Rover skid steer
Posted: Thu Apr 08, 2021 8:03 pm
hi,
im building a rover for inspections at my workplace.
It is build on a wild thumper 4wd platform and uses a Roboclaw 2x15A.
I've added a Raspberry Pi 4 (with cam2) with OpenHd to get a FPV operated rover, Groundstation (RPi4) uses a XBox controller and sends RC signals over OPenHd. The Rpi in the rover decodes the iBus signals and sends them to a Arduino Uno which translates it to RC signals the Roboclaw can understand.
Roboclaw is stup in RC-mode.
Now the following problem, because i have no encoders i can't seem to get the rover drive straight....
Because the DC motors have a preferred rotation direction. Left drives CW and right drives CCW when driving forward, this causes one set of motors to drive faster...
Is it possible i can solve this problem without the use of encoders???
It would be great if i can set a offset (trimming function) in the windows software to get it running straight.
Hope someone can help me with this issue.
kind regards,
Bert.
Tata Steel Europe.
im building a rover for inspections at my workplace.
It is build on a wild thumper 4wd platform and uses a Roboclaw 2x15A.
I've added a Raspberry Pi 4 (with cam2) with OpenHd to get a FPV operated rover, Groundstation (RPi4) uses a XBox controller and sends RC signals over OPenHd. The Rpi in the rover decodes the iBus signals and sends them to a Arduino Uno which translates it to RC signals the Roboclaw can understand.
Roboclaw is stup in RC-mode.
Now the following problem, because i have no encoders i can't seem to get the rover drive straight....
Because the DC motors have a preferred rotation direction. Left drives CW and right drives CCW when driving forward, this causes one set of motors to drive faster...
Is it possible i can solve this problem without the use of encoders???
It would be great if i can set a offset (trimming function) in the windows software to get it running straight.
Hope someone can help me with this issue.
kind regards,
Bert.
Tata Steel Europe.