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Propeller 1 in a 12 pin DIP — Parallax Forums

Propeller 1 in a 12 pin DIP

TubularTubular Posts: 4,703
edited 2014-03-20 17:38 in Propeller 1
This is another in the series, that has tested fine so far. This one adds a micro SD card, that sits just above the Prop.

It has 12 pins down to the breadboard, on a 0.3" x 0.1" array. The eeprom, ldo regulator and crystal are on the back. The "core" is about 0.65" square. Going down to 0402 passives has helped squeeze a bit more onboard.

The circular arc is the nominal diameter of a US dime (ie this module will "spin on a dime" )
2014-03-20 14.42.36.jpg
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2014-03-20 14.41.34.jpg
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Comments

  • Peter JakackiPeter Jakacki Posts: 10,193
    edited 2014-03-19 21:17
    Tubular wrote: »
    This is another in the series, that has tested fine so far. This one adds a micro SD card, that sits just above the Prop.

    It has 12 pins down to the breadboard, on a 0.3" x 0.1" array. The eeprom, ldo regulator and crystal are on the back. The "core" is about 0.65" square. Going down to 0402 passives has helped squeeze a bit more onboard.

    The circular arc is the nominal diameter of a US dime (ie this module will "spin on a dime" )

    Okay, I'll give you a buck for ten of these "dimes'

    BTW, are you just playing around with these or are you seriously thinking of using them in products or selling them? It seems there's a time and cost factor here to design and manufacture prototypes.
  • TubularTubular Posts: 4,703
    edited 2014-03-19 21:47
    Hi Peter

    It's the former, mostly.

    There is also a significant opportunity cost in *not* having a proven design ready to go when an industrial opportunity arises. The 'patchbox' core (in my avatar) has been good several times, but its not narrow enough for what I've been trying to do recently.
  • WBA ConsultingWBA Consulting Posts: 2,934
    edited 2014-03-19 22:25
    Wow, that is slick! Definitely a niche design, but well done. I have a few project ideas that something this small would be ideal.

    Do you have any high res pics of your 'patchbox' core? That one caught my eye now that you called it out.
  • msrobotsmsrobots Posts: 3,709
    edited 2014-03-19 22:34
    I like this one.

    A little bit bigger and some header left and right of the sd for some more pins.. Perfect breadboard prop.

    would buy some...

    Enjoy!

    Mike
  • Peter JakackiPeter Jakacki Posts: 10,193
    edited 2014-03-19 23:06
    Tubular wrote: »
    Hi Peter

    It's the former, mostly.

    There is also a significant opportunity cost in *not* having a proven design ready to go when an industrial opportunity arises. The 'patchbox' core (in my avatar) has been good several times, but its not narrow enough for what I've been trying to do recently.

    I find it's good to have little prototyping modules that can not only be used to create a prototype but also be used in final products. I've standardized on my "Puppy" format of 1.825" x 0.825" with dual row 16 way pins on either long end. There are many other compatible modules that I have since designed and manufacture and in certain products there are advantages to taking this modular approach.

    Here's an old shot of my original PuppyProp.
    PuppyProp top-m.jpg
    PuppyProp bottom-m.jpg
    PuppyProp top-m.jpg
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    PuppyProp bottom-m.jpg
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  • Cluso99Cluso99 Posts: 18,069
    edited 2014-03-20 17:38
    Nice tiny module Lachlan :)
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