configured a little differently. I also have their low cost H-Bridge (that's
the actual name), but I went to a different chassis from Robotics Connection
because I was having trouble with the Rogue Robotics ATS throwing tracks on
carpet. The motos on the Robotics Connection chassis are much better, too,
but I'm having an odd problem with driving them.
To drive the wheels, I send a byte with a value from 1-127 for forward, and
128 and up for reverse. This would cause different speeds using the ATS
chassis, but I added an external power supply on the new chassis so that the
motors wouldn't be using the power from the OOPic board. When I send a value
below 100, nothing happens. In the range of about 100-120, the motors just
chirp. At a value of about 120-126, one wheel budges forward very
sluggishly, while the other barely moves. However, at 127, the wheels are
FLYING. So I go from nothing to almost nothing to full speed ahead. That's
not what I was hoping for.
I suspect the low cost H-bridge, which is about as simple a component as you
can get, is limiting things, but I'd like some input before I drop the cash
on a better H-bridge. Also, I'd take some recommendations if that IS the way
to go.
--
View this message in context: http://www.nabble.com/H-Bridge-issue...maybe.-tf4867316.html#a13928519
Sent from the OOPic mailing list archive at Nabble.com.
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