Design and implementation of a shadow bot for mimicking the basic motion of a human leg

Abstract

Herein, a new way of designing a bi-pedal robot is explored. It uses Arduino Uno microcontroller to control the movement of the robot. The robot has the ability to mimic the locomotory motion of the human leg and consequently it is named as "shadow bot". The circuit consist of a transmitter section and a receiver section; the TX part couples IR sensor and Accelerometer motion sensor together and is fixed onto a human leg, while the RX part consist of servo motors and microcontroller unit and 434 MHz ASK receiver that forms a part of the Robot circuitry. The Arduino ATmega 2560 based microcontroller is used in both the receiver and transmitter. Motion of the robot is controlled by sending PWM signal pulses to the corresponding servo motors; a total of 6 servo motors have been utilized as a remedy for solving the mechanical aspects of the shadow bot. The capability of the present robot can be extended by adding features that may be able to perform realtime such as agriculture, military operations; mechanical hands for performing heavy task, advanced signal processing can be done by fitting a camera on top of it.