INPUT_PULLUP ok on these digital pins?

Projects Programming
1

Can I just check if it's ok to use these digital pins D3 & D4 and define as pullup in the code? I assume the esp8266 has already booted so defining in code will not be a problem to affect booting?

e.g.

pinMode(D3, INPUT_PULLUP);

ESP8266 Wemos pin explanations - Copy

2

correct.

1 Like
3

Thank you :smiley:

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4

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