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By paccer
#23778 Hi,
Does anyone have a reasonable explanation as to why it seems to "freeze" my esp8266 (ESP-01) when i execute the following:
Code: Select allgpio.mode(9, gpio.OUTPUT)

pin 9 is GPIO3 (RXD) - which i should be able to use as GPIO..

I'm telnetting to my device (not using the serial connection)

also, it works fine with 10 (GPIO1), which is TXD

I've read multiple old posts with people successfully using RXD as GPIO,
and i'm wondering if it might have broken recently?
Thanks