Intelligent Control Wheelchair Using a New Visual Joystick

Table 2

Operation volts of the intelligent wheelchair.

	Output1	Output2
Stop	2.5 V	2.5 V
Forward movement	2.5 V	2.5 V~3.9 V
Back movement	2.5 V	1.1 V~2.5 V
Right turn	2.5 V~3.9 V	2.5 V
Left turn	1.1 V~2.5 V	2.5 V