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Wrong remote control unit?

Hi Everyone,

Recently bought the Technic Rally Car #42077 and some power functions bits with the intention of motorising it and think i've bought the wrong remote control - #8879. Is that unit only meant for trains, not proving any real directional control like left/right/forward/reverse, just doing speed control on a set direction? If so, then I'll need #8885? I have an IR receiver unit.

Comments

  • SprinkleOtterSprinkleOtter Member Posts: 2,731
    Yeah, the speed controller isn't much use for any RC except trains. It'd be like trying to use a steering wheel for a gas petal.
  • monkeyhangermonkeyhanger Member Posts: 2,781
    Thanks Sprinkleotter! Thought tgat would be the case. Serves me right for ordering 26 hours without sleep (following my Mexico holiday. Will have to get it sent back as I have no use for it.
    SprinkleOtter
  • datsunrobbiedatsunrobbie West Haven , CTMember Posts: 1,436
    edited December 2018
    You might want to hang on to that remote. There's many videos on You Tube where folks have strapped those two remotes together, using #8879 for speed and #8885 for steering.

    shows the dual remote at 25 seconds in
    sid3windrrd1899omnium
  • monkeyhangermonkeyhanger Member Posts: 2,781
    Would that remote combo require each remote on a different wavelength and 2 IR receivers?
  • nexandernexander Glasgow Member Posts: 872
    edited December 2018
    That's the one I use, it gives nice stepped control over speed and steering when combined a servo.  Having the cut offs mean you can recentre the steering easily and stop suddenly if need be.

    Adding on a bar to turn (or something similar) helps
  • datsunrobbiedatsunrobbie West Haven , CTMember Posts: 1,436
    Would that remote combo require each remote on a different wavelength and 2 IR receivers?
    Yes, there would have to be two IR receivers, one for each remote.
  • SprinkleOtterSprinkleOtter Member Posts: 2,731
    Would that remote combo require each remote on a different wavelength and 2 IR receivers?
    No, just the one receiver. You would have one half of the receiver power the drive, the other the steering.
    datsunrobbie
  • datsunrobbiedatsunrobbie West Haven , CTMember Posts: 1,436
    ^I stand corrected. I had no idea you could actually use one IR receiver to control two motors.
  • monkeyhangermonkeyhanger Member Posts: 2,781
    I didn't think you'd be able to pick up the output from 2 different remotes on the same wavelength setting (both on the same 1-4 selection) onto the one IR received. Knowing that you can makes things much easier.
  • PaperballparkPaperballpark UKMember Posts: 3,388
    edited December 2018
    Yes you can. Have both on the same channel, but use one controller for the blue side and the other for the red side. Bear in mind that both will be able to control both red and blue though, so you'll have to find a way to block the controls.
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