8000 docs: Update analog IO PWM figure. · ladyada/circuitpython@4a0cb5d · GitHub
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docs: Update analog IO PWM figure.
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‎docs/programming_guide/02_analog_io.rst

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@@ -427,9 +427,9 @@ adjusting the voltage output by the pin!
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To further illustrate how PWM is different from true analog output, look at the
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image below which shows oscilloscope output of a PWM signal at different duty
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cycles (0%, 33%, 50%, 66%, and 100%). Notice how as the duty cycle increases
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cycles (0%, 25%, 50%, 75%, and 100%). Notice how as the duty cycle increases
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the amount of time the signal is at a high logic level (3.3V) gets longer. At
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66% duty cycle the signal is high for twice as long as at 33% duty cycle
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75% duty cycle the signal is high for twice as long as at 25% duty cycle
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(compare how long the tops of each wave are to check for yourself). At the
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extremes of 0% and 100% you can also see the signal never changes and is always
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at a high or low level!

‎docs/programming_guide/images/02_analog_io_pwm.png

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