I understand how to connect one ESP-12 to an Arduino, but it's possible to make the ESP-12 connect to two arduinos? I found a lot of information about the gpio as txd-rdx but not at the inverse.

Is possible to connect pins 21 & 22 to one arduino and 7 & 16 to another one? What condiderations must I have to?

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  • 1
    You can use softserial and use any io pins to connect the two arduinos via serial.
    – MatsK
    Aug 1, 2017 at 22:14
  • What advantage would sharing give you? Is it worth the hassle? I can't think of a reason why it isn't possible. Aug 2, 2017 at 15:24


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