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HowTo: Ledtriks Led Panel
( Robert Jordan)
Step 10 : data connections
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| | In the top right corner of the controller board you will see a number of pads. the left set looks like a "L" and the right set looks like a mirror of the same "L". The in side is the left side. From you computer port the top pad of the "L" should connect to the gnd on your computer port which is one of the following pins 18-25. The next pad below that one should connect to the clock signal from you computer or pin 1. The next pad down is the data for the columns and should be connected to pin 2 on your computer. the next down is the strobe signal and should hook to you pin 14 on the port of your computer. The leg of the "L" is the data for Rows. The left most one should be connected to pin 3 , the next pin 4 , pin 5, and then pin 6 for the last of the four. The backwards "L" is for the next controller if you daisy chain them and the connections would flow the same to it from these pads. The last connections here is the GND and +5v connection just to the left of the other connections. Make sure you provide your power here and use appropriate gauge wire. The system can pull up to 4 amps so take that into consideration. Do no try to feed the power through the cat5. It will cause issues with distance by adding noise to the data and it's too much current to be pulling through cat5 in my opinion.
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