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GPIO 2 = 0 blocks the start of the SONOFF 4CH Pro R2.

Posted: 29 Aug 2019, 21:46
by Sigalou
Hello everyone,

I noticed something strange, when I use GPIO2 = 1 when powering on the Sonoff 4CH pro, it hangs. Red LEDs 1 and 2 and 3 are lit in red and Sonoff does not start.
If GPIO2 = 0 then everything happens normally and the Sonoff starts well.
It does not happen when I reboot.
Do you have an explanation ??

In the Sonoff 4CH pro, there are only 3 pins GPIO2, Rx and Tx and obviously only GPIO2 accepts to be an input (ON / OFF). So I do not have much choice.

Thanks for your help.

Re: GPIO 2 = 0 blocks the start of the SONOFF 4CH Pro R2.

Posted: 29 Aug 2019, 21:52
by TD-er
See this part of the documentation: https://espeasy.readthedocs.io/en/lates ... on-esp8266
So as you can see it is quite "normal" to see this behavior.