Visitor counter without microcontroller

This project is Visitor counter Without microcontroller. It can help to Power saving by switch OFF the room lamps when no body in the room.

You can download the Gerber file of this PCB from here:
 https://www.pcbway.com/project/shareproject/Visitor_counter_Without_microcontroller.html

Parts list:

IC 40110 (2pcs)

IC 4093

Optocoupler PC817 (2pcs)

7Segments common cathode (2pcs)

Diode 1N4007 (4pcs)

Laser 5v 5mW (2pcs)

LDR (2pcs)

LED

Relay 5V

Transistor S8550

Capacitor 100nF (2pcs)

Capacitor 10uF

Capacitor 220uF

Resistor 1M

Resistor 1.5K (2pcs)

Resistor 100K

Resistor 6.8K

Resistor 4,7K (2pcs)

Resistor 200R (15pcs)

Circuit:

Video:

categories : 7-Segment Circuits,AC 110v-220v Projects,circuits,Laser Circuits,PCBWay,Power consumption optimization,Visitor Counter