I have 2 different pulse sensors, one has "pulsesensor.com" written on it (but I doubt it actually is from there as I ordered it from china for 2€) the other one is from a more trustworthy source
Problem though: Both don't really work. If I directly plot the analog readings, they look like this. I have to remove the sensor and adjust the position about 10 times to get it working and have it finally look the way it should, and even then the slightest movement fricks up the reading so much that any actual pulse reading code will have the bpm value jumping around like crazy.
That can't really be normal, right? I've seen so many videos with identical looking sensors where it seems like they are working without a problem. Am I doing something wrong? I even tried putting the sensor on different fingers, ellbow, neck, below the wrist, no luck anywhere.