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My Propeller Doublestack w/cheese — Parallax Forums

My Propeller Doublestack w/cheese

Oldbitcollector (Jeff)Oldbitcollector (Jeff) Posts: 8,091
edited 2008-12-16 23:26 in Propeller 1
I've been pondering the idea of using a second Propeller as a dedicated sound board.
So I figured that Protoboards would stack nicely, and I was right...

I removed the DC connector, the 1000uf cap, and shortened the height of the power switch.
The bottom board is powered by connecting the 5v/Vss lines connected using male/female pin headers.
The top switch turns on both units and both LED's light.

OBC

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New to the Propeller?

Getting started with a Propeller Protoboard?
Check out: Introduction to the Proboard & Propeller Cookbook 1.4
Updates to the Cookbook are now posted to: Propeller.warrantyvoid.us
Got an SD card connected? - PropDOS
doublestackwcheese.jpeg
921 x 602 - 70K
bottomboard.jpeg
768 x 576 - 80K

Comments

  • Timothy D. SwieterTimothy D. Swieter Posts: 1,613
    edited 2008-12-08 13:51
    Sweet!

    ▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
    Timothy D. Swieter, E.I.
    www.brilldea.com - Prop Blade, LED Painter, RGB LEDs, uOLED-IOC, eProto for SunSPOT, BitScope
    www.tdswieter.com
  • Cole LoganCole Logan Posts: 196
    edited 2008-12-08 14:15
    Thats pretty cool
  • Oldbitcollector (Jeff)Oldbitcollector (Jeff) Posts: 8,091
    edited 2008-12-08 14:34
    I've added s few things over Sunday..

    8 and 9 are tied together on both sides for prop-2-prop communication.
    P10 from the bottom board is routed to the sound circuit with P10 from the top board.
    P11 from the bottom board has it's own sound circuit and is now routed from the bottom
    to the additional RCA jack on the top board.

    I'm really pleased how easy it was to tie these together.

    Here's some more shots.

    OBC

    ▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
    New to the Propeller?

    Getting started with a Propeller Protoboard?
    Check out: Introduction to the Proboard & Propeller Cookbook 1.4
    Updates to the Cookbook are now posted to: Propeller.warrantyvoid.us
    Got an SD card connected? - PropDOS
    stereo_output.jpeg
    768 x 576 - 62K
    between.jpeg
    768 x 576 - 61K
    underside.jpeg
    768 x 576 - 63K
  • GeorgeCollinsGeorgeCollins Posts: 132
    edited 2008-12-09 00:02
    This is really cool. What prop object or code are you using for communication between the two props? Do you have to do any circuitry beside just connecting two pins?

    Thank you for sharing this.

    George
  • Oldbitcollector (Jeff)Oldbitcollector (Jeff) Posts: 8,091
    edited 2008-12-09 00:07
    Other than two connections for audio and two more for communication, no.
    Everything is directly connected without issue.

    I'm fiddling with FullDuplex serial using HSS audio driver. I'm shooting for a decent
    audio output from the bottom board, freeing up most of the resources of the top one for other things.

    OBC

    ▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
    New to the Propeller?

    Getting started with a Propeller Protoboard?
    Check out: Introduction to the Proboard & Propeller Cookbook 1.4
    Updates to the Cookbook are now posted to: Propeller.warrantyvoid.us
    Got an SD card connected? - PropDOS
  • TheWizard65TheWizard65 Posts: 91
    edited 2008-12-16 23:04
    Sorry I've away for a while, with good cause of course. So I will add my koodos for a job well done OBC. jumpin.gif
  • soshimososhimo Posts: 215
    edited 2008-12-16 23:26
    The Arduino has a similar concept called "shields" - only they use a non standard pin spacing just to be different I suppose (or to lock you into one implementation which is odd for an "open source" project like the Arduino). I always thought the modularity of that concept was pretty cool and have seen some very creative usages.
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