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Author Topic: How to use GPIO2,14 & 12 of ESP8266 as input?  (Read 695 times)

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Offline mrnamsTopic starter

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How to use GPIO2,14 & 12 of ESP8266 as input?
« on: October 24, 2023, 05:45:23 pm »
I have ESP8266 NodeMCU V3 board, I defined GPIO2, GPIO14, GPIO12 as input and set to LOW in setup function, but when I read state of these GPIO they always give HIGH, I read that these are set to HIGH by board after bootup.
Please not I have used all other GPIO, and they are working, so only these two are available.
My question is what to do to use these GPIO as input?
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Offline m k

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Re: How to use GPIO2,14 & 12 of ESP8266 as input?
« Reply #1 on: October 30, 2023, 08:02:52 pm »
Input pins are externally defined.
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Offline liaifat85

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Re: How to use GPIO2,14 & 12 of ESP8266 as input?
« Reply #2 on: November 01, 2023, 11:07:48 pm »
I think you have to use a board with a higher number of GPIO pins.
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