MULTIPURPOSE ROBOT Nishant Kumar Singh AJIT SINGH YADAV CAPSTONE PROJECT REPORT GROUP MEMBERS: DHARMENDRA KUMAR(11013206) AJIT SINGH YADAV(11010842) NISHANT KUMAR SINGH(11009788) Nishant Kumar Singh AJIT SINGH YADAV DHARMENDRA KUMAR

Contents Introduction RF Communication Sensor interfacing Motor interfacing Project timeline Conclusion Future applications

INTRODUCTION OF ROBORT To get sensor data wirelessly from Robot To control the Robot movement To control the Robot speed To interface Ultrasonic sensor for auto mode To display sensor data on Remote LCD To differentiate the channels for data and control transmission

SERIAL DATA SERIAL DATA Parallel output Parallel Input RF DATA COMMUNICATION

ULTRASONIC SENSOR

WORKING OF ULTRASONIC

TEMPERATURE SENSOR (LM35)

GAS SENSOR (MQ-2)

IR SENSOR Used in this project to calculate wheel speed (as a tachometer) IR Sensors work by using a specific light sensor to detect a light wavelength in the Infra-Red (IR) spectrum. By using a LED which produces light at the same wavelength as what the sensor is looking for we can look at the intensity of the received light.

ROBOT BLOCK DIAGRAM LM35 SENSOR DATA TRANSMITTER GAS SENSOR RF TX ATmega16A RF TX HT12E GAS SENSOR ULTRASONIC SENSOR L293D RF RX HT12D M1 M2 CONTROL CHANNEL RECEIVER ROBOT BLOCK DIAGRAM

LCD REMOTE BLOCK DIAGRAM CONTROL CHANNEL TRANSMITTER ATmega16A RF TX HT12E 1 2 3 4 5 6 7 8 9 A B C D E F RF RX HT12D SENSOR DATA RECEIVER KEYBOARD REMOTE BLOCK DIAGRAM

PROJECT TIMELINE

CONCLUSION From this project it is concluded that a half-duplex transmission of information is possible on same frequency by switching. Robot is capable of automatic movement and sends information about its environment through the interfaced sensors. Robot can be command to perform movement through interfaced keyboard.