I'm asking if theese kind of common sensors based on TCRT5000 have an output that is digital or analog:
If not, can you post some tiny IR sensor wic i've to use for measuring IR reflectance of surfaces.
I'm asking if theese kind of common sensors based on TCRT5000 have an output that is digital or analog:
If not, can you post some tiny IR sensor wic i've to use for measuring IR reflectance of surfaces.
The top one is analog, (has a sensitivity pot), the lower is digital (has an inverting schmidt trigger) for digital (flip / flop) output.
Do you want to get the relative reflectivity of different surfaces? Then the digital one for sure doesn't work (it only tells you whether there's a surface) and the analog one may or may not work.
The hardest part for such a measurement is to line up the two sensors and the surface you try to measure perfectly.