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September 6, 2010
about 5 years ago
hi, you should read it with the serial object: 9600 bauds and 8 databits as arguments should work. Then you need to program a bit to get usable infos. Send me a private if you need more help and I can send you the patch I did.
about 6 years ago
Hi, I had exactly the same problem: how could it be that I cannot track the LED that I’m seeing so synchronized with the heart pulse??
After a couple of hours testing I fortunately got the solution, or at least a work around:
1 - set the raw mode: S+0+CR (ascii commands)
2 - get the heart rate data: G+1+CR (id.) as fast as possible (every 60ms is fine for me)
3 - then you get 3 values from the hrmi: status byte, count and heart rate. Count is the key value, since it count pulses and changes every time a new pulse arrive; if you read the heart rate data fast enough, then you’ll get a new count value every time the pulse ticks.
After that everything is a software matter. I used Max/Msp to read the data and in the same software I can convert this changing of count values into impulses that, in my case, trigger a sound.
I hope this can help you.
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