No Connectivity zone wireless communication and Human Detection using RF Module and PIR sensor

This paper presents a wireless communication system utilizing a 433MHz RF module alongside human presence detection using a Passive Infrared (PIR) sensor. The system is designed to enable real-time monitoring of human presence in a specific area. At the transmitter end, four push buttons are integrated and linked to an encoder, allowing the user to transmit specific signals wirelessly. When a button is pressed, the encoder encodes the corresponding data, which is then transmitted via the RF module to the receiver end. On the receiver side, four LEDs are connected, with each LED corresponding to one of the push buttons. When a button is pressed at the transmitter, the encoded data is received, decoded, and used to control the respective LED, providing a visual indication of the activated button. This system offers a versatile and reliable means of wireless communication with human presence detection, making it useful for applications like home automation and security systems where no connectivity is possible. Also in farm controlling equipment, educational institutions, commercial buildings, healthcare systems, emergency wards/departments.