In May 2012, I was contacted by a representative of www.brightledsigns.com, asking if I'd be interested in replacing my
Amber-colored NS500 LED window sign with the 3-color model of the same sign.

Full disclosure: They offered to send me one in exchange for me checking it out and putting it up on my site.



The sign has one high-brightness red and one high-brightness green LED for each pixel. This means it can still create Amber by turning both LEDs on, but be warned, the color is more of a yellowish-green, vs the true amber that the previous sign created. However, I will still interested in trying it out. I figure I can use Amber most places and then green or red in special occasions, even if they may be skirting the Highway Traffic Act.

The green text looks incredibly sharp and easy to read, and I think it's a huge improvement over the old sign. Since it uses the same 5V power supply, mounting brackets, and serial cable, it was a drop-in replacement. However, the serial protocol is completely different and required me to, once again, reverse engineer the protocol. The new sign runs at 4 times the speed of the old one, and has a much simpler protocol, so it is much easier to use and can be programmed much much faster.



Read more and see a video here:
http://www.avbrand...cts/carpc/ledsign/

You can buy this exact sign here: 4x26 Windowfront Three Color Programmable LED sign for $219.
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