Let's Make Robots!

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i have the same rover5 with you.i make 2 pairs of motor (left side & right side).now all motor pull about 0.8A but they sacrifice speed (speed in video is maximum speed). L293 getting a little bit hot but its not too much

Bajdi's picture

Don't you have any problems with the L293's? I have a Rover 5 with 4 motors, each motor pulls about 1.5A at full PWM (powered from a 2S lipo). That well over the limit of an L293.

i had set a "minimun distance" of 15cm. when robot find an object closer than this distance it will stop and make one scan to left and one to right.comparing this 2 reading it will turn 90 degrees (need to fix encoder readings...) on the side with the bigger reading. it will do it well some times but a lot of them it is confused and looks like idiot :D. i had order a 9DOF sensor and i hope i solve all this problems...

ty for your suggestion

Dan M's picture

Pretty cool. It almost looked to me like the program could be altered a little, to allow the robot a closer approach to objects. That would cut down on the time sitting in the center and spinning around looking for a direction to go.  It can still be set to a distance where it will not run into anything, just cut down the "safe distance" a little.

Just a suggestion.