This is the light fence schematic diagram uses LDR as the light sensing. The fundamental issue with the greater part of standard light sensors is […]


This is the basic dark and light sensor which using photoresistor as sensing component. The transistor act like as a switch, when the “switch” in […]

This is the color detector / sensor circuit diagram. This circuit will sense eight colors that are: green, red and blue (as primary colours); magenta, […]