pymata_aio_pymata3_example

pymata_aio_pymata3_example

#!/usr/bin/env python3

from pymata_aio.pymata3 import PyMata3
from pymata_aio.constants import Constants


def pin_6_pwm_128():
    """
    Set digital pin 6 as a PWM output and set its output value to 128
    @return: No Value Returned.
    """
    # instantiate the pymata_core API
    board = PyMata3()

    # set the pin mode
    board.set_pin_mode(6, Constants.PWM)
    board.analog_write(6, 128)

    # wait for 3 seconds to see the LED lit
    board.sleep(3)

    # reset the board and exit
    board.shutdown()


if __name__ == "__main__":
    pin_6_pwm_128()

Where do you set the com port the arduino is located on?

board = PyMata3(com_port='/dev/ttyACM0')

See details.

If you don't specify the port (leaving the default as com_port-None), then it will be automatically detected