Let's Make Robots!

Number One

Navigate around via IR.

Hi All,

I just completed my first robot project.  It's based on a dsPIC33FJ32MC202 DSP.  I used the Tamiya track kit and dual motor gearbox for the vehicle base.  A L298 bridge controller was used to control the motors and a Sharp GP2D12 mounted on a RC servo was used for ranging and navigation.

The Chassis:


The Motor Controller Board:


The dsPIC33FJ32MC202 DSP board:


Boards Mounted on Chassis:


Completed Robot:



I'll post video as soon as I make one.


Comment viewing options

Select your preferred way to display the comments and click "Save settings" to activate your changes.
I'm beginner and i want to built a robot as your. And I don't know how to built motor controller. If you have books for beginners could you send me please...
Check the Start Here robot you don't need to build a motor driver you can buy a premade chip that will handle up to 1amp.


 nice robot.

how did you make your robot turn. Arent Tamiya track set orange wheels on two sides connected to each other by a long shaft....if wheel on one side turns...it will make the other one on the opposite side turn too.

I am in the process of making my first robot. I have Tamiya Twin Motor Gearbox and Tamina Track set. If I am right.....to turn the robot i will have to just turn only one motor and shut down the other. If this is the mechanism....then how would tamiya track set be used. 

The shafts are NOT connected and they CAN turn in opposite directions at once.


thanks for your quick response.  

i still dont get it.

if you look at the photo below, I drew a box to show the long shaft. Even if one wheel is turned by one motor.....this long shaft will make the other side rotate too. wouldnt it? 

 wouldnt only one wheel turn when only one motor starts. then it would make the wheel of the far right turn too (because of the track)....and then the long shaft would turn....and that shaft would make the wheel on the other side turn too.


Oh the OTHER side?! I thought you were talking about the gearbox...

Simple, the wheels aren`t stuck to the axle.

Do you have this set actually in your hands now?

ok. i get it now. 


The wheels are free rotating.  I control the motors on the gearbox for motion.

I'm really crazy to make robot. I wanna know your robot circuit diagram , inside what r u using also.

if u don't mind, i wanna make one like yours. Can u email me detail ur all circuit diagram how i make it. 

Tks my email is taurus.dj@gmail.com


Starting a blog showing the design of this robot.  I've added 2 more IR sensors for wall tracking and improved navigation and adjusted the gearbox so it is now quiet(those tamiya gearboxes are really noisy!)