four sets of lights but each set have a subset of 3 lights and I want each subset to beadle to be turned on individually. Each subsets of LED's runs straight 12 volts. I could not get much information about that lights so I don't know how much current is required by the lights.
I am able to run one set, 3 subsets, threw the ULN2003 without any trouble; additionally, that is the most that's suppose to go threw the ULN2003 at any single point of time.
You can see the basic idea of what I am doing in the diagram. The power supply for the Attiny came off of the original controller for the lights. It was a rectifier diode and a resister. I can't give you any information on those because I can't access it right now(Because I rushed and sent the whole project to my friend...Stupid).
Anyways the UlN2003 fried and I need a replacement that would work for this. Or, what is it that I did wrong? I am a complete NOOB when it comes to this stuff.
Any suggestion?
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