Mod idea – variable speed

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    • #10869
      DaveF
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      • Posts: 1038

      From my undrestanding the booster controllers send a pulsed signal when the button is not pushed down, and a non pulsed (constant) signal when the button is pushed down.

      Some tech head like Panda might be able to confirm or deny that this idea would work…

      Replace whatever inside the controller dictates the pulsing of the signal with some sort of adjustable (potentiometer/pot) knob or slide so the poulse frequency can be alterred. Speeding up or slowing down the pulses to make the car go faster or slower. Variable speed.

      Would it work though…

      ????????????????????????
      DaveF! 👿
      My track – http://community.webshots.com/album/58669595eliwuK

    • #41574
      Shypo
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      • Posts: 2339

      thats a very cool idea. it does pulse i can say that:)

      panda or micro_amps or Gt-ahh or Jamie or someone who has some electronic skill should help with this otherwise we could all say it would work but most of us wouldnt know where to start

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    • #41573
      DaveF
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      • Posts: 1038

      As long as I go down in the history books for coming up with the idea. The problem would be having flat out provide no pulses, not even super fast ones. But I’m no electronics guru.

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      DaveF! 👿
      My track – http://community.webshots.com/album/58669595eliwuK

    • #41538
      Barrelll
      Participant
      • Posts: 675

      hmmm interesting thinking there dave, really need someone that knows about it tho, so well wait for those guys, sounds alright in theory so far tho lol.

      27MHZ 3.5 Honda Accord (Custom Exhaust and F1 Wing)
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    • #41534
      PandaBear
      Participant
      • Posts: 1866

      Sorry guys, I only learnt all I know (very little) only from Dickie Smith’s.

      Read this though:-
      …all the info a techie needs to turn his/her BCG controller into a mega transmitter

      Somewhere in that article, apart from increasing your TX output for 200m range, is a way to modulate and feed a pulsing signal to the TX for variable control using a PIC.

      Frequency of that pulse is limited by the slow TX/RX chips I believe, but you may be able to get at least a couple of preset steps of speed (if not fully proportional).

    • #41398
      z-beam
      Participant
      • Posts: 2265

      does a wild charg use the same pulses to operate their weapon or do they use an extra channel?

    • #41387
      DaveF
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      • Posts: 1038

      It would be a seperate signal.

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      DaveF! 👿
      My track – http://community.webshots.com/album/58669595eliwuK

    • #41381
      Barrelll
      Participant
      • Posts: 675

      yeh its a seperate signal, you press the button top, just like pressing the boost button, talking about wild char-g’s i found something VERY interesting about them, i just have to research it and ill get back to you

      27MHZ 3.5 Honda Accord (Custom Exhaust and F1 Wing)
      35MHZ 1.0 Battery Modded Castrol Supra
      45MHZ 2.2 Custom Painted Yellow and Black WRX
      57MHZ 2.6 Booster Trueno
      Mini Z Blue WRX (Lights, Gold alloys, Exhaust)
      Mini Z Castrol Supra + all mods (Coming)

    • #41352
      ph2t
      Participant
      • Posts: 2088

      I’m actually working on a proportional controller emulator for both speed and steering. Without going into too much detail you can see the original discussion here.

      Here’s a schematic of what I have developed so far.
      proto1.jpg

    • #41334
      Shypo
      Participant
      • Posts: 2339

      ph2t i giuess you know what you are talking about huh:smiley2:

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    • #41328
      ph2t
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      • Posts: 2088

      the proof is in the pudding as they say.:D

    • #41325
      Barrelll
      Participant
      • Posts: 675

      looks like he does lol , well let us know what you come up with 🙂

      27MHZ 3.5 Honda Accord (Custom Exhaust and F1 Wing)
      35MHZ 1.0 Battery Modded Castrol Supra
      45MHZ 2.2 Custom Painted Yellow and Black WRX
      57MHZ 2.6 Booster Trueno
      Mini Z Blue WRX (Lights, Gold alloys, Exhaust)
      Mini Z Castrol Supra + all mods (Coming)

    • #41310
      ph2t
      Participant
      • Posts: 2088

      hopefully i’ll have some video of my work soon………:approve:

    • #41190
      jamiekulhanek
      Participant
      • Posts: 2563

      Hehe go down in the history books? i think not. I though i was the first that though of that, but not so. I was working on a PWM circuit but i seriously cant b bothered at the moment. The thought of proportional bcg is great.

      The world is mine

    • #41176
      ph2t
      Participant
      • Posts: 2088

      The only thing you own as large as the world is your ego :smiley2:

    • #39981
      ph2t
      Participant
      • Posts: 2088

      Finallly some new info!
      Well I’ve finally got some video of my exploits to show.

      This first example shows how the speed varies. I don’t have a long enough table to show the full range of speed but this is a good enough “proof of concept” thing.

      Download the 900K AVI (DivX) here

      The second video shows a close up of the rear wheels on the car and how the speed of them vary as I change the “pulse width” on the controller. You can see a green light that varies with intensity as more power goes to the motor. I’ve been using that as an indicator.

      Download the 1.2M AVI (DivX) here

      Now I need to confirm the stop/start voltages at the comparator stage and go off and buy some proper resistor values so I can update the schematic with the correct values. Once this is done I willl focus on getting reverse happening as well on the same POT ( as stated before I’ll need a daul-gang POT for this).

      The main thread is located at tinyrc.com

      Let me know what you think….

      ph2t.

    • #39422
      jamiekulhanek
      Participant
      • Posts: 2563

      I think i might rig up a 555 circuit and connect it to the forward switch. That should work.

      If life is a waste of time, and time is a waste of life, then let’s get wasted and have the time of our lives!!

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