Abstract: The needs of many individuals with disabilities can be satisfied with traditional, manual or powered wheelchairs. A segment of the disabled community finds it difficult or impossible to use wheelchairs. There is extensive research on computer controlled chairs where sensors and intelligent control algorithms have been used to minimize the level of human intervention. Here I describe design of a smart, motorized, voice controlled wheelchair for physically disabled people by using embedded system. Proposed design supports voice activation system for physically disabled persons incorporating manual operation. Arduino microcontroller and speaker dependent voice recognition processor have been used to support the navigation of the wheel chair. The wheelchair does not respond to a false speech command. Depending on the direction selected on the joystick, microcontroller controls the wheelchair directions. This can be controlled through the voice commands also. By using ultrasonic sensors we can avoid obstacles

Keywords: Controlled chairs where sensors and intelligent control, wheelchair, joystick, microcontroller controls