Light fence circuit is used to detect the presence of any human or object in a particular area ... According to the circuit diagram, when LDR detects any activity the output of the Op-amp IC goes LOW, ...

An automatic bathroom light Circuit can be made in several ways, depending on your preference and budget. Some of the options make use of either a motion sensor, a smart switch, an occupancy sensor, ...

The circuit involves a PIR sensor as the motion detector, a relay to control the power to the bulb, and a transistor to drive the relay. The PIR motion sensor light wiring diagram is shown ... When ...

For example, a transparent red LED emits around 660nm light and responds better to orange light at 610nm. Circuit diagram ... LED1 sensor. In place of the white LED, a relay can be used to switch on ...

Project Description The project aims to automatically turn on or off the lights in a room by detecting the human movement. Since the job of the circuit is to turn on ... Hence, the project acts as an ...