Scott Murchison

Got it working. I wrote one routine for CW and another for CCW. Thanks.

I’ll try it and report back. Thanks.

The Packetized Serial Mode, although more complex, looks enticing to use. Correct me if I am wrong, but it is already scaled to -127 (full speed reverse) to 127 (full speed forward) and each wheel can be controlled individually. Let me see if I have this right.

#include <Sabertooth.h>

#define RF 1
#define LF 2
#define RR 1
#define LR…[Read more]

Thank you for the explanation. It does make sense and it does help. In my case, I plan to use an OpenMV camera to locate a target position on the floor beneath the robot. Their software finds the target, say an Apriltag, and tells me where the center of it is in the FOV, along with its rotation angle. By simple math, I can determine what angle I…[Read more]

Thanks. I’ve done many Arduino projects, many with stepper motors, but this is the first with mecanum wheels. I have to get my head wrapped around the concept. Given that the wheel speeds aren’t all the same, I still have to tweak the numbers for some of them.

Also, since I’m not using RC, I’m finding it hard to understand how or if I need to…[Read more]

I’m wishing now that I had purchased the encoder version of the motors. Had I known about this problem, I would have. In any event, your explanation makes sense and I will work on a formula to compensate for the differences between the wheel pairs. The original reason that I did not go with encoders is because I plan to use a camera on the robot…[Read more]