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RC remote and car circuit help

Discussion in 'General Electronics Discussion' started by Aubrey Champagne, Jul 3, 2016.

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  1. Aubrey Champagne

    Aubrey Champagne

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    May 8, 2016
    Hello! I am very new to electronics, and don't know a great deal of knowledge on the subject except the basics. I have been constructing the electronics to an rc car that I thought would be fun to build. I have already made the real life model after these schematics and it doesn't work. I have been trying to figure out where i have went wrong, but I can't spot anything. If i could have some debugging help that would be much appreciated. The schematics are below.
     

    Attached Files:

  2. Harald Kapp

    Harald Kapp Moderator Moderator

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    Nov 17, 2011
    Possible sources of trouble:
    • Your first image shows analog sticks, but the HT12E is meant to be used with push buttons on these pins.
    • Using the RC oscillator can result in a mismatch of transmitter and receiver frequencies. Do yo have a means to verify these do match?
    • The L293D is incorrectly wired. You need to connectboth driver iputs to use the driver outputs.See the datasheet.
     
  3. Aubrey Champagne

    Aubrey Champagne

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    May 8, 2016
    Ok. Is there a correct pin I should use for the analog sticks, and the analog sticks only have one output so how should I hook that up to the L293D?
     
  4. Harald Kapp

    Harald Kapp Moderator Moderator

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    Nov 17, 2011
    I don't think the chip you use is suitable for analog sticks at all.
     
  5. Aubrey Champagne

    Aubrey Champagne

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    May 8, 2016
    Would you suggest any other motor controller that would work?
     
  6. Harald Kapp

    Harald Kapp Moderator Moderator

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    Nov 17, 2011
    I'm sorry, that's not my league.
     
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