Camera Capture + Stepper Motor
I guess you are using opencv 4. In opencv 3 in cv2.findContours writting _, contours, hierarchy was correct because three arguments were returned. However, in opencv 4 only two arguments are returned so change your statement to contours, hierarchy
I am having a problem since im new at the opencv python language, any idea when the camera capture the stepper motor will rotate in 90 degrees.