Wi-Fi and GSM Based Motion Detection in Smart Home Security System

WiFi and Global System for Mobile Communication (GSM) based the smart home security system is a system that designed to improve security in most private housing. The main devices in this research are sensor for motion detection using Passive Infrared Sensor (PIR), Arduino Mega2560 as microcontroller board, NodeMCU V3 ESP8266 as WiFi development board that helps to prototype IoT product with few Lua script lines, or through Arduino IDE and then SIM800L as GSM module that also features GPRS support. The detection of motion is based on the principle of infrared radiation produced by human body heat which triggers a Passive Infrared Sensor (PIR). When the microcontroller received and processed the signal from human motion, then the trigger the buzzes the alarm, the microcontroller also activates the GSM module and sends SMS message to the user’s mobile phone device. This system enables to control the home by using android device, such as door, garage, and lamp in the rooms.