The First Robot we ever made was for the Robo-Drift competition (Intra-College Robotics Competition) organized by Robotics Club of Kathmandu Engineering College.

Delta Mouse 

The body of the robot was made using the box of computer mouse where the name Delta was imprinted on the cover. That's how it got it's name "Delta Mouse".

We were a complete novice in the field of robotics until then when we started this project and we had to tackle many new challenges time and again. It was a very defining moment but the learning we gain from this whole experience is so crucial that it built a very good foundation for us which went on to become a strong passion in the later years. 

Delta Mouse

It was a 3 wheeled robot with 2 DC Geared motors on the back and a free wheel on the front.

Components:
1. Atmega16 microcontroller
2. 2 DC Geared motors (200 r.p.m.)
3. IR Sensor
4. Power Circuit

Then came the second Robot we made for the minor project in engineering as well as for Yantra 1.0 (National Robotics Competition). We named it D-Bot (that's actually a cool name for a robot, isn't it?).

First mechanical design of D-Bot

First model of D-Bot

As the name suggests, it a wirelessly controlled robot which transmits remote images over wireless network to a host. The host can be any android device which is connected to the robot over WiFi network.

This Project consists of two parts:
1. One Remote controlled Robot
2. One android device for controlling the robot

The robot is capable of going to remote places where human presence might not be possible or difficult. The robot consists of an on-board camera which sends live video signals to the controlling device. The movement of the robot can be controlled by the android device, as per the objective of the user, by watching the live signal.


Scopes;
The robot can be applied to the versatile range of applications ranging from home use to operations in hostile and inaccessible locations.

1. The robot can be used in a rescue mission
2. For remote mapping of hostile territory or geographical analysis
3. To safeguard national properties

Working of the robot: A Demo

To view the full documentation of the project click here

Line follower robot have been popular among hobbyist roboticists and also for beginners as simple starting projects. But the realm of line following can be taken to a whole lot bigger level by adding features that make it capable of doing more. Wall following along with line following and avoiding obstacles in the process, it makes line following more sensible and accurate. 

The reason for calling this a "Super Line Follower Robot" instead of just a line follower lies in the fact that beyond just following line, the robot can also follow wall and avoid obstacles. 

Block Diagram of Super Line Follower Robot

Robot is broken down into 5 subsystems: Locomotion, Powers, Sensors, Control and Display. 

1. Locomotion - 4 DC Geared motors are used for locomotion

2. Power - 12-18 V power is provided to the system

3. Sensors - IR sensors is used to track the line and sharp IR range finder is used to find                         the ranging for wall following and obstacle avoidance

4. Control - ATmega 16 micro controller is used as a brain of the robot

5. Display - LCD is used to show the current status of the robot. Also LED's are used to                         indicate powet modules and signals. 

Line Follower Demo:

Wall Follower  and Obstacle Avoidance Demo:

Mechanical Design:

The mechanical design of the robot was made using Sketchup software

First Mechanical Design

Second Mechanical Design

To view complete documentation of the project click here