Abstract
This project will help physically challenged persons and patients to operate their wheel chair without need of second person. Depends upon the user operating requirement we can use suitable technology to operate the wheel chair like MEMS, touch screen, voice recognition, etc. The project aims at designing a wheel chair for physically disabled people using touch screen. The system contains control systems, manipulators, power supplies and software all working together to perform a task.
This physically challenging wheel chair is a machine that allows the physically disabled person to change the direction of the vehicle according to his requirement without any other person’s need. The direction of the vehicle can be changed with the inputs given by the user from the touch screen. The microcontroller continuously monitors its input pins and if it receives any input, it performs the task according to the user requirement.
The user feels very comfortable with the touch screen. There is no need to press any kind of switches just a touch can change the vehicle direction. DC motors will be fixed to the bottom of the wheel chair for the vehicle movement. L293D is used as the motor driver interface between the microcontroller and the motors.
SOFTWARE AND HARDWARE TOOLS:
Software Tools:
- Keil compiler
- Orcad.
- Proload
Hardware Tools:
- Microcontroller AT89S52.
- Touch screen
- MAX232
- DC motors
- L293D current driver
Block diagram