Hi,
I've tried a cheap GY-MAX30100 from eBay, using oxullo interscan library. Unfortunately results in terms of data precision are not satisfying me.
Can you please suggest me a reliable pulse oximeter board for Arduino?
I don't need a medical device, but if my SpO2 is 96-97 normally, if it displays 94-95, there's something wrong...
Probably the one I bought was a low quality for China...
Alternatively is there any way to connect one of those smart watches to Arduino? I think they have a sensor which is already well tested....