This is my first post, so I hope it is in the right section. I have a problem with measuring the intensity of a laser. Baically what I have is: 632.8 nm laser with 10mW; a SFH 203 P photodiode; and in the setup I use 10M resistor.
In the serial plotter I can observe that intensity changes when I shine some light on the photodiode. But I have no idea what the scale is. The data ranges from 0 to 1024. Could you tell me what the unit of this data is, or how to calculate the actual brightness.