Any of you might have an idea why the receiving device might be skipping a beat (or more?). The pulse sensor local light is indicating an accurate heartrate, but the light in the paired Imp is all over the place.
And did anyone come across any Android/ Iphone-based heart rate monitors that can send https to an Imp?
If you’re sending each beat from one agent to another, then you’re not going to get a very regular pulse; each transaction will be an HTTPS request which takes a while to set up, and will be non-deterministic
You could just measure the average heartrate and send this number across to the receiver, which synthesizes a regular heartrate at the correct bpm (and slews smoothly for changes).
Xively logs data points (and you can pass a timestamp) so that doesn’t really apply; the data’s value is not determined by the exact time it was delivered, but rather the value itself and passed timestamp.
@jwehr: The sensor is basically an oximeter. It works best through the fingertips. But you can also hook it up to the earlobe. Not the most beautiful, but…
There are some Arduino libraries for use with Polar heart monitor, so I assume it could be used with the Imp as well. It would be a little less conspicuous.