Let’s take a look at this schematic first. The
right port is obviously a common anode LED light port.
At this time, it should be set to low level to turn on the LED.
High level to turn off the LED.
However, I configured the LED today and found that it is the opposite.
with no way out
through repeated testing
should be assigned to the latch negate operation of the
harm
One note for embedded blue bridge cup LED type
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Origin blog.csdn.net/m0_46179894/article/details/108212357
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