Hello. I'm currently undertaking a project to make a non-invasive glucometer using NIR(Near Infrared). I've been digging a lot lately about how to get these data from a human finger, i've been trying some formula using beer lambert's law which has been unsuccessful in giving me a plausible result. …

Posting the code is never wrong. It can at least show how the accessing is done. Some wiring of the circuits, the same. No option/strap etc forgotten? You post gives us nothing to start from.

#include <Wire.h> #include "MAX30105.h" #include "heartRate.h" MAX30105 particleSensor; const byte RATE_SIZE = 20; //Increase this for more averaging. 4 is good. byte rates[RATE_SIZE]; //Array of heart rates byte rateSpot = 0; long lastBeat = 0; //Time at which the last beat occurred long A=0,bee…

[image] noobieG69: MAX30105.h heartRate.h Would you show the links to the library files? I think your code requires old library files. Your code does not compile with recent Adafruit libraries.

Hi, @noobieG69 Welcome to the forum. Thanks for using code tags. :+1: Where does the Glucometer come into the project, at the moment you are just measuring heart beats by the looks of it. I know you can measure blood oxygen with these IR pulse devices, but Blood Sugar? max30102.pdf (895.8 KB) T…

[image] noobieG69: A=-log(irValue/65536) Try dividing by 65536.0 Also, can you share the output you are getting?

Hello Tom. Yes on my code actually i am measuring heartrate. As yo mentioned the sensor is a pulse oximetry sensor but i have searched a bit like i mentioned and it seem that the IR can be used to determine blood glucose too at 900nm. I have seen a lot of complex formula and derivation in many paper…

[image] GitHub - sparkfun/SparkFun_MAX3010x_Sensor_Library: An Arduino Library for... An Arduino Library for the MAX3015 particle sensor and MAX30102 Pulse Ox sensor - GitHub - sparkfun/SparkFun_MAX3010x_Sensor_Library: An Arduino Library for the MAX3015 particle sensor and MAX30102... …

Hi, Have you tried one of the example codes that comes with the library? To prove your connections and communication. What model controller are you using? Tom.. :grinning: :+1: :coffee: :australia:

Glucometer with MAX30102

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noobieG69 October 16, 2023, 7:14pm 4

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Glucometer with MAX30102

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