Add new DAC example.

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iabdalkader 2020-02-07 21:04:56 +02:00
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# 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)