For Power supply purposes, I decided to use a 12V DC Power Adaptor to power this whole setup through a barrel jack connector. In the below image, you can find our actual hardware setup of our ...

Fig. 1: Authors’ prototype of the transmitter Fig. 2: Authors’ prototype of the receiver Wireless Visitors Counter Transmitter Block Diagram Wireless Visitors Counter Receiver Block Diagram Wireless ...

Often we see visitor counters at stadium, mall, offices, class rooms etc. How they count the people and turn ON or OFF the light when nobody is inside? Today we are here with automatic room light ...

Arduino has inbuilt two low noise Op-amp. Control Section: Arduino UNO is used for controlling whole the process of this visitor counter project. The outputs of comparators are connected to digital ...