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LED Cardiac Simulator — Parallax Forums

LED Cardiac Simulator

TymkrsTymkrs Posts: 539
edited 2013-10-16 17:59 in Robotics
Hi everyone! After nearly 1.5-2 years of learning how to program, using the Propeller, learning how to design/create boards, and getting a little push from the Micromedic competition - I present, Tymkrs HeartMe, the LED Cardiac Simulator!

[video=youtube_share;VLxsLt2oI4A]

If interested in more details about the project: http://www.tymkrs.com/kits/led-heart-simulator/

And if interested in getting one (we're only waiting on boards now): https://www.tindie.com/products/tymkrs/tymkrs-heart-me-v2/

This is also my micromedic video entry :)

Comments

  • TtailspinTtailspin Posts: 1,326
    edited 2013-07-11 21:47
    This is a really neat project Tymkrs,:thumb:
    I will show this to my daughter in law, she is a cardiovascular nurse too. I know she will be interested.
    Thanks for sharing. and good luck with the Micromedic contest.


    -Tommy
  • TymkrsTymkrs Posts: 539
    edited 2013-07-12 15:04
    Wahoo! Cardiac nurses unite! Let me know what she thinks :) and thanks for the luck!
  • PublisonPublison Posts: 12,366
    edited 2013-07-12 17:38
    That project turned out awesome!

    I have been following in the back row for a while, but I am proud of you being able to put the concept together, the programming, and the actual PC board in record time, for a NooB. :)

    Great entry for the contest!

    Jim
  • Beau SchwabeBeau Schwabe Posts: 6,566
    edited 2013-07-12 19:31
    Tymkrs,

    Great project !!! I wonder what it would have to say about my heart rhythm after biking 26 miles which is what I've been averaging a day .... half of it in the morning and then the other half in the evening. I'm sure a lot better off now then I was two months ago. Areas of the trail I had trouble with, I just breeze through now. :-)

    PS. I meant to get you that circuit that will let you read your heart beat via an IR sensor passing through your finger tip. I think I might have a better biasing circuit for the IR that makes that even easier.
  • dmagnusdmagnus Posts: 271
    edited 2013-07-13 06:07
    Great job, neighbor! I think you've got a winner there.
  • TymkrsTymkrs Posts: 539
    edited 2013-07-15 20:07
    Thanks guys! Nice job on the biking Beau - whee! And whenever you wanna send that circuit over, I'm more than happy to put that into pcb form :D. And dmagnus, I sure hope so ;)

    Here's a link btw showing the leds a bit brighter:
  • Beau SchwabeBeau Schwabe Posts: 6,566
    edited 2013-07-18 10:57
    Tymkrs,

    Thought you would be interested in this.... :-) Sorry it took so long. I wasn't happy with the original front end detector circuit that I was using. This one is much better. My resting heartbeat clocks in at about 55 to 58 beats per minute! Yay!!


    http://forums.parallax.com/showthread.php/149216-DEMO-IR-Heartbeat-detector
  • TymkrsTymkrs Posts: 539
    edited 2013-07-18 17:25
    Sweet Beau! I'll take a look into it :)
  • frank freedmanfrank freedman Posts: 1,983
    edited 2013-07-31 19:10
    Seriously nice project. Do you plan on making this a kit or otherwise available? Lota biomeds could probably use this for BMET prep. Nice for CRES candidates to. To quote a once famous broadcaster, "like childrenn everywhere we always ask for more." Any possibility of getting this with a 3, 5 (or pushing it) perhaps a 12lead connect for ecg systems testing. Would love to be able to slap this on a CT, ultrasound or physio monitoring system for quick testing, for example waveform display and gating on an angio CT study.

    B.Z. on a really great project

    Frank
  • TymkrsTymkrs Posts: 539
    edited 2013-08-04 01:42
    frank freedman wrote: »
    Seriously nice project. Do you plan on making this a kit or otherwise available? Lota biomeds could probably use this for BMET prep. Nice for CRES candidates to. To quote a once famous broadcaster, "like childrenn everywhere we always ask for more." Any possibility of getting this with a 3, 5 (or pushing it) perhaps a 12lead connect for ecg systems testing. Would love to be able to slap this on a CT, ultrasound or physio monitoring system for quick testing, for example waveform display and gating on an angio CT study.

    B.Z. on a really great project

    Frank

    Thanks Frank! Um, so the heart portion is available: https://www.tindie.com/products/tymkrs/tymkrs-heart-me-v2/

    In terms of the rest of it, I'd love to make it a kit, but I haven't be able to find a good source of solenoid + valve plate combination that's easily/cheaply acquired. And I'd also love to try doing some form of ecg from this- I am sure the Propeller could handle it. I just don't know how to start doing it haha. I've been meaning to look at previously done ecg projects by folks here, but it may have to wait until after the Micromedic contest ends :). Glad you like it!!

    Addie
  • FrannyFranny Posts: 127
    edited 2013-08-10 13:51
    What's the purpose for this?
  • PublisonPublison Posts: 12,366
    edited 2013-08-10 15:48
    Franny wrote: »
    What's the purpose for this?

    It was a submission to the National microMedic Contest:

    http://learn.parallax.com/contest/micromedic
  • TymkrsTymkrs Posts: 539
    edited 2013-08-10 19:50
    Franny wrote: »
    What's the purpose for this?

    So besides it being a project for Micromedic as Publison has said - it was a project that allowed me to combine my cardiovascular surgery career with my electronics hobby. It's an led heart simulator, and has already been used to help student nurses learn about rhythms and patient assessment!
  • jchipjchip Posts: 6
    edited 2013-08-10 20:21
    Hi: Congrats, its a great project. I could be interested in part of it: the audio generation part (not the leds) to be included in one of my projects, so, what can we do for that to happen?
  • TymkrsTymkrs Posts: 539
    edited 2013-08-10 21:34
    jchip wrote: »
    Hi: Congrats, its a great project. I could be interested in part of it: the audio generation part (not the leds) to be included in one of my projects, so, what can we do for that to happen?

    I just used PlayWAV.obj from the OBEX, made a little wav file with Audacity to sound like what I wanted it to sound like, and then referenced this forum topic: http://forums.parallax.com/showthread.php/148063-MISSING-documented-circuit-setup-for-propeller-audio-output for the circuit. Hope this helps!
  • jchipjchip Posts: 6
    edited 2013-08-11 13:17
    Tymkrs wrote: »
    I just used PlayWAV.obj from the OBEX, made a little wav file with Audacity to sound like what I wanted it to sound like, and then referenced this forum topic: http://forums.parallax.com/showthread.php/148063-MISSING-documented-circuit-setup-for-propeller-audio-output for the circuit. Hope this helps!

    Here it comes the problem: I have not problem with audio circuits nor with WAV player Spin, feel very at easy with them, but have not a clue how to make the files with the cardiac sounds... .... Can you sell, donate or whatever your wav files?? sorry but it is my only resource down here in Peru!! :)
  • TymkrsTymkrs Posts: 539
    edited 2013-08-11 17:22
    I'm not sure where to host the wav file but I can walk you through the steps of how to do it. So first, get Audacity:

    http://download.cnet.com/Audacity/3000-2170_4-10058117.html

    O    n the top, click generate, and I think I chose Risset Drum. Didn't change any of the settings, just clicked on it. You get this wave file. But it's clearly too big and not saved in the format that the PlayWAV obj wants. So I took the majority of the end of the tail and after selecting it, I cut it:

    Image1.png

    And then I zoomed in and kept cutting until I got the first maybe....0.01s worth of sound? And you can cut whereever you'd like for the sound you want. Then I just looked at the format that the code wanted me to save it in.

    For the circuit, I would recommend a stereo circuit. The ones I've linked are mono and didn't sound as good as the one that's used on the PropBOE, and that's in their schematic files here on the website. Hope this helps!
    Image1.png
    1010 x 546 - 28K
  • TymkrsTymkrs Posts: 539
    edited 2013-10-16 17:59
    For anyone interested, the heart portion is now for sale:

    https://www.tindie.com/products/tymkrs/tymkrs-heart-me-v2/
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