We are implementing automatic wheelchair which has various advantages. It is operating in two
different modes i.e. accelerometer mode and IR sensor mode. Also there two types of sensors (Ultrasonic, IR
(Infrared sensor)) used for obstacle and steps, hole detection. This Wheelchair will be economical and can
affordable to common people.. This system can be made highly efficient and effective if stringent environmental
conditions are maintained. The running cost of this system is much lower as compare to other systems used for
the same purpose. Our work is to control Wheelchair by accelerometer where the wheelchair is programmed to
reacts according to the motion of accelerometer (forward, reverse, stop, left and right). The movement is
recognized by ADXL335 is used to control the motion of the Wheelchair. Also the accelerometer sensor is
calibrated such that it produces particular analog voltage for a corresponding tilt