Traceback (most recent call last):
File "/home/pi/project1/SG90/angleServoCtrl", line 16, in <module>
import Adafruit_PCA9685
File "/usr/lib/python3/dist-packages/thonny/backend.py", line 305, in _custom_import
module = self._original_import(*args, **kw)
ModuleNotFoundError: No module named 'Adafruit_PCA9685'
错误提示如上↑