Affordable Smart Wheelchair Using Relay Module and Bluetooth Communication

This project presents a Bluetooth-controlled wheelchair system designed for enhanced mobility and auxiliary functionality. The system replaces traditional motor drivers with a 4-channel active-high relay module to control dual DC motors for forward, backward, and turning motions. Additionally, it includes a relay-controlled conveyor mechanism for supporting small load-carrying tasks, making it particularly useful for individuals with physical limitations.

The wheelchair is operated remotely using an HC-05 Bluetooth module, communicating commands from a smartphone or external controller to an Arduino microcontroller. This approach offers a cost-effective, wire-free, and easily modifiable solution for smart mobility applications.