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  1. #1
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    Default Prop48LSD daughterboard

    The Prop48LSD daughterboard is basically a Ren48LSD that is driven via the PropController vs the combination of six PICs. It will implement the same power regulation circuit and output drivers as the Ren48LSD and the 32-channel dimmer circuit from Ben but expanded to 48 channels. I have a board layout mostly complete but it's still a work-in-progress. It will be just a bit smaller than the current Ren48LSD.

    Greg (Mr. Helix) was kind enough to provide me with some test code to expand the 32-channel code to 48 and flipped outputs to drive the transistors. I have the circuit running on a proto board with this code and so far so good. The plan is to implement Bit Angle Modulation (BAM) dimming and individual channel dimming curves so it should have really smooth/linear fading properties when done.

    I will be updating this post with schematic/board changes.

    Prop48LSD-Schematic.pdf

    Prop48LSD-PCB.pdf
    Last edited by DynamoBen; 06-04-2011 at 02:07 PM. Reason: added daughterboard note
    [COLOR=#000080][B][I]Brian[/I][/B][/COLOR]

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  2. #2
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    Default Re: Prop48LSD

    Do you plan on bumping the frequency a lot higher since you're running BAM?

    Will there be the possibility of a DMX firmware?

    Josh
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  3. #3
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    Default Re: Prop48LSD

    Quote Originally Posted by chilloutdocdoc View Post
    Do you plan on bumping the frequency a lot higher since you're running BAM?
    The BAM driver I wrote runs about about 300Hz so it should look nice and smooth.

    Will there be the possibility of a DMX firmware?
    This is just a daughterboard so it will work with both the DMX/RS485 and Ethernet board.
    DMX, RDM, ArtNet, sACN, and RDMnet...the future of DIY Christmas.
    Designer of the PropController an open source single-board hardware platform designed for lighting and prop control.

  4. #4
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    Default Re: Prop48LSD

    I should make that clear - can you change the title of the thread to 'Prop48LSD daughterboard'?
    [COLOR=#000080][B][I]Brian[/I][/B][/COLOR]

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  5. #5
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    Default Re: Prop48LSD

    Quote Originally Posted by budude View Post
    I should make that clear - can you change the title of the thread to 'Prop48LSD daughterboard'?
    Done.
    DMX, RDM, ArtNet, sACN, and RDMnet...the future of DIY Christmas.
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  6. #6
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    Default Re: Prop48LSD

    why don't you place a row on 4way (RGB +V) MTA-100s behind the RJ45s. You don't have to fit them if you don't want to use them.
    [B][I]Matt[/I][/B]

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  7. #7
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    Default Re: Prop48LSD

    Quote Originally Posted by Matt_Edwards View Post
    why don't you place a row on 4way (RGB +V) MTA-100s behind the RJ45s. You don't have to fit them if you don't want to use them.
    Well - that's what I was looking at - however the spacing gets off pretty quick since there would be 16 connectors vs 12 connectors (or 8 vs 6 if looking at one side) - that is my reference to a possible routing issue. I haven't placed them yet so maybe it will be a piece of cake so we'll see...
    [COLOR=#000080][B][I]Brian[/I][/B][/COLOR]

    [COLOR=#ff0000]Christmas in San Jose! - [URL="http://www.christmasinsj.com"]WEB[/URL] - [URL="https://www.facebook.com/ChristmasInSanJose"]FB[/URL] - [URL="https://www.youtube.com/playlist?list=PL1W78s7liEQEE0ed7WSyLF7B6j3lBX43w"]VIDEOS[/URL]
    [/COLOR][COLOR=#800080]Halloween in San Jose! - [URL="https://www.facebook.com/pages/Halloween-in-San-Jose/356280784428581?ref=tn_tnmn"]FB[/URL]
    [SIZE=1]2015 Halloween Show - Planning now - hopefully some house projection...
    2015 Christmas Show - 5x E681-12, 1x 6804, Ren48LSD, 3x RenSS16, 1x Falcon16v2 (w/expander), 24x90 WS2811 pixel MT (James MT Strips), 12x DIYC Floods, SuperPixelStar, 3x Pixel Arches, PixaBulb House outline
    [/SIZE]
    [/COLOR][SIZE=3][COLOR=#008000][I]Ignorance is Temporary [/I][/COLOR][COLOR=#800080][I]- [/I][/COLOR][COLOR=#ff0000][I]Stupidity is Forever[/I][/COLOR][COLOR=#800080][I]...[/I][/COLOR][/SIZE][I][COLOR=#ff0000]
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  8. #8
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    Default Re: Prop48LSD

    Quote Originally Posted by budude View Post
    Well - that's what I was looking at - however the spacing gets off pretty quick since there would be 16 connectors vs 12 connectors (or 8 vs 6 if looking at one side) - that is my reference to a possible routing issue. I haven't placed them yet so maybe it will be a piece of cake so we'll see...
    Actually the problem may be easier than you think. 4x 4way MTA100 connectors for every 3x RJ45? That shouldn't be too challenging.
    [B][I]Matt[/I][/B]

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  9. #9
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    Default Re: Prop48LSD daughterboard

    Just make sure you click reply on a post with the new thread title.
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  10. #10
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    Default Re: Prop48LSD daughterboard

    hmmm.... a LSD with E-net.... good idea!

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