Wiki source code of ESP8266 second Serial port

Last modified by Victor Zhang on 17:03, 17/04/2020

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1 * Ref: [[https:~~/~~/github.com/esp8266/Arduino/issues/482>>url:https://github.com/esp8266/Arduino/issues/482]]
2 * Summary, the serial1 only have send but can't be in "listen" mode for receiv