USES:A variety of light detection, 2 road detection, can two-way control at the same timeThe module features:1, using photosensitive resistance sensor2, the comparator output, signal clean, good waveform, driving ability is strong, for more than 15 ma.3, with a potentiometer sensitivity adjustment4, the working voltage of 3.3 V to 5 V5, the output form: digital switch output (0 and 1)6, has a ...