# This work is licensed under the MIT license. # Copyright (c) 2013-2023 OpenMV LLC. All rights reserved. # https://github.com/openmv/openmv/blob/master/LICENSE # # DAC Timed Write Example # # This example shows how to use the DAC pin output onboard your OpenMV Cam. import math from pyb import DAC # create a buffer containing a sine-wave buf = bytearray(100) for i in range(len(buf)): buf[i] = 128 + int(127 * math.sin(2 * math.pi * i / len(buf))) # output the sine-wave at 400Hz dac = DAC("P6") dac.write_timed(buf, 400 * len(buf), mode=DAC.CIRCULAR)