B4R Question ESP8266 and Serial1

[peacemaker]

Hi, All

How most easy to use second UART of ESP8266, without touching the default Serial-to-USB of boards ?
It's needed for UART sensor boards.
I have found that there is some port swap possibility - just swap Serial to Serial1 after FW flashing from USB.

Serial.begin(9600, SERIAL_8N1); //GPIO1 (TX) and GPIO3 (RX), 9600kbps, 8-bit data, no parity, 1-bit stop
//your brilliant code here
Serial.swap(); //GPIO15 (TX) and GPIO13 (RX)
Serial.flush(); //clear serial buffer

//your brilliant code here

Anyone tried ? Any B4R code example ?

 

[peacemaker]

OK, used SoftwareSerial lib with free GPIO13 and GPIO2 pins, avoiding GPIO1 and GPIO15 that used during flashing.