i have in my house 3 different esp-8266-12e devices on NodeMCU modules that i use for IOT for a domotic system in my house...
each of those is programmed with arduino to send data from sensors... for example... when a pir turn on the esp send a command through MQTT and things like that... i didn't set up any of those as an access point.
now i realized 2 of them create this networks called "AI-THINKER_xxxx" and the third one a network called "testAP" this thing drives me crazy... and also the consume useful frequencies for nothing.
why is that happening?
is there any way to turn these networks off?
the arduino sketch i loaded on the devices just use a connection to my wifi network as clients.
thanks