STRUCTURAL DESIGN, FABRICATION AND PERFORMANCE EVALUATION OF AN ELECTRIC POWERED WHEELCHAIR

In this paper, an ESP32 microcontroller is used to develop and build a joystick-controlled electric wheelchair. Through simple joystick-based control, the technology is intended to give elderly or physically impaired people autonomous movement. Two geared DC motors coupled by a sprocket and chain transmission system power the wheelchair, which is constructed with a square tube frame. Each drive motor's speed and direction are managed by two BTS7960 high-current motor driver modules. The main input device is a joystick module, and control commands are also remotely sent via Wi-Fi using the Blynk program. The system is powered by a 12V 40A battery. To move the wheelchair forward, backward, left, and right, the ESP32 uses relay-controlled circuitry to detect joystick inputs and deliver the proper PWM signals to the BTS7960 motor drivers. The suggested system offers a cost-effective, dependable, and remotely contr olled mobility solution appropriate for both home and rehabilitation facilities..