i recently bought me an pulse-heartbeat sensor. Connected him to my brand new M1 mini as well.
I wrote a piece of Code which just outputs the Raw ADC Value from A0 (where the pulse sensor is connected).
Now I'm confused.. When i open Serial Plotter, i get this:
Which is confusing because i don't get useable Values when putting the sensor up side down, which is the promoted way to do this (i guess!!)
But it still doesnt look like some of those perfect diagrams on the internet.
Any can help me understand why i get this type of behaviour?
thanks, nice friday , luca