Let's Make Robots!

Microrobot Robo-Lefter

Wall Follower Maze Solver

2/11/10   - oops typo on the first post, its 3 IR's per side!!!



This is my Microrobot Robo-Lefter kit robot.

Its a pretty good wall follower type

maze solver robot for the price.

It uses a Atmel 103 micro and x3x 

6 IR sensors, assorted indicators, with a ISP programming port.

Microrobot Robo-Lefter




















In fact I was so happy with it, I bought a second one.


















The old one I added a front bumper to, so that I can run it at full speed without fear of crash damage.

Comment viewing options

Select your preferred way to display the comments and click "Save settings" to activate your changes.
Hi, Damm nice mace robot. Just have a few questions, why does it have 3 IR diodes at each front corner? And does it only have 1 reciver at each front corner, or does it have 1 for each IR diode?

Its got one emitter/receiver pair per direction. So there's 2 going forward (1 per side) then 2 at 60 degrees (1 per side), then 2 at 90 degrees (1 per side). They are setup that way to maintain distance from the maze walls as it navigates. And actually the code is pretty simple by doing them this way. Because they are basically read as high/low whether there's a wall reflection or not.


In the small picture, you can kind of see the receiver sensors under the top mounted emitters.