Jrdido sent this great looking arrow board over for me to help out with some electronicals and wizardry.
He already had it built and 5mm leds bussed together, so i just tweaked on the wiring a little and put together a flasher. Wasn't sure what brand board he's building no i didn't want to mess up how they tie together.
I love those sunshades around the lights.
Bring the thunder!!!
Guts
I didn't know your planned wire routes, switch location, or what power source to set up for. So i'll throw in some heatshrink to help you finalize that stuff once you get to it.
I like the flash rate i have hooked up, but i've set the others a little different if you like those more. Also your boards have some solder bars on the outputs to help make swapping easier if you want.
Hopefully this setup makes more sence when you get it in your hands