Connect with us

PC controlled relays

Discussion in 'Microcontrollers, Programming and IoT' started by kf5aeo, Jan 8, 2012.

Scroll to continue with content
  1. kf5aeo


    Dec 31, 2011
    im looking for something thats either usb or db9 that i can use a program on the computer to control relays or a series of relays to get 12vdc or 120vac controls.

    Basically i want to use the software to either manually turn relays off or on or have an option to do this automatically like a PLC.

    ive seen some kits at "The Shack" and really have no clue exactly what they were for but got me wondering if there was something like i need.

    im more or less a beginer in electronics , but have built a kit or 2 over the years so building one wouldnt be much of a problem if i had to go that route
  2. jackorocko


    Apr 4, 2010
    This is really rather easy, but you are gonna need some programming knowledge. To do this interactively you will need to have some form of communication from the computer to the uC. This requires a program on the uC to accept the commands sent to it by the computer program.

    If you look up the arduino and serial communication on google you will likely find plenty of examples. Just to give you an idea.
  3. Harald Kapp

    Harald Kapp Moderator Moderator

    Nov 17, 2011
  4. Balrock


    Mar 1, 2012
    Note of warning. I would not recommend learning electronics at "mains" voltage levels. Be very careful!
  5. donkey


    Feb 26, 2011
    there are heaps and heaps of these kits available, and if you have the money complete home automation kits (i would buy a premade kit for anything that runs on mains) if can give us a country we can probably get you a stockist. here in australia I use jaycar and they have kits and instructions for this, i believe they even provide the software.
Ask a Question
Want to reply to this thread or ask your own question?
You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.
Electronics Point Logo
Continue to site
Quote of the day