Arduino Heart rate monitor using MAX30100

[@puneitsingh]

Works like a charm! Thank you for the great work.

[@gorgar6059]

Doest this sensor require to be attached to the finger or can it be any part of the body? Thx

[@hamzanat5381]

thank you so much sir for your work, but i dont understand how to calculate the averege (formul? )

[@vicesde]

Very good project I'm doing it with a max30102 sensor and it does not work. The sensor does not turn on. You can help me thanks.

[@ChunkySteveo]

Cool project, and a great help for me in getting my Max30100 working. Just a question - you have a "filterweight" variable set to 0.5. On all test scripts and yours, my bpm were coming back about half. Setting your adjustable variable "filterweight" to 1.0 set the bpm correct, but I am not sure why my max30100 is so far out to begin with?? Any help or pointers? I did have to put two 4.7k pull up resistors onto the i2c lines, but I assume this would just make it communicate or not - not skew the results. The oxygen levels are correct too - about 93-95% etc, so that value is right, it's just the bpm coming back halved?? Am I dying??!! haha Steve

[@MakerUSA]

You are right about the pull up, I am sure that should not make any difference. It's been a while since I did this I would need review it to remind myself about the values. To be honest I just played around with the numbers till I started getting reasonable results.

[@ChunkySteveo]

Express-Reviewed thanks for getting back to me. You're rigjt, reading the GitHub documents the IR amp value needs to be adjusted till you get accurate readings. I got there! Great little script!

[@MakerUSA]

Glad to be able to help.

[@pradeepsahoo7243]

Stephen Ludgate Hi Steve, did you finally get it to work? I have been trying this for sometime and even followed Oxullo instructions but it still didn't work perfectly. Did you ground the RD and IRD pins? Did you use the INT with pull-ups? What current value did you use for the IR sensor? Thanks in advance.

[@dominicswpoazo3410]

what should I do, if I want to change the 128x32 OLED to 128x64OLED?

[@jungcookie7041]

How to connect this on esp8266

[@jdsr1986]

Can you do the same with Max301002, i am trying but your code doesnt work for it

[@bikinngakak9836]

if i want to use max30102. what the source code?

[@COLDYSHOP]

Give the library to the project, I can not find them anywhere!

[@MakerUSA]

github.com/oxullo/Arduino-MAX30100

[@pradeepsahoo7243]

For the OLED: downloads.arduino.cc/libraries/github.com/olikraus/U8g2-2.20.13.zip

[@AhmadAnsari-hw6ez]

@MakerUSA 1.Need some help when i am connecting ird and rd to common ground the red led doesn't light up, but if i keep ird open the red is light up.When red led light up the sensor didn't get initialised. And on running test module the red=0 and ir=0. And do i have to connect interrupt to any digital pin and if it has to be pulled up or down. 2.After done uploading "Place finger on the sensor" prints on Serial monitor but after this nothing to be happen. What I do for?

[@MakerUSA]

Are you following the instructions linked in the video ? I don't fully understand the issue you are having.

[@AhmadAnsari-hw6ez]

1.I am using Arduino nano.If I am connecting the wires like you did, the sensor does not respond. It got respond when I connect the less than 4.7k(220 ohm)pullup resisters to SDA and SCL pin but red lED does not light up. 2.The red LED lighten when it goes to the GND alone but didn't happen any thing i.e it does not measure the Beat or Spo2 . 3.when I connect both IRD and RED LED to the common GND ,the RED Led does not light up but sensor is in working mode. 4.May I connect the RED and IR LED to the common GND or only we have to connect the RED LED to the GND. what we have to do in any case?

[@pradeepsahoo7243]

Try connecting the PINS like below: VIN -> Nano 5V GND -> Nano GND INT to Nano Digital PIN 2 SCL to Nano A5 SDA to Nano A4 Now try the following... In the setup part add the following line of code before pox.begin() pox.setIRLedCurrent(MAX30100_LED_CURR_7_6MA);

[@YARii7]

please help me ,,,,, i use oled 6 pin spi and i need the code to with mu oled please

[@stathiseleuthriou1629]

hey i am trying to do something like you are project can i have the code only for pulse oximeter and not for the screen the one with serial print i mean.

[@stathiseleuthriou1629]

sorry you got in serial also in githum thank you for you are help . the library that you used is the max30100 ?

[@mostafakenawy9482]

I followed the instructions in the github but the code does not proceed after place your finger could someone tell me what is the problem ??

[@pradeepsahoo7243]

add the following line in the setup before pox.begin() pox.setIRLedCurrent(MAX30100_LED_CURR_7_6MA);

[@Villealvarado]

friend try to do it but I send the following problem, MAX30100_Heart_Beat:124: error: stray '\357' in program pox.setIRLedCurrent(MAX30100_LED_CURR_7_6MA); ^ MAX30100_Heart_Beat:124: error: stray '\273' in program MAX30100_Heart_Beat:124: error: stray '\277' in program exit status 1 stray '\357' in program

[@omoivo6525]

Pleas How ist conected Chip max? Sda, Scl,vin and grd ! Right

[@MakerUSA]

Yes, the OLED and the sensor module share the I2C bus.

[@arivuselvirajaganesh5020]

Can you please post the code you have used??

[@MakerUSA]

Hi, The code is linked in the video details. It's on Github

[@marinolimatorres4024]

Necesito lo programación por favor

[@hotmatualubis8771]

Can I do this with arduino pro mini?

[@MakerUSA]

Hi, yes it can be, completely certain about pro mini 328P, but I think 168P should work too. regards.

[@hotmatualubis8771]

MakerUSA when I try compile a program why there are many error message like : in file include from C : arduino\libraries\max30100_pulseoximeter.h:27:0?

[@MakerUSA]

What's the error message, difficult to say what exactly is the issue you are having.

[@fitrianurazizah6601]

can i do this project with max30102?

[@MakerUSA]

Hi, You should be able to, I have some of those modules like these ones www.ebay.com/itm/392044272961 that I will be testing soon.

[@BenRush]

Seriously, if you have an o2 sat of 92, you should get yourself checked out.

[@jagadeeshn7449]

can i get max30100 code of esp32 idf

[@MakerUSA]

I need to work on that will try and update soon.

[@makersengineering530]

Full of Errors.Code Doesn't work.

[@MakerUSA]

Care to explain? I obviously compiled it and had it working. what errors are you getting?

[@sid280]

Without seeing the code, your oxygen level is saying 93%, so either you, your code, or the sensor are sick.