1. The problem statement, all variables and given/known data I want to know how to measure the frequency of a stroboscope by using an LDR and picoscope, but i'm not sure what circuit I should make up with the LDR in order for picoscope to show the frequency. 2. Relevant equations 3. The attempt at a solution I thought connecting the LDR straight to the picoscope would do, but my teacher said it wouldn't work.