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Published 20 hours ago • verified publisher icon vrano714

MAX30100 ?

Open titithebad opened this issue 3 years ago • 8 comments

Hello !

Does the script work woth MAX30100 chip ?

I try it but nothing happen. No red light is on...

Regards

titithebad avatar Oct 21 '20 15:10 titithebad

Hi.

I think it does not work with MAX30100.

Searching on github showed this: https://github.com/mfitzp/max30100 How about trying this one?

I hope you successfully make your sensor work.

vrano714 avatar Oct 22 '20 15:10 vrano714

Hin

Thanks. Finally I bought a max30102.

The red light is now on but the value are false :+1:

pi@rpi-medical:~/max30102-tutorial-raspberrypi $ python test.py Channel: 1, address: 0x57 (-999, False, -999, False) (-999, False, -999, False) (-999, False, -999, False) (-999, False, -999, False) (-999, False, -999, False) (-999, False, -999, False) (150, True, 71.26890599999999, True) ==> only these values (-999, False, -999, False) (-999, False, -999, False) (20, True, -999, False) (-999, False, -999, False) (-999, False, -999, False) (-999, False, -999, False) (-999, False, -999, False)

Do you know why ?

Regards

titithebad avatar Oct 25 '20 10:10 titithebad

You successfully made the sensor turn on. That's good. 👍

There can be many reasons for that. Finger placement is most likely. Your finger should be steady on the sensor. Because the sensor has to read blood flow, put your finger softly for blood to flow normally.

Saving the raw sensor values and plotting them may help. HR/SpO2 calculation uses peak detection. If the plotting is too flat, peak detection cannot work.

In my opinion, max30102 sensor is susceptible to environmental factors such as finger placement, thickness of the skin and so on. 🤔 Please try several times to find the optimal way of placing finger.

vrano714 avatar Oct 26 '20 14:10 vrano714

Can you tell me the electrical connection you made with your Rpi please ?

titithebad avatar Oct 26 '20 18:10 titithebad

Here's the connection:

pizero-sensor-connection

Pin order of the sensor may be different with yours. Please refer to pin names.

(I think there is no problem in connection because you can see red light from the sensor and retrieve some values)

vrano714 avatar Oct 27 '20 06:10 vrano714

So, no problem with the connexion... How can I do to have more values for calculating the HR et Sp02 ?

titithebad avatar Oct 27 '20 22:10 titithebad

Another question, how do you put your finger on the sensor ?

titithebad avatar Oct 27 '20 22:10 titithebad

more values

How about referring to "Running Continuously" (in README.md)?

put your finger

I put my index finger, like when touching a fingerprint reader.

vrano714 avatar Nov 07 '20 02:11 vrano714