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Electronic Auto rising/lowering CB antenna

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  • Electronic Auto rising/lowering CB antenna

    Ok so it is a pain that i have to put my CB down everytime i enter the garage and up when i leave, so would it be possible to use the servo board that sproggy built to control the antenna with a servo? Anyone have any ideas?
    "A4 Quattro. Rocket Science."

  • #2
    the sproggy servo board does way more than i need it to. I'm just looking for something that would allow me to press one button and have it go one way, and press another to have it turn the other way.
    "A4 Quattro. Rocket Science."

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    • #3
      Ok, how about a 12v stepper motor. But how do i get it to go backward?
      "A4 Quattro. Rocket Science."

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      • #4
        Ok so i found an old DC motor i had in my garage, i tested it and it is really fast at 12v, and fast a 5v. I think it will be way to fast for my needs, is there any simple way to reduce the speed. I was thinking using gears, Little one on the moto, and a huge one on another axis. Is there an electrical way to pulsate the power to give a full voltage but in short bursts to slow it down?
        "A4 Quattro. Rocket Science."

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        • #5
          what happens if i take a relay and run current through the realay, so that it is turning itself on and off very quickly, to create a pluse of current?
          "A4 Quattro. Rocket Science."

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          • #6
            What you're referring to is called "Pulse Width Modulation" or PWM. There are many circuits floating around the net for this.

            It would kill a relay really fast.

            Don't know how else to help, though :/
            www.arbybean.com

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            • #7
              Heh, look at what the first return was on google

              http://www.aaroncake.net/circuits/motorcon.htm
              www.arbybean.com

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              • #8
                cool! any ideas of how i would keep the motor from spining back once the antenna is up. Is there anyway to "lock" the motor without burning it up??
                "A4 Quattro. Rocket Science."

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                • #9
                  Good motors to use for this would be wiper motors. They usually come aready geared, with internal switches that trip when the motor has reached one extreme of rotation. Should be fairly simple to build a relay based circuit to run it.
                  Player: Pentium 166MMX, Amptron 598LMR MB w/onboard Sound, Video, LAN, 10.2 Gig Fujitsu Laptop HD, Arise 865 DC-DC Converter, Lexan Case, Custom Software w/Voice Interface, MS Access Based Playlists
                  Car: 1986 Mazda RX-7 Turbo (highly modded), 1978 RX-7 Beater (Dead, parting out), 2001 Honda Insight
                  "If one more body-kitted, cut-spring-lowered, farty-exhausted Civic revs on me at an intersection, I swear I'm going to get out of my car and cram their ridiculous double-decker aluminium wing firmly up their rump."

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                  • #10
                    wow good thinking~!~
                    "A4 Quattro. Rocket Science."

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                    • #11
                      Ok, i think i can use a servo more effectively than anything else. The question is. How can i control a servo without using the radio and reciver? Is there any type of simple circuit i could use to make it go one way, then flip the switch to make it go the other?
                      "A4 Quattro. Rocket Science."

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                      • #12
                        Just because I head it mentioned, I thought id bring up the fact that I bought one on a whim the other week from bgmicro. http://bgm.bgmicro.com/prodinfo.asp?...ri=MOT&stype=2 haven't applied power to it yet, but its a good sized piece of machinery.
                        -Nick

                        _____________________________
                        Since when is insanity a bad thing?
                        www.mp3vw.com

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                        • #13
                          You just posted 5 times in a row.............
                          RishiD
                          System in Process if funds are available.

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