Wall-E

Srishti 2019

Abstract

Our main idea was to create a bot which can pick garbage directly from dustbin.

Motivation

In this present era, people live a very busy life. In such a situation, a person will always look for the way to save time.So introducing the robot, WALL-E that can collect waste directly from dustbins and then dispose the waste to the area which is already predefined.

Mechanical Aspect of the Design

1. Our bot has differential chasis with three wheels.
2. One is castor wheel and the other two wheels are connected with two motors which provide movement to the bot.
3. With the help of these wheels, the bot can move in all directions.
4. The hands were operated using three dc motors.
5. The "up-down" motion of hands were provided using worm and spur gear mechanism.
6. The hands were able to converge or diverge with the help of pulley and belt mechanism.
7. The body was made using channels and plywood whereas the head was 3D printed.

Electronics Aspect of the Design

1. Electronic Components Used
   1.Arduino Uno
   2.Arduino Nano
   3.L298n motor drivers
   4.cytron motor driver
   5.DC motors
   6.Servo motor
   7.Bluetooth module HC-05
   8.LED Matrix MAX7219
   9. Android device
   10.IC 7805 and IC 7809
   11.Connecting wires and jumpers

2. Arduino Uno was used for movements of wheels and hands.

3. Arduino Nano was used for operating the head including LED Matrix used as the eyes of our bot, WallE.

4. Wall-E is controlled through an Android device using an app made on MITAppInventor2.

5. A bluetooth module was used for transmission of commands from android device to our bot.

6. All the dc motors were powered through Li-Po 11.1V dc battery.

Cost Structure

COMPONENTS	COST(₹)
Android Device	10000
Arduino Uno	500
Arduino Nano	300
L298n motor driver(2)	320
Cytron motor driver	2000
Bluetooth module	350
Voltmeter	160
Servo motor(s3003)	400
DC motors(5)	3000
Li-Po battery(2)	2200
Led Matrix MAX7219(2)	300
Other Components	2000
Total	21530

Applications

Wall-E can collect garbage directly from dustbins which can be disposed off later. It can be extremely useful for collecting toxic or harmful wastes and thus can be used in hospitals, industries etc.

Limitations

Currently, our bot is manually operated and thus require human help to be operated.

Future Improvements

Many furthur improvements can be done in this robot. Using IOT, this bot can be controlled from anywhere and can be live-streamed using webcam. It can be made autonomous using ML so that it can detect dustbins and collect garbage.Hence, it will no longer require commands to move, pick or dump.

Team Members

1.Ayush Jalan
2.Birendar Yadav
3.Divesh Kumar
4.Ritik Raj
5.Sahil Sudan
6.Shubham Goyal

Mentors

1.Navin Chandra
2.Vandan Gajjar
3.Yawan Gupta