ESP8266 Community Forum

- Fri Feb 05, 2016 6:37 pm #40530 You are a genius

BTW, I'm seeing that the ArduinoESP core has integrate Serial.swap(), so you can try it out instead of using the plain SDK alternate function.
It should be something like :

Code: Select allSerial.swap(15); //toggle between use of GPIO13/GPIO15 or GPIO3/GPIO(1/2) as RX and TX


This did the trick.

Code: Select allserial.swap();

Very likely the SDK function would have done the trick too if I had tried harder.
I had two instances of Serial.begin in the sketch and at both places I had to put the function into it.
I like this short code much more than the SDK function
so thanks again for your investigation into this.

- Wed May 10, 2017 3:44 am #65793

You are a genius

BTW, I'm seeing that the ArduinoESP core has integrate Serial.swap(), so you can try it out instead of using the plain SDK alternate function.
It should be something like :

Code: Select allSerial.swap(15); //toggle between use of GPIO13/GPIO15 or GPIO3/GPIO(1/2) as RX and TX


This did the trick.

Code: Select allserial.swap();

Very likely the SDK function would have done the trick too if I had tried harder.
I had two instances of Serial.begin in the sketch and at both places I had to put the function into it.
I like this short code much more than the SDK function
so thanks again for your investigation into this.

Hi, can you share working code with swap function?

- Wed May 10, 2017 3:46 am #65794

You are a genius

BTW, I'm seeing that the ArduinoESP core has integrate Serial.swap(), so you can try it out instead of using the plain SDK alternate function.
It should be something like :

Code: Select allSerial.swap(15); //toggle between use of GPIO13/GPIO15 or GPIO3/GPIO(1/2) as RX and TX


This did the trick.

Code: Select allserial.swap();

Very likely the SDK function would have done the trick too if I had tried harder.
I had two instances of Serial.begin in the sketch and at both places I had to put the function into it.
I like this short code much more than the SDK function
so thanks again for your investigation into this.

Hi, can you share working code with swap function?