Case Study: Wireless Control Of Robotic Car Through Matlb GUI

Wireless Control of Robotic Car through MATLAB GUI
Saikat Patra, Shibendu Mahata*
*Corresponding Author: [e-mail], Mobile: [phone]
Introduction
This project presents the implementation of a MATLAB Graphical User Interface (GUI) based approach to wirelessly control the movement of a robotic car. The command to move the car in forward, reverse, right, and left direction are sent from the GUI and is processed by an Arduino present on the transmitter side. After processing the command, a code is sent wirelessly to the receiver. The receiver side decodes the code and makes the robot move accordingly. The MATLAB based GUI for wireless control of the robot is shown in Fig. 1. The prototypes for the transmitter and the robotic car (present on the receiver side) are shown in Figs. 2 and 3 respectively.

Fig. 1. MATLAB GUI for controlling the wireless robot

Fig. 2. Authors’ prototype of the transmitter side

Fig. 3. Authors’ prototype of the
They are paired with HT12E encoders. The decoders receive serial addresses and data from a programmed 212 series of encoders that are transmitted by a carrier using an RF or an IR transmission medium. They compare the serial input data three times continuously with their local addresses. If no error or unmatched codes are found, the input data codes are decoded and then transferred to the output pins. The 212 decoders are capable of decoding information that consists of N bits of addresses and 12-N bits of data. For a valid transmission, the address bits of both encoder and decoder must be same.
434 MHz TX-RX modules: These 434MHz transmitter (TX) and receiver (RX) modules are electronic devices used to transmit and receive radio frequency signals between two devices. These modules are used widely in electronic design owing to the difficulty of designing radio circuitry. The carrier frequency of the module used here is