Wanco vertical mast arrow board

[frizzen]

Skeeter, awesome let me know what you think when it arrives.

Jrdido, You'll have a pm soon.
Hmm, adding remote controlled arrow changing is going to add some complexity.

My quick & dirty idea on that would be to add a tiny servo that could just operate a "microswitch". Then you could hook up the output from the timer to the 'COM' pin, then one direction arrow to the 'NO' pin, then other direction to 'NC' pin.

You'd either need a radio that lets you bind 2 RX at same time and has more channels than your (truck?) needs, or maybe get something like what the Rock Crawlers use as an Add-a-Channel style Winch Control?
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https://youtu.be/kEPff6pSmpU
It's way overkill but if it must be stand alone and remotely switchable, you could grab something like a heyok add a channel, to run a servo, to push a switch to go between Left and Right directors
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I'm sure someone else has a nicer / cleaner way to do it, but i just heard the problem and i'm a hack that likes discrete components or off the shelf parts.