Espruino JavaScript
measurement of heart with ...? #1673
Replies: 5 comments
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Posted at 2017-03-16 by @gfwilliams You can measure it very simply by looking at the change in light that passes through your finger. For example this was a quick hack I did a while ago that uses your webcam to measure your pulse. It's not great, but in the right conditions (light behind your finger) it does work! https://gfwilliams.github.io/HeartRate/ So just a light on one side, and a light sensor on the other. However you can buy more professional units which (I believe) have two lights and sensors at different wavelengths. One is a wavelength that is affected by blood, one isn't - and you can then just compare the two sensor readings over time to get a pulse. |
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Posted at 2017-03-16 by luwar Breakout board with MAX30100 |
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Posted at 2017-03-16 by @gfwilliams Thanks - that looks great! :) |
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Posted at 2017-03-16 by oesterle @OwenBrotherwood, This sensor from Adafruit is small, and will work on a fingertip, or clipped to an earlobe: It uses 4mA at 5v, and will also run at 3v, with just 3 wires – power, ground, and analog output. The hardware is open source, and detailed here: |
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Posted at 2017-03-17 by ClearMemory041063 Some useful links: https://github.com/xcoder123/MAX30100 https://github.com/sparkfun/SparkFun_MAX3010x_Sensor_Library https://www.sparkfun.com/products/14045 Also lots of Max30100 boards on Amazon, prices all over the place. |
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Posted at 2017-03-16 by OwenBrotherwood
Can I measure the heart or pulse with some form of something, for example puck.js and capacitive touch?
Trying for some gimmics
I will google latter for basic information, but if anyone has "the answer" (not 42) then feel free to show interest or input :)
Edit:
Changes Gordon, this is great :) http://forum.espruino.com/comments/13526821/
Edit:
Thanks for all the input: I get back with what results from this in a new message
EDIT:
WE REALLY NEED "LIKE" FOR THIS FORUM ...
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