Introduction: My Mini Sumobot (500g Prototype)
Here's my mini sumobot, running for the national sumobot competition (Philippines). After the competition (January 12 & 26) I'l probably release a full step by step tutorial, provided with some old codes. This guide will help you understand and provide you ideas on how a typical sumobot works.
What's A Sumobot?
It's somehow related to real life sumo wrestling. Two sumobots are placed in a ring, the goal is two push each other out of the ring, any part of the robot that touches outside the wring will be considered defeated. The one who pushed the other opponent out of the ring will be the winner of the round, there will be three rounds in each battle. It's a championship that will test your skills in programming and in building your hardware. There are three divisions in our country the 400g, 500g and the 1kg. It's Fully Autonomous (has no remote controls, run 100% with programs)
I'm actually using an "Arduino UNO" clone, the ACEduino, as my micro controller. The current motors installed are two mabuchi (Torque-Dash Motor) installed in a "Tamiya Twin Gearbox" (203:1). Motors are driven the by my DIY Motor Shield (<- Instructable Guide) using a L298N motor driver chip.
The bot contains 9 sensors in total. There are 3 floor sensors, 2 side sensors, 3 front sensors and 1 rear sensor. It's powered by a 7.5v 950mAh rechargeable LiPo battery and has a battery life of 1 hour (continuous battle). The body is all acrylic, I cut it using a rotary tool. It weighs 450g and has a pushing force of 1.9kg. It's not that fast but it surely has a lot of pushing power "torquey".
National Robotics Competition (Elimination):
This time the sensors are fully functional: Floor, Front, Side, Rear.......
Here's a video of my two prototype sumobots fighting in battle:
The only working sensors in the demonstration are: 2 Floor Sensors, 1 Rear, 1 Front.
We are still on the programming stage, the bot only operates with some primitive functions,
soon we will input strategical tactics.
What's A Sumobot?
It's somehow related to real life sumo wrestling. Two sumobots are placed in a ring, the goal is two push each other out of the ring, any part of the robot that touches outside the wring will be considered defeated. The one who pushed the other opponent out of the ring will be the winner of the round, there will be three rounds in each battle. It's a championship that will test your skills in programming and in building your hardware. There are three divisions in our country the 400g, 500g and the 1kg. It's Fully Autonomous (has no remote controls, run 100% with programs)
I'm actually using an "Arduino UNO" clone, the ACEduino, as my micro controller. The current motors installed are two mabuchi (Torque-Dash Motor) installed in a "Tamiya Twin Gearbox" (203:1). Motors are driven the by my DIY Motor Shield (<- Instructable Guide) using a L298N motor driver chip.
The bot contains 9 sensors in total. There are 3 floor sensors, 2 side sensors, 3 front sensors and 1 rear sensor. It's powered by a 7.5v 950mAh rechargeable LiPo battery and has a battery life of 1 hour (continuous battle). The body is all acrylic, I cut it using a rotary tool. It weighs 450g and has a pushing force of 1.9kg. It's not that fast but it surely has a lot of pushing power "torquey".
National Robotics Competition (Elimination):
This time the sensors are fully functional: Floor, Front, Side, Rear.......
Here's a video of my two prototype sumobots fighting in battle:
The only working sensors in the demonstration are: 2 Floor Sensors, 1 Rear, 1 Front.
We are still on the programming stage, the bot only operates with some primitive functions,
soon we will input strategical tactics.

Participated in the
Instructables Design Competition
27 Comments
Question 4 years ago
Ask ko lang po kung pede mahingi yung layout nung sumobot nyo for project lang po sana namin. Thankyou
4 years ago
Hi can I have a copy of your code? Thank you for your response.(just needed for project)
5 years ago
what sensor that you use?
Reply 4 years ago
Ooo
Reply 5 years ago
He used an ultrasonic sensor in the front and 1 IR sensor at the back and 2 IR sensor both at right and left
Question 5 years ago
Can I have a copy of your sketch? I will use it as a reference for my school project. Thankyou so much!!!!
Question 5 years ago
Hi, may I ask were did you get those gearheads attached with plasma dash motors? Can they be found here inside Philippines? If yes, where? Thanks a lot:)
9 years ago on Introduction
i just wanna ask if the robot that has a plasma motor can push a 1kg robot out of the ring?
Reply 9 years ago on Introduction
Yes it can although you'll need a high current motor driver.
Reply 6 years ago
What motor driver, specifically? Will adafruit l239d motor driver shield do?
6 years ago
Hi can i Ask where did you buy sumo bot wheels here in the philippines? wheela for tamiya twin gearbox
6 years ago
hi can i ask for a copy of your program?
6 years ago
Hi. Very good design. What sensors did you use?
8 years ago
can i see your sumobot full step by step tutorial and the codes please
thank you :)
8 years ago on Introduction
I forgive you could spend the code lines and planes to get an idea if it's not too much trouble you, (please mail)
8 years ago
Can I see the the image of your mabuchi (torque-dash)motor?
8 years ago on Introduction
I'm making a sumo robot too and I'm stucking with the line tracking sensor to avoid go past the ring. Can you help me with this :D i'm very appreciate it.
9 years ago on Introduction
i just wanna ask if the robot that has a plasma motor can push a 1kg robot out of the ring?
9 years ago on Introduction
i just wanna ask if the robot that has a plasma motor can push a 1kg robot out of the ring?
9 years ago on Introduction
can I have a schematic of your motor control please and thank you :)