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IndustryArena Forum > OpenSource CNC Design Center > Open Source Controller Boards > open source Atmel/arduino PID motor control
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  1. #49
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    Okay guys nice work so far..
    First thanks God I know arduino and i can work. I also know about little electronics...

    Now my plan,
    1- Make a standalone Controller board with ATMEGA 328P-PU chip installed
    2- Using 3-wire LCD and 5-keys keypad (DIY)
    3- The parameters can be changed with Menu driven interface

    Further i am living in a part of world where we have 220VAC so needs help..How can we use BT139 with 220VAC?
    http://free3dscans.blogspot.com/ http://my-woodcarving.blogspot.com/
    http://my-diysolarwind.blogspot.com/

  2. #50
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    hello Khalid
    i'm 220 volts also
    bt139 is rated 800 volts
    should be enough??

    adding the parts for a stand-alone shouldn't be too hard

    I look forward to seeing your circuit!

  3. #51
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    Aug 2006
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    i am 110 so i will figure that out, standalone should be easy i agree also.

    Mike i am curious if i can just buy an octocoupler with a triac built in, Again i am not an expert but learning the best i can. Thanks for all the help. I am currently planning on copying the thread starters circuit for now so i can learn how it works then perhaps change. My end plan is to remove the chip from the arduino also. I have done that before so should not be an issue for me.

    Since your both 220 i am curious if either know what i would have to change for 110. From my reading it doesnt look like anything really.

    Tim

    like a MOC 30043 with triac

    edit i see the MOC3043 doesnt have enough amperage

  4. #52
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    Quote Originally Posted by timmyb199 View Post
    i am 110 so i will figure that out, standalone should be easy i agree also.

    Mike i am curious if i can just buy an octocoupler with a triac built in, Again i am not an expert but learning the best i can. Thanks for all the help. I am currently planning on copying the thread starters circuit for now so i can learn how it works then perhaps change. My end plan is to remove the chip from the arduino also. I have done that before so should not be an issue for me.

    Since your both 220 i am curious if either know what i would have to change for 110. From my reading it doesnt look like anything really.

    Tim

    like a MOC 30043 with triac

    edit i see the MOC3043 doesnt have enough amperage
    lower mains voltage isn't a problem as such
    just that you will need higher current for the same power
    so just check the current rating of the triac
    BT139 is rated 2 amps = 200 watts at 110 volts

    BTA08 is rated 8 amps = 800 watts at 110 volts

    what sort of spindle are you looking to drive?

  5. #53
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    My "spindle" is a Rigid router. I cant imagine it pulling more that 8 amps. The websites posted earlier today are really helping me understand what the circuit is doing. Only thing i dont understand is the 12 volt side. I know why its thre but unsure where he is getting the 12 volts.

  6. #54
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    take a look at the link posted by orkki on the previous page
    Using Hardware Interrupts to Control A.C. Power with Arduino

    there needs to be a 12 volt transformer in there

  7. #55
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    I've updated the circuitry:
    a) to include the LCD
    b) to add a DIAC

    any interest?

  8. #56
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    Quote Originally Posted by mmcp42 View Post
    I've updated the circuitry:
    a) to include the LCD
    b) to add a DIAC

    any interest?
    sure that be great, i kinda knew how to add the lcd. but id be happy to look at another schematic. I apologize i did not see a 12 volt transformer in the circuitry. my mistake

    thanks

    tim

    P.S i downloaded eagle so i dunno if u have a file i can look at in that either

  9. #57
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    EAGLE files on the previous page
    I'll upload the LCD circuits in the morning
    it's sleepy o'clock now
    gnite
    Mike

  10. #58
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    Instead of the opto couplers and triac could we use a SSR?

    Like this is for 110. It's 5 bucks. But might simplify circuit

    http://www.sharpsma.com/webfm_send/313

  11. #59
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    I also found this which uses the arduino for the cross checking

    AC Dimmer Circuit

  12. #60
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    here's the zip of the EAGLE files with LCD added
    rather than including the LCD itself on the shield I have shown a 16-pin header

    do check the A and K connections, the original (from OP github) had them the wrong way round

    I've also attached the files without the LCD
    Attached Thumbnails Attached Thumbnails SpindlePidLcdCopper.bmp  
    Attached Files Attached Files

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