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Using PULSIN to decode VEX rcvr pulse train - Page 3 — Parallax Forums

Using PULSIN to decode VEX rcvr pulse train

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  • TimWTimW Posts: 2
    edited 2007-12-15 07:38
    Beau,
    Would it be possible to put this together in a nice little package explaining it all to a Boe-Bot Basic Stamp noob like myself? It would be greatly appreciated! I recently bought a Boe-bot off ebay and it included this VEX transmitter/receiver for free. I have gone through the book included, but would really like to get remote control working.

    So if my under standing is correct though, if i were to build the hardware described and ran that code I should be able to control the two servos on the boe-bot?

    Thanks for any help!!
    ~Tim

    Post Edited (TimW) : 12/15/2007 7:44:15 AM GMT
  • Beau SchwabeBeau Schwabe Posts: 6,566
    edited 2007-12-17 06:57
    TimW,

    Sorry I didn't reply sooner... I have been out of town.... But I think your question can be answered in this thread. If you follow this thread, you will see that the Stamp is quick enough to interpret the VEX signal without external hardware if you read the pulses in a "Bit Bang" input fashion. (see link) In other words, if you read the VEX pulses in a LOOP statement, then the stamp is just on the edge of being too slow to read the VEX signals.


    http://forums.parallax.com/showthread.php?p=685297

    ▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
    Beau Schwabe

    IC Layout Engineer
    Parallax, Inc.
  • TimWTimW Posts: 2
    edited 2007-12-19 05:14
    if possible, could someone provide me some links on how to do rf control with the boe-bot (well, basic stamp 2)? It would be greatly appreciated.

    I am currently struggling with getting the VEX rf pair working with the stamp. I have the ppm running to pin 0 on the stamp and vss/vdd as they should. However when I press any buttons on the vex controller none of the values of the channels change? Should they? I would assume so...

    Anyway, any links about how rf works would be helpful, anything directly related to the basic stamp 2 would help more so, or ultimately this configuration.

    Thanks much,
    the young grasshopper
    ~_~
  • jivematjivemat Posts: 6
    edited 2007-12-26 18:38
    I understand the code to make the Boe-Bot respond to the Vex transmitter but how do you hook it up physically? Do you need to buy a receiver for the Boe-Bot or can you rig the vex receiver?
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