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Author Topic: LED Wiz wiring...need assistance, good grief!  (Read 1956 times)

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ninjasquirrel

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LED Wiz wiring...need assistance, good grief!
« on: April 12, 2012, 08:25:55 pm »
Hey guys, I've got an issue with wiring the LED Wiz. I must have printed off an older version of the wiring schematic for the leds...so at first glance and going by the way buttons are wired, I daisy chained all the negatives of my series together. I have 7 buttons per player and I chained all the negatives of these together and have 1 common wire going back to the LED Wiz. Then each positive goes separately back to the numbered terminals on the wiz with a resistor for each in line. After studying this for awhile and looking around, it seems to me that I've done this backwards. It looks like the +5 volt is an output on the wiz and that they seem to be daisy chained together from the positives and the negative goes back to the individual numbers...or is this wrong too?  :dizzy: I don't even have the pc setup inside the cab yet so I can't really test what I have. All I know is that when I hook my daisy chained common ground to the negative of my power supply and connect the individual positive of each to the 5v out on my power supply, it lights up.
So whats going on, do I have everything backwards and if I do is there a way to fix this without having to rewire/re-solder the whole mess?
Thanks for any input, if you need a pic I'll post one

Mysterioii

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Re: LED Wiz wiring...need assistance, good grief!
« Reply #1 on: April 13, 2012, 08:21:31 am »
I actually haven't even wired mine up yet so I'm sure others will respond too, but it looks like the outputs are active low/current sinks and you've got it backwards.  That's why the RGB LED in the documentation is common anode, meaning one pin is tied high and the R, G and B legs have to be taken low by an LEDWiz output to make it light up.  (A common cathode LED would have one shared ground leg and you would light it up by connecting the R/G/B legs to high).

ninjasquirrel

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Re: LED Wiz wiring...need assistance, good grief!
« Reply #2 on: April 13, 2012, 11:16:41 pm »
That's what I was kind of thinking Mysterioii, I guess there's no way around desoldering and redoing the wiring job...that stinks  :angry: only good news is that I only had one player of the two completed so could be worse.