Merge pull request #2517 from ChuckMash/serial+

Extend Serial functions. Baudrate changeable during runtime and fast LED data retrieval

wled00/fcn_declare.h

@@ -287,6 +287,7 @@ void clearEEPROM();
 
 //wled_serial.cpp
 void handleSerial();
+void updateBaudRate(uint32_t rate);
 
 //wled_server.cpp
 bool isIp(String str);