I am encountering the same issues as the individual from this post, but there was no solution in the comments.
I’m running into an issue with the front steering on my PiCar-X (using a Raspberry Pi 5). I’m currently working with the 2.move.py example from the picar-x/example folder.
Issue:
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When I initialize the car in Python with
px = Picarx(), the front wheels immediately turn sharply to the right, even before any commands are issued. -
When I try to use
px.set_dir_servo_angle(0)in Python, the wheels still point far to the right. -
When I attempt to zero the steering using the physical zero button, the wheels again immediately turn to the right.
-
For comparison, I successfully zeroed the camera tilt and pan servos using the same method.
Additional Details:
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The car does not move forward when executing
px.forward()commands because the wheels are offset. -
Using negative angles (e.g.,
-35) only moves the wheels slightly left; the range seems misaligned. -
The problem seems specific to the steering servo; the tilt/pan servos work as expected.
-
I suspect a combination of servo assembly offset and the broken zero button is causing the software to misinterpret the true center of the steering servo.
If necessary, I can provide a video of a live demonstration of where the issue is occurring.
I purchased this kit around 3 weeks ago. It is the Robot Hat V4 Version.
