quintindunn / StringArtRobot

A StringArt robot inspired from https://www.youtube.com/watch?v=WGccIFf6MF8
MIT License
1 stars 0 forks source link

Servo value must be between -1 and 1, or None #3

Closed quintindunn closed 1 month ago

quintindunn commented 1 month ago
Command: Exception in thread Thread-3 (execute_file):
Traceback (most recent call last):
  File "/usr/lib/python3.12/threading.py", line 1073, in _bootstrap_inner
    self.run()
  File "/usr/lib/python3.12/threading.py", line 1010, in run
    self._target(*self._args, **self._kwargs)
  File "/home/quintindunn/stringartrobot/robot/robot/string_bot.py", line 53, in execute_file
    instruction.execute()
  File "/home/quintindunn/stringartrobot/robot/robot/instructions.py", line 126, in execute
    rotate_arm_to(degrees=self.degrees)
  File "/home/quintindunn/stringartrobot/robot/robot/hardware_api/rotate_servo.py", line 33, in rotate_arm_to
    servo.value = degrees
    ^^^^^^^^^^^
  File "/home/quintindunn/.local/lib/python3.12/site-packages/gpiozero/devices.py", line 454, in __setattr__
    return super().__setattr__(name, value)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/quintindunn/.local/lib/python3.12/site-packages/gpiozero/devices.py", line 130, in __setattr__
    return super().__setattr__(name, value)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/quintindunn/.local/lib/python3.12/site-packages/gpiozero/output_devices.py", line 1622, in value
    raise OutputDeviceBadValue(
gpiozero.exc.OutputDeviceBadValue: Servo value must be between -1 and 1, or None

Working servo code, needs to adapt program to use this method:

def set_servo_angle(angle):
    # Clamp the angle between -90 and 90 degrees
    angle = max(-90, min(90, angle))
    # Convert angle (-90 to 90) to value (-1 to 1)
    value = angle / 90
    servo.value = value