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LEDBlinky + LED-Wiz... will this do what I want?
SpatzST:
What do you mean by 80 connections? EDIT: Oh you mean 20 additional ground wires, right?
Each LED-Wiz is 32 outs, so I can get two, for a total of 64 outputs, of which I'll use 60 (rgb for 20 buttons), and maybe somepoint down the line light up coin buttons or something for the remaining 4. Will I need anything else? Additional power supply or is USB power enough?
dkersten:
I can't answer the power supply question because I don't use the LEDWiz. But yes, the extra 20 connections are ground (or +5v, depending on the type of LED).
SpatzST:
Well, I pushed the button (bad pulled the trigger pun). 20 Electric Ice 2 buttons with the Helio9 LED's, two LED-Wiz's, and some terminal connectors to clean up the grounding wires. Now we wait, anxiously.. very very anxiously.
RandyT:
--- Quote from: SpatzST on July 10, 2014, 02:50:01 pm ---What do you mean by 80 connections? EDIT: Oh you mean 20 additional ground wires, right?
--- End quote ---
They would be +5v wires. Pretty much all RGB LEDs used in this type of application will be common anode, AKA +V. Just wanted to make this clear to save folks from needing to re-wire things if they get it wrong :)
--- Quote --- Additional power supply or is USB power enough?
--- End quote ---
As you will be using 20 of the Helio9's, you will definitely need external power (i.e. from your PC supply.) But I think you will find them to be well worth that little extra effort when you see how bright and colorful they are, even in a well lit room. ;)