Pulse Necklace 08July2009: Difference between revisions
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(New page: ==Pulse Choker Hack Notes, July 8th, 2009== * we found 4 different LED/phototransistor parts which would make suitable sensors * we found axial LEDs * ordered both of above from digikey *...) |
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* new epoxy job on radial LED legs, with more surface area we're hoping for a much stronger bond. If this works, axial LEDs will be perfect. | * new epoxy job on radial LED legs, with more surface area we're hoping for a much stronger bond. If this works, axial LEDs will be perfect. | ||
* also trying sm epoxy again | * also trying sm epoxy again | ||
Found a series of useful webpages on sensing heart beat: | |||
[http://www.emant.com/694006.page Optical Heart Rate Monitor] | |||
[http://electronicdesign.com/Articles/ArticleID/6343/6343.html Build Your Own Optical Heart Rate Sensor] | |||
[http://members.shaw.ca/novotill/IrPulseMonitor/index.htm Earlobe Heart Rate Sensor] | |||
Latest revision as of 21:07, 8 July 2009
Pulse Choker Hack Notes, July 8th, 2009[edit | edit source]
- we found 4 different LED/phototransistor parts which would make suitable sensors
- we found axial LEDs
- ordered both of above from digikey
- tested epoxy job on sm led from last time - still quite weak (but much stronger than crimp bead effort)
- new epoxy job on radial LED legs, with more surface area we're hoping for a much stronger bond. If this works, axial LEDs will be perfect.
- also trying sm epoxy again
Found a series of useful webpages on sensing heart beat: