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Electronics help, anyone?

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BobA:
See attached thread for DIY digital signage.

Your whole array of leds should not be powered at once since the scrolling of letters and changing displays require the LED arrrays to be multiplexed.   Do not calculate power by powering all leds with DC and adding them up.   Your method of multiplexing has to be determined first to see what percentage of the time an column of LEDs will be illuminated.

Make Mag

EightBySix:
BobA, I don't know whether to kiss or punch you! That is exactly what I need, only I have spent so much time learning how to make my own i'm kind of gutted that so much has been done already, and way cheaper tha I could have made it for, especially once I cost out making pcb boards etc.

Looking over the spec of the display boards themselves, it still leaves plenty of scope for tweaking and programming though, and will leave me more time to actually make the kit that's going to house it. I'll update my project thread when they arrive.

BobA:
Have fun.  Looking forward to seeing what you come up with.   ;D

No punching or kissing please. ;)

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