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Re: VEX motors question
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Originally Posted by Alex.Norton
it doesn't make any sense to me to use a separate cable for PWM when the power goes through the controller. I would simply mean needing extra circuitry in the motor that the controller already has.
Since in the code for the vex you specify whether you are using a servo or a motor I could see the third wire being nothing (if the motor doesn't have a feed back loop) for a motor and a feedback loop for the servo because a servo needs 3 wires. They simply used a third wire on the motor so it had the same connector and port.
Just a thought, I don't know a lot about the subject but that makes more sense than have a separate PWM signal.
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Your logic makes sense, but when you are poor like me and only have the bare radio kit.... I never saw any way to discern between motor and servo, and variable power to a servo would be...well...odd...I stand by it being PWM and that being used for speed control, but I admit I can't explain why the code allows to select, any ideas on this?
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Matt Krass
If I suggest something to try and fix a problem, and you don't understand what I mean, please PM me!
I'm a FIRST relic of sorts, I remember when we used PBASIC and we got CH Flightsticks in the KoP. In my day we didn't have motorized carts, we pushed our robots uphill, both ways! (Houston 2003!)
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