Smart home system is very popular in modern days that give many kind of application that make everything is simple and easy to control. In modern day, home appliances are using wireless technology and can be accessed by internet that will make residents life easier and organized. IoT-based Home Automation System is designed to assist the people with physical disabilities and elderly to provide support as well as to control the electrical appliances and monitor the room temperature using mobile application. The design is using embedded controller board and the home appliances are physically connected to output ports of this board via relays. The Home Automation is a wireless home automation system that is supposed to be implemented in existing home environments, without any changes in the infrastructure. Home Automation let the user to control the home from his or her computer and assign actions that should happen depending on time or other sensor readings such as light, temperature or sound from any device in the Home Automation network. In the advancement of technologies controlling and monitoring electrical appliances using laptop, computer with the help of internet connection is possible. The main objective of internet of things is used to help specially challenged people and old age people to control electrical appliances and security purpose. IoT is very useful for these people in crucial situations. There are two ways to access these process WIFI connectivity (or) it is connected to a router. This process is done in low cost & controlling many devices in a simple circuit.