Comments on: DIY ECG Improvements http://www.SWHarden.com/blog/2009-01-20-diy-ecg-improvements/ A collection of thoughts in technological degradation Fri, 03 Feb 2012 20:26:06 -0700 http://wordpress.org/?v=2.8.6 hourly 1 By: steve chapel http://www.SWHarden.com/blog/2009-01-20-diy-ecg-improvements/comment-page-1/#comment-12003 steve chapel Fri, 10 Dec 2010 15:28:47 +0000 http://www.SWHarden.com/blog/?p=641#comment-12003 Scott, Interested in updating the little ekg a bit? I am getting ready to build the basic circuit and add a bit of gee-whizz to it. I am going to make mine wireless, thus eliminating the ground loop problems you have struggled with. It also allows freedom of movement. I have the resources to make some PC boards so I plan on using surface mount parts wherever possible on the final version. I expect to have a transmitter about the size of a IPOD, and a receiver that attaches to my laptop that is essentially a dongle. Future enhancements may include a voice recorder interface so I can go to the gym and later download the results for analysis. Interested in being involved in this project? I have not been able to contact Jason Nguyen, seems his e-mail has changed. BTW, Great work on your project! Regards Steve Scott,
Interested in updating the little ekg a bit? I am getting ready to build the basic circuit and add a bit of gee-whizz to it. I am going to make mine wireless, thus eliminating the ground loop problems you have struggled with. It also allows freedom of movement. I have the resources to make some PC boards so I plan on using surface mount parts wherever possible on the final version. I expect to have a transmitter about the size of a IPOD, and a receiver that attaches to my laptop that is essentially a dongle. Future enhancements may include a voice recorder interface so I can go to the gym and later download the results for analysis.
Interested in being involved in this project? I have not been able to contact Jason Nguyen, seems his e-mail has changed.
BTW, Great work on your project!

Regards
Steve

]]> By: Greg B http://www.SWHarden.com/blog/2009-01-20-diy-ecg-improvements/comment-page-1/#comment-7297 Greg B Fri, 13 Mar 2009 05:14:06 +0000 http://www.SWHarden.com/blog/?p=641#comment-7297 You mention LM324 op amps, and judging by the number of pins in the picture, look like you're using LM324, but the schematic (bigsch1.gif) shows all the op amps as LF353N?? You mention LM324 op amps, and judging by the number of pins in the picture, look like you’re using LM324, but the schematic (bigsch1.gif) shows all the op amps as LF353N??

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