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