heart rate specs

| 2 Comments
Thanks Ali,

Here's what I could find in the vernier specs pdf:

How the Hand-Grip Heart Rate Monitor Works
The Hand-Grip Heart Rate Monitor consists of a set of hand grips and a plug-in
receiver. The hand grips are held, one in each hand, by the individual whose heart
rate is being monitored....
....The plug-in receiver connects to any of
the interfaces listed above
...

Here's what I would need: http://www.vernier.com/go/golink.html
Here's the type of connector plug I'm working with: http://www.vernier.com/accessories/access.html?DIN-BTA&template=basic.html

...The transmitter detects each heart beat through the
electrodes on the two hand grips with
ECG accuracy and transmits the heart rate
information to the plug-in receiver with
the help of a low frequency
electromagnetic field. The plug-in
receiver wirelessly receives the
transmission, and passes a 3-volt pulse for
each heart beat detected to the Vernier
interface.

Receiver range 80-100 cm
Transmitter transmission frequency: 5 kHz ±10%
Receiver current consumption 30-55 μA
Transmitter operating temperature 0-60°C
This sensor is equipped with circuitry that supports auto-ID. When used with
LabQuest, LabPro, Go! Link, SensorDAQ, EasyLink, or CBL 2, the data-collection
software identifies the sensor and uses pre-defined parameters to configure an
experiment appropriate to the recognized sensor.

2 Comments

not knowing all the necessary details,
this sounds promising.

whatever this is:

"the transmitter detects each heart beat through the
electrodes on the two hand grips with
ECG accuracy and transmits the heart rate
information to the plug-in receiver with
the help of a low frequency
electromagnetic field. The plug-in
receiver wirelessly receives the
transmission, and passes a 3-volt pulse for
each heart beat detected to the Vernier
interface. "

could perhaps be sensed with the arduino's analog inputs.

i suggest that you wire it up and just see what you're getting out of your heart-rate-grip thingy's cables. do it by connecting the appropriate wire (which would that be?) to one of the arduino's analog input pins and seeing what numbers you're getting.

a

a

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