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Breadboard-friendly Propeller module? - Page 2 — Parallax Forums

Breadboard-friendly Propeller module?

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  • kwinnkwinn Posts: 8,697
    cbmeeks wrote: »
    I saw that board. While it looks awesome (reminds me of the Teensy), my idea was to have all 40 pins of each propeller in one long header so that it could be plugged into a breadboard easily. I'm sure you could do some soldering magic on the P8XPropBlade2 but the pins don't line up by default.

    No matter how you approach it you will have to either lay out or breadboard the circuit on a PCB. Much simpler IMHO to use Cluso's module and have two of them plug into IC sockets on a board that has the output pins arranged the way you want. You start with two complete working propeller boards for about the same or lower cost than you can build the equivalent, and have the advantage of knowing that that part of your project is working. That only leaves you with laying out the traces between the module sockets and your 80 pin header in the order you want them. That could easily be done as wire wrap or point to point soldered jumpers. Extras like the sd socket would be a bonus at little or no additional cost.
  • WBA ConsultingWBA Consulting Posts: 2,933
    edited 2016-01-07 16:57
    Lacking USB, I was always happy with using my M44D40+ Module on a breadboard with a PowerTwig for the Propeller Education Kit book.
    http://forums.parallax.com/discussion/131867/m44d40-propeller-basic-circuit-module-in-dip40-form-factor

    M44D40%2B_PowerTwig_PEKit_1.JPG
  • For grins, I decided to flesh out my idea for a minimalist SIP module.

    The Diptrace files are attached, for anyone wishing to build such a thing (not sure if/when I would get to it). There is plenty of real estate left to add peripherals - RTC, uSD socket, etc.
    Disclaimer: files offered as-is, and have not been reviewed or tested.


    image3344.png
  • Cluso99Cluso99 Posts: 18,066
    Board looks nice. Size looks to be about 3.5"x1.0".
  • Cluso99Cluso99 Posts: 18,066
    edited 2016-01-08 22:38
    Here is another idea - use 2 cheap 170p breadboards (concept only).

    Can be done with any DIP style pcb that is wider than 0.3".
    1171 x 932 - 361K
  • Cluso99 wrote: »
    Here is another idea - use 2 cheap 170p breadboards (concept only).

    I love it! Being able to use small/cheap breadboards is a big bonus.
  • I found this version on the OSH Park shared projects.

    The user name (bloguetronica) does not look like any familiar characters from the forum, but this individual seems to write about their various projects at http://www.bloguetronica.com/. At first glance, I did not see any reference to this specific board. My inability to read/write Portuguese(?) may have limited me a bit.

    33a74176d19abd55c3d5743fe151d17a.png
  • Mickster wrote: »
    Oh, I meant to show the 32K EEPROM still on the spec.

    That's unfortunate too. Some form of permanent storage is handy in many projects and a 64K EEPROM makes that a simple thing to have.
  • hatallica wrote: »
    I found this version on the OSH Park shared projects.

    The user name (bloguetronica) does not look like any familiar characters from the forum, but this individual seems to write about their various projects at http://www.bloguetronica.com/. At first glance, I did not see any reference to this specific board. My inability to read/write Portuguese(?) may have limited me a bit.

    33a74176d19abd55c3d5743fe151d17a.png
    Hi hatallica,

    It was unfortunate to bump into this post only now. Actually, I'm the sole author of the blog you mentioned. You can find the latest revision of the board here:
    http://www.bloguetronica.com/2016/07/placa-de-desenvolvimento-prop-rev-1.html

    Mind that this board only has 32KB or EEPROM and the overclock mode doesn't work consistently (performance may vary, requires overvoltage and operation is not guaranteed). But the board does work well at 64MHz. Also, works well using many terminal programs (e.g. PuTTY, minicom, and always resets at the start of communication, not at the end).

    I'll launch Prop II soon, as soon as I have those boards assembled. They will have 64KB EEPROM, the same protection features (overvoltage, etc) and the 6MHz crystal will allow 96MHz operation without issues (I hope).

    You can follow the blog's tweeter:
    http://twitter.com/bloguetronica

    Kind regards, Samuel Lourenço
  • Very happy to have you join the discussion, Samuel.

    I have just finally built a variation of the SIP board that I showed above (moved Prop Plug, added SD card socket). It will be a while before I get a chance to perform any testing, though.
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