Note: Please scroll down to see all details of this project below ↓
Transistors sumo bot
Objective of This Project
The main objective of this project is to build a sumo bot that knocks out an opponent while staying in the ring. This project allows me to show my full understanding of different types of transistors and how different electrical components work within the robot for my Electronics Lab class. There are two parts to this project, the first part is to test whether our robot is tracking the box or not (as shown in the video). Whereby, we will be attaching a beacon to our opponent robot for the second part, so our robot can essentially track it and try to knock the opponent out of the ring just like knocking out the box in the first part.
Designing my sumo bot logic on ni multisim
I started with designing all the logic and what electrical components we need to use for the logic of the robot on NI Multisim. However, for this project, it is quite challenging for me due to how we cannot use any microcontroller as part of the robot to control any of the motor movements. This robot used a generous amount of MOSFETS, four 555 timers, one Op-Amp, two TSOPs, two motors, resistors, capacitors, transistors, diodes, CDS cell, LEDs (colored LED and IR LED), and a 5V relay.
Preparing my sumo bot for the final competition
After accomplishing the first part of the robot project (as shown in the video below), I then moved on to the second part, which is modifying the robot to knock out other opponents instead of just knocking out boxes. I adjusted the capacitors and resistors value on the 555 timers, which will change the backup and rotation time of the robot when approaching the white line of the ring.
Transistors Sumo bot
Final Demo
This is the final demo of my robot project. The robot will run when it detects light, and it will then start tracking the box and knocking it out of the ring. A beacon is attached to the box, so the receiving circuit on the robot can track and follow it. In addition, I also have an IR LED and phototransistor circuit attached on the robot to track the white line on the ring, so it knows when to back off.
