Let's Make Robots!

Horus Lambda

Pushes other robots out of the dohjo

Competition video added, some other nice bots in it as well:)

This is my 3kg sumo robot for this years Robot SM(the swedish national championship in robotics).  

It's driven by four Lynxmotion GHM03 motors with Lynxmotion TSR04 tires on the axles.

It will be controlled by an Arduino Mega 2560, which I'm going to program with plain old C. I will not have time to write libraries for the HC-SR04s in C, Wiring it is! :)

It sees the world via four SR-04 Ultrasonic sensors; one in the front, one on each side and one in the back. It also has got four TCR5000-based linedetectors with controllable gain pullup-resistors.

The H-bridge is my own design and based on TIP147/TIP142s. It can handle about 10A per channel and about a 100V(yes seriously).

Got the name from this: http://www.seventhsanctum.com/generate.php?Genname=mechaname

The mechanics is mostly finished, the linesensors are finished and tested. Haven't found a way to mount the HC-SR04s cleverly yet


Linesensor closeup(lots and lots of hot glue there :D)

Update 2012-03-29

Mounted the magnets, the PSU(which I managed to short, need to replace the LM7805) and the ultrasound sensors, images below:

Sensors and stuff




The hardware is mostly done. I've added a video of it battling it out with a bottle of water. The code needs some adjustments for 100% speed as you can tell by the video :)

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Cool! Videos?

Not yet. Going to build on it a bit more before I make any videos.

It looks like it's pretty cool. I hope that when you are finished building on it some more that you will definitely do a video so that we can see it in action. Thank you for sharing.

If that thing ever escapes the ring, it will definitly go after everyone in the audience. It looks pretty much unstoppable. ;)

Very cool robot! Can't wait to see video's of its first victory matches.

Haha, yes it will. It has attacked my furniture and feet more than once :)

Thank you! I hope so too :)