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Turning on a remote sign

I was wondering if it was possible to turn on a remote sign when a trigger is used from a piece of software? If it is I can explain things in a little more depth as we get further into it.
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More about turning remote sign
  1. Given the right software on both ends, and the proper connectivity...anything is 'possible'.

    What are you trying to do?
  2. Raspberry Pi, Apache, and GPIO ports controlling a relay.
  3. USAFRet said:
    Given the right software on both ends, and the proper connectivity...anything is 'possible'.

    What are you trying to do?


    I would like to work on turning on a shipping sign and have it triggered by the shipping software. The sign would be mounted a short distance from the computer and hard wiring from the computers position to the signs location is not an option so it would need to be sent a signal once you process the first shipping order. Once the end of day pickup is done from the shipper and the program is closed, the sign would turn off until the next shipping order triggered it.
  4. Does the sign have power and ethernet to it?

    What can you make the shipping software do? Can you have it perform an HTTP request?

    (sorry; I went to sleep shortly after posting that above)
  5. Someone Somewhere said:
    Does the sign have power and ethernet to it?

    What can you make the shipping software do? Can you have it perform an HTTP request?

    (sorry; I went to sleep shortly after posting that above)


    Sorry I didn't get back to you yesterday but we were away at a family function. The sign does have power but no ethernet. On the software issue I will need to talk with the shippers programmers to see if it can be built into their software. I thought I would find out a few answers to questions before even asking them if they could program a feature into the software that would send a signal when the first package was processed for shipment.
  6. Best answer
    Power but no ethernet means we'll probably need to use some kind of wireless. WiFi is probably the best.

    I'd set an RPi up as a webserver, and use PHP to run a command that turns on one of the GPIO ports when accessed, and either another page to turn it off or wire up a physical button to another GPIO or a latching relay.

    Would it be possible to just have a button that someone hits whenever they run a package through the system? You wouldn't need to bother the software devs.
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