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Mr. Basic + AVR

Robot – work in progress
 
jip's picture
By jip
@ May 19, 2009
Burn its motor driver IC
Cost to build: 
$35

Say hello to my Mr. Basic. He's currently not into anything exciting - other than burning his L293 chip (Mr. Basic likes burn-outs). He will someday get a descent motor driver that can handle his motors properly and then he will be able to follow a line.

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By fritsl
@ Tue, 2009-05-19 21:24
fritsl's picture

Wow. First Mr Basic entry that I see!! Cooool!

BUT WAIT! What's that plate? 

By jip
@ Wed, 2009-05-20 08:29
jip's picture
Plate? You mean the perf. board? I just wanted easy access to switch the batteries from the 3AA pack and I didn't really want to use the nice double sided perf board that came with Mr. Basic so soon :-).
By shaked87
@ Tue, 2009-05-19 18:58
shaked87's picture
From you experience,  the L293 handles these motors properly?
By jip
@ Wed, 2009-05-20 08:27
jip's picture
Not from my current experience, no. L293 is only able to handle 1A continuously and 2A peak and the motor stall current is higher than both those numbers.
By shaked87
@ Wed, 2009-05-20 08:37
shaked87's picture

Seems like I'm gonna try it with a 298N motor driver..

Have you measured the current that the motors consumes or you just know it higher than 1-2 A?

By jip
@ Wed, 2009-05-20 09:24
jip's picture
Rik did some measuring here and I also looked up the datasheet for the RE-260 motor and checked the specs. Sounds like a good idea with the L298 driver.