Our biosensor array team worked late into the night on Saturday at Pumping Station: One.  With the hackerspace challenge build deadline on Tuesday night, it's definately crunch time!

 

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Thankfully we've got a nice array of working sensors (in the order of signal speed):

 

  • EKG
  • Pulse oximeter
  • GSR (Galvanic Skin Response)
  • CO2
  • Temperature

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Dan yet again played the role of test subject:

 

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The QRD1114QRD1114 sensor from SparkFun contains an IR LED and a compatible phototransistor.  It dectects pulse via the change in the amount of infrared light reflected by finger as blood pumps through it.

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We observed a great correlation between EKG and pulse oximetry signals:

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Cheers,

Drew