Monday, June 14, 2010

Sneek Peek

I disassembled my closeup camera into about 30 screws, two super small springs, six lens rings, two controller boards, and over a dozen rods and mechanisms just to expose the front and back sides of the primary and secondary lenses and the CCD.

After cleaning them thoroughly to eliminate the contamination of accidental water damage and actually reassembling the mess, the stepper motor driven zooming mechanism jams! And, what's worse, it would have worked, the LCD screen now shows a crystal clear view, but the camera won't focus for closeups.

Now, with a cheaper digital camera, I've managed to take some pictures of a few of the components used in the LSD-X4. For size comparison, pictured here is a blank 1" by 2" Ultrasound board with new LSD-X4 components placed on top. The two larger chips at top are the FLASH memory chip and one of the microcontrollers used for the main logic control. The lack of leads on these chips (QFN and BGA), minimize outline dimensions, among other things. Coincidentally, these two integrated circuits have the same Y dimension, which at the very least will lend to the aesthetics of the finished design.
The next chip (bottom left) is a 2 channel 24 bit, 96khz digital to analog converter. While this is probably overkill, especially with the limited size of the speaker, it will allow the saber card to be attached to external speakers and exceed CD quality sound. The DAC also possesses cool features like digitally controlled hardware volume control, frequency attenuation, and pop suppression filters which will greatly extend the range of abilities this board will do.
To the right of that is an 8-SOIC switching power regulator. Pretty basic and probably not the final solution, but still much smaller than the regulator used by the Ultrasounds, with higher efficiency and high voltage input allowance.
The USB connector at the far bottom, shows just how much space something so seemingly small really consumes.

Missing from this picture are the other two microcontrollers, two accelerometers, a gyroscopic sensor, the 50-100 or so SMD capacitors, resistors, etc. All of which, will perfectly fill this side of the circuit board, leaving the reverse side for the heavy duty power requirements of the drivers.

I'll be posting some more pictures soon. And, the first video demo.

22 comments:

  1. AWESOME!!!

    But I think that there should be an option with the cable already soldered directly to the board, so that you could install the board in the middle of the saber, screw off the pommel and reveal an USB cable to put in your comp.

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  2. THANKS JESSE! (And sorry about your Camera)

    This is awesome thanks so much for the pics, even if there wasn't much to show I just got so excited because there were pics!

    And Mati, you can make up a USB extender cable (perhaps these could be sold with x4???)

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  3. I don't think enough people would want a USB extender to warrant including one.

    Making a USB extender yourself wouldn't be hard, or even that expensive. For instance...
    http://www.sparkfun.com/commerce/product_info.php?products_id=9614
    Then just scavenge a USB cable that fits and hook the leads up at whatever length you want. You could cut the "mounting ears" off to make it smaller, but it's not that big even as is.

    If you were really clever you could even charge your batteries with it.. not quickly but it could be done. (Most easily if your pack voltage is 5V or lower)

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  4. Thanks for that info Troyollom. Jesse, is there any particular reason you aren't using a miniUSB connector for this board?

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  5. Yes, miniUSB would be the best bet here.

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  6. Jesse, when can we expect a video?

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  7. That is a mini USB =) It's the other chips being smaller that throws the perspective. Or maybe we should use micro USB?

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  8. Yeah, use the ones the blackberrys use on the phone side. This way its easy as pie to get the cable.

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  9. I don't know if you compromise anything going with a smaller cable or not, but I like MiniUSB.

    Anyway, Jesse, I DO look forward to a video. The slow pace is beginning to give me doubts, and all you have to show is a few chips on a US 2.5 PCB.

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  10. Looking good there!
    miniUSB is more standard and would provide a wider connectivity.

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  11. Skott is right.

    People need a video.

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  12. Something I was thinking the other day while rereading the older posts... The CMS system sounds really cool, but why not have 4 outputs instead of three? Many multicolor LEDs have four dies.
    Also, I'm guessing you could script to have any one of the channels be a flash on clash?

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  13. You'd better have some updates soon...


    Many people are getting suspicious about extremely slow pace.

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  14. Jesse, I've been looking back and I just want to clear up some issues. I want your reassurance.

    March 15th
    Said there would be a message board? Where is it?

    March 22nd
    Said there were proto circuits.- June: All we see is components un Ultrasound PCB?
    Said will soon begin fabricating first boards - We haven't seen anything

    March 23rd
    Said they will make a post on sound capabilities - where?

    April 12th
    Said he sent off CAD files to have PCB fabricated. Said from there, he will start programming
    - June: Said they were fabricating PCBs in house?

    April 19th
    Said he was designing a GUI for programming - Can we see?

    June 2nd
    Said there was a prototype board - Where?
    Said 3 months

    June 8th
    Said there would be a size poll. Where?

    Can you clear things up?

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  15. OK seriously if you don't post a message in the next 2 days then it proves this whole thing was a scam.

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  16. Thought this sound board would be too goood to be true, no videos or proper picters. Good thing I didn't pre order. Looks like will have to put up with my current board for a while longer.

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  17. No pre-orders have been placed and we aren't taking any yet. It's still too soon, and we don't want to hold on to anyone's money for a few months.

    Anyway, Jesse's back and there's a new post.

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