Project Description
Haptic Robotic Arm is designed to control the robotic arm by recognizing the hand gestures. The hand gestures are nothing but, hand movements. Gesture based control is more popular in the field of robotics, which interfaces human movement in accordance to the machine / device. Haptic technology is used for designing a robotic arm. This Haptic technology is defined “to make use of the feedback from the sense of touch that enabled to control devices remotely”.
Working
A developed haptic robotic arm is operated by detecting the motion of hand using the potentiometer. The designed robotic arm mimics the actions of the hand and it controls the robotic arm. When the hand moves it changes the potentiometer resistance value. The resistance value is converted into analog voltage and its measured by the microcontroller. microcontroller converts tha analog voltage into digital voltage (ADC). The controller then control the motion of motor according to the resistance of potentiometer.
The system can be made more accurate and responsive using the flex sensor on hand and encoders on the motor for the feedback. Servo motors are the better alternative to the DC geared motor used in the project.