docs/esp8266/quickref: Add note about GPIO16.
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@ -113,6 +113,9 @@ Use the ``machine.Pin`` class::
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Available pins are: 0, 1, 2, 3, 4, 5, 12, 13, 14, 15, 16.
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Available pins are: 0, 1, 2, 3, 4, 5, 12, 13, 14, 15, 16.
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Note that Pin(1) and Pin(3) are REPL UART TX and RX respectively.
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Note that Pin(1) and Pin(3) are REPL UART TX and RX respectively.
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Also note that Pin(16) is a special pin (used for wakeup from deepsleep
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mode) and may be not available for use with higher-level classes like
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``Neopixel``.
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PWM (pulse width modulation)
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PWM (pulse width modulation)
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----------------------------
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----------------------------
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