1  # SPDX-FileCopyrightText: 2018 Kattni Rembor for Adafruit Industries
 2  #
 3  # SPDX-License-Identifier: MIT
 4  
 5  # CircuitPython IO demo - analog output
 6  
 7  import board
 8  from analogio import AnalogOut
 9  
10  analog_out = AnalogOut(board.A0)
11  
12  while True:
13      # Count up from 0 to 65535, with 64 increment
14      # which ends up corresponding to the DAC's 10-bit range
15      for i in range(0, 65535, 64):
16          analog_out.value = i