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  1. Replies
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    Re: Heart rate sensor MAX30102

    sorry for my late response. I was really busy these days.

    thanks for the info. I will do some changes and tests. :)
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    Re: Heart rate sensor MAX30102

    I did an other test on a different person. Those info are from a woman.

    Richard have done a very good job up to now. I think the LPF should not be so aggressive.

    9176



    LPF RED IR...
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    Re: Heart rate sensor MAX30102

    Richard this is already lots of work, and i dont know how to thank you for all this.

    I believe that this will be useful for many people in the forum in the end. (even if noone else is involved).
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    Re: Heart rate sensor MAX30102

    hehehehe, sure i will do that. Just to check what will be the values on a different person, as i know my average Heart pulses are always around 82-90 Bpm.

    I will find someone with much lower and...
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    Re: Heart rate sensor MAX30102

    Richard,

    i think i post #41 and #44, the graph was a bit better in terms of highs and lows. Dont know if the last configuration and modification in LPF made it easier to identify those highs and...
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    Re: Heart rate sensor MAX30102

    Richard thanks for your effort.

    These are the new results base on the last change on IR values.



    8744 8760 9019
    8745 8759 8995
    8743 8740 9001
    8744 8754 9012
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    Re: Heart rate sensor MAX30102

    Just transfered those values from the PICKIT serial terminal to excel. No conversion.

    9160
  8. Replies
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    Re: Heart rate sensor MAX30102

    just tried. Let me see the values on the excel. :)



    0 8028 1F5C
    8053 8551 8259
    8076 8533 8249
    8100 8563 8254
    8120 8541 8251
    8140 8553 8244
  9. Replies
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    Re: Heart rate sensor MAX30102

    wrong info above, as i captured ascii and not hex values.
    I'll try to fix that on the following message.
  10. Replies
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    Re: Heart rate sensor MAX30102

    For everyone info,

    found this interesting article.

    https://morf.lv/implementing-pulse-oximeter-using-max30100
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    Re: Heart rate sensor MAX30102

    results from PICKIT UART TOOL at 9600.



    RED IR
    8875 9120
    8859 9127
    8867 9128
    8868 9127
    8871 9116
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    Re: Heart rate sensor MAX30102

    I guess you have this one

    9153

    https://www.teachmemicro.com/max30102-an-improved-heart-rate-sensor-for-arduino/

    I also have 2 of those, but in the schematic the input voltage is 3.3V to 5V. ...
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    Re: Heart rate sensor MAX30102

    Richard which sensor did you have? Could you please let us know? for avoiding it in the future.

    Based on cardiovascular medical graph, the post #44 and post #49 looks fine.

    I think #49 it is a...
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    Re: Heart rate sensor MAX30102

    That's really impressed Richard.

    Im still working step by step on the code, im still at an early stage.

    Just need to understand the methodology.
  15. Replies
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    Re: Heart rate sensor MAX30102

    Thanks Richard,

    just wanted to understand it. Now it is clear.
  16. Replies
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    Re: Heart rate sensor MAX30102

    there is an adress of 7 bits....then PBP is taking care for the Read or Write bit.

    The following is from the manual of the MAX30102.

    9144

    But in the program under the registers we are...
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    Re: Heart rate sensor MAX30102

    wow, ok little by little because i need to undestand what you have done.

    apart from that 63 bpm is quite ok and looks healthy.
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    Re: Heart rate sensor MAX30102

    Richard,

    looking at your code,i'm learning lots of things.

    All the registers you have are constants. And that is what i've thought also in the beggining.


    ;----------------------- ...
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    Re: Heart rate sensor MAX30102

    most of the drivers i've seen over the net are using the following...


    1, what led pwr to use : 0x1F about 6.2 mA
    2, what led pwidth to use : 411 which is 18 ADC BIT RESOLUTION based on the...
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    Re: Heart rate sensor MAX30102

    once again you are right. I will change the names in the code as well.

    One more question. What is the difference on the following?

    With the [] and without them. I noticed that i get completely...
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    Re: Heart rate sensor MAX30102

    thanks Richard,

    i will read carefully your code and will come back because i have couple of questions.

    In the begging i got confused the way you use addr and reg names inside the I2Cread or...
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    Re: Heart rate sensor MAX30102

    Ok the FIFODT, FIFO DATA is not the one we are looking for.

    Just tried to see what could i get by requesting it using the following code. Also the code is not right but that is why i would like...
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    Re: Heart rate sensor MAX30102

    up to now this is the code and the output.....



    '*********************************************************************************
    @ ERRORLEVEL -306 ; this command prevents the compiler to...
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    Re: Heart rate sensor MAX30102

    well noted,

    1. Changed the crystal and used only the interal



    2. i've changed the circuit from 3.3V which was the output of the Display, and supplied the circuit with the PICKIT2 5V. I...
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    Re: Heart rate sensor MAX30102

    Thanks for the reply.

    I will give it a try as i would like to make this sensor work. I just need some guidance if possible.

    1. I will remove the external crystal, less part the better, in...
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