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PICList Thread
'Heartrate Sensor'
1999\01\27@071414 by Keith Weber

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Has anyone done any PIC work where they monitored a persons heartrate?  In
particular, I'm interested in being pointed in the right direction for
finding a good sensor or a good method of detecting a persons heartrate.
Also, some special tricks and/or lessons learned would be appreciated.

Thanks in advance,
Keith Weber
spam_OUTkcweberTakeThisOuTspaminav.net

1999\01\27@081428 by g.daniel.invent.design

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infra red through thumb beam,
Small recieved intensitie variations will give the rate. Workable
algorithm should be easily adaptable to other sensor methods.

regards,
Graham Daniel.

Keith Weber wrote:
>
> Has anyone done any PIC work where they monitored a persons heartrate?  In
> particular, I'm interested in being pointed in the right direction for
> finding a good sensor or a good method of detecting a persons heartrate.
> Also, some special tricks and/or lessons learned would be appreciated.
>
> Thanks in advance,
> Keith Weber
> .....kcweberKILLspamspam@spam@inav.net

--
Steam engines may be out of fashion, but when you consider that an
internal combustion engine would require recovery of waste heat by
transfer just before top dead centre then fashion becomes rather
redundant, USE STRATIFIED HEAT EXCHANGERS ! and external combustion.

You heard it first from: Graham Daniel, managing director of Electronic
Product Enhancements.
Phone NZ 04 387 4347, Fax NZ 04 3874348, Cellular NZ 021 954 196.

1999\01\27@090153 by Reginald Neale

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Keith asked:

>Has anyone done any PIC work where they monitored a persons heartrate?  In
>particular, I'm interested in being pointed in the right direction for
>finding a good sensor or a good method of detecting a persons heartrate.
>Also, some special tricks and/or lessons learned would be appreciated.
>

 A couple of years ago, Texas Instruments sold an app kit for their
 TSL230 series intelligent photo sensors. It had a circuit board which
 implemented a heartrate monitor with a serial link to a PC for
 display. The kit also had example PIC code for interfacing the devices.
 I have one somewhere, if you need me to look up the info.

 Reg Neale

1999\01\27@220344 by Eric Borcherding

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Keith,

Mail me privately...

Eric

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