TeleHealth Module

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The 25 dollar BioSign/TeleHealth

Plugs into left USB, LineIn, LineOut
USB for power
- USB ADC?
  - If so, AVR/Amtel > *
  - http://www.atmel.com/dyn/resources/prod_documents/doc3302.pdf
  - http://www.atmel.com/dyn/resources/prod_documents/6120s.pdf
Manual-Switched input selector
Comprised of
- Pulse Oximeter
  - IR LED
  - Red LED
  - Photodiode
  - Op-Amp Chain
    - Outputs into line-in
- Stethoscope
  - Audio pickup(mic)
  - Audio amplifier
    - Outputs into line-in
- Blood Pressure Cuff
  - Electroconstrictive polymer
  - Audio pickup(mic)
  - Audio amplifier
    - Outputs into line-in
- Electrocardiogram
  - Analog Filters
  - Op-Amp Chain
    - Outputs into line-in

How To Do It

reuse Op-Amp Chains
- LM324
reuse Audio Amp circuits
- Patch into existing audio I/O channels?

Resources

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