brushless speed control

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  1. - 11th December 2009, 14:45 #1
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    Post brushless speed control

    i need help how to use brush less speed control with picbasic pro
    to run the motor by emulate rc radio.
    My Hobbies is PicBasic PRO
  2. - 11th December 2009, 16:31 #2
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    I assume that your motor already has commutation circuitry. In that case, you need to build a 'buck' converter and use a PIC with a hardware PWM port to drive the FET. If the motor has a tachometer output, you will need to drive the high side (using a P-channel FET), because most tachometers are ground-referenced.
    Charles Linquist
  3. - 11th December 2009, 16:38 #3
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    no am using a castle brushless speed contol i need to send pulse to the r/c connector to made run the motor like connect to a r/c radio
    My Hobbies is PicBasic PRO
  4. - 11th December 2009, 17:12 #4
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    Wink How's your turbine ???

    Hi, JetPr

    Long time we didn't hear from you ...

    So, do not loose our good ol' habits ...

    I understand from your post you have a brushless ESC and you need a servo signal generator to drive it without using a R/C set ???

    is it true ??? ...

    sooo ...

    http://www.rcgroups.com/forums/showthread.php?t=1151221

    http://www.picbasic.co.uk/forum/show...10&postcount=5

    or simply GOOGLE " Servo driver " ... TONS of answers ( W/ 555, 4011, 324 ... Pics, Atmels, Freescale ... )

    and from a computer

    http://www.rentron.com/PICX5.htm

    Alain
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  5. - 15th December 2009, 23:10 #5
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    Talking

    Thanks for help
    My Hobbies is PicBasic PRO
  6. - 18th December 2009, 23:02 #6
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    Unhappy

    no work PULSOUT PORTB.2,255 i use all number from 0 to 1000 and the speed control no start the motor

    Thunderbird 18 from castlecreations
    My Hobbies is PicBasic PRO
  7. - 19th December 2009, 11:59 #7
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    Angry

    Quote Originally Posted by jetpr View Post
    no work PULSOUT PORTB.2,255 i use all number from 0 to 1000 and the speed control no start the motor

    Thunderbird 18 from castlecreations
    May be simply a look to the user manual ??? ...

    http://www.castlecreations.com/suppo...user-guide.pdf

    and another look to general R/C signals values ...

    From the time you " play " with those toys you should know all that.

    NOW ... not a PbP issue at all !!! ... for sure

    Alain
    Last edited by Acetronics2; - 19th December 2009 at 12:01.
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  8. - 24th December 2009, 03:47 #8
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    how i made the picbasic pro to do this

    The ESC requires a 50Hz carrier signal between 1 millisecond and 2 milliseconds to operate. 1ms is zero throttle and 2ms is full throttle. You will not need to program the speed controller unless your robot requires a different voltage cutoff, brake disabled, or motor rotation direction
    My Hobbies is PicBasic PRO
  9. - 24th December 2009, 15:23 #9
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    Quote Originally Posted by jetpr View Post
    how i made the picbasic pro to do this

    The ESC requires a 50Hz carrier signal between 1 millisecond and 2 milliseconds to operate. 1ms is zero throttle and 2ms is full throttle.
    Which is a standard R/C PPM signal. 1-2ms pulse repeated every 20ms
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