Robotics

This version introduces significant structural changes. The chassis has been redesigned to be more lightweight, with 80% of the weight concentrated over the wheels. Additionally, two coreless motors are mounted above the wheels to provide extra downward thrust, improving stability and traction.

The major updates from version 2 include changes to the primary controller, motor driver, and menu system. The Raspberry Pi Pico has replaced the Arduino Nano. Additionally, the motor driver has been fully customized, and the menu system with an OLED display and pushbuttons has been integrated for improved functionality.

In this version, the robot features a curved IR array and a camera as additional sensing elements. The camera helps the robot anticipate sharp turns by detecting the incoming line type, allowing it to slow down in advance.

The primary circuit in this version is nearly identical to the previous one, with the main difference being the inclusion of a curved sensor. Additionally, an advanced sensing system was developed using a camera, a Raspberry Pi Pico, and a TFT display.

This model is designed to be lightweight, with a primary focus on achieving high speed. Most of the weight is concentrated above the motors and wheels to enhance traction and optimize performance.

Features

This version of our robot uses an IR array having 14 IR sensors and a multiplexer. 

Performance

This model was specifically designed for multipurpose operations including obstacle avoidance and wall following in addition to the main purpose: line-maze solving.  A unique feature of this design is its ability to climb slopes up to 45 degrees while following a line. 

The schematic was designed to allow versatile customization of various parameters and logic. This flexibility is achieved through a menu system controlled by push buttons and displayed on an I2C OLED display, eliminating the need to reprogram the robot using a laptop when logical or parameter changes are required.

• Effectively solves any kind of line maze.

• Avoids collision with any obstacles present on the line.

• It can follow walls where a line is not present.

• Able to climb on a slope of maximum 45 degrees.