Configuration Mode
DeletedIn response to Christiaan Broeders (View post):
For easing development there is the option to use the button push.But if physical acces to the devic...
I'm not skilled enough to say that it's a god way but it solved my problem on an distant Esp.
I soldered D2 D3 together and used MQTT topic config, payload true, to set D2 false for 7000ms.
Sending config false set D2 false for 3100ms was update.
So when I send config true or false from my phone or node-red Esp goes into respective state