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Pulse Necklace 15Nov2009
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==TENS Pad Electrodes== We tested out the new [http://www.otcwholesale.com/koalaty-32dtan.html TENS pads] today. We didn't buy lead connectors, which were expensive (e.g. $10 for a pair), so we ended up using the leads from the multimeter and attached those by alligators to our Arduino + Open ECG project chip. The readings were quite comparable to that of the red dot, though slightly noisy. The noise might just be due to our code being optimized for use of red dot electrodes. Further work could be done. We also experimented with removing the connectors on the pads. We found strands of white and black thread inside. Only the black threads conducted though. When we connected the cut TENS pads with exposed threads to our circuit, the LEDs flashed randomly. Hence, we'll stick with the red dots for now.
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