Flex Controlled Robotic Arm

Abstract

In today’s world, robotics play a major role. The aim of our design is to fabricate a robotic
arm which mimics the actions that the human arm performs. Out of India’s total population
1.8% are arm amputees. Since the bionic arms and its maintenance is really costly, it leads to
the popularity of 3-D printed arms. Our design consist of hardware and software part for
robotic arm that is to be positioned, at the armless part of the amputee. We use different
position for fingers to control the robotic hand using the movement of flex sensor. Depending
on the bending of the fingers, the resistance value associated with the flex sensor varies
which in turn controls the rotation of the servo motor’s shaft. The motor controls the robotic
arm as per the resistance values obtained from the flex sensor. The system is operated
wirelessly (transceiver), which eliminates the danger of wires running around the body.