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seperate power supply connection — Parallax Forums

seperate power supply connection

science_geekscience_geek Posts: 247
edited 2009-01-05 12:22 in Propeller 1
i was wondering if it was possible to set up a propellor for some sort of communication without having a common ground, like a servo or esc from a hobby rc plane

Comments

  • StefanL38StefanL38 Posts: 2,292
    edited 2009-01-04 19:18
    Hello,

    whenever the connection is electrical there have to be a common ground otherwise
    the voltagelevels can "flow around"

    Your thread title speaks of powersupplying. There it is the same. If you don't connect grounds
    to each other you have no reliable function.

    If the devices have to be separated electrically use optocouplers or relays

    best regards

    Stefan

    Post Edited (StefanL38) : 1/4/2009 7:41:47 PM GMT
  • Adrian SchneiderAdrian Schneider Posts: 92
    edited 2009-01-05 12:22
    use an optical connection, e.g. an optoisolator.
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