Add option to set module name at runtime, and add extra examples in platformio_overrides.ini (wled#2578)

* Added option to set the name of the module at runtime.

* added example how to set number of LEDs at runtime

* Example to enable/set IR remote type at runtime

* Clarification on how to use platformio_overrides

* Example for setting abl milliamp limit at runtime

* Corrected example set LED count

Author: SpeakingOfBrad

platformio_override.ini.sample

@@ -19,6 +19,11 @@ build_flags = ${common.build_flags_esp8266}
 ; *** Use custom settings from file my_config.h
    -DWLED_USE_MY_CONFIG
 ; *********************************************************************
+;
+;
+; *** To use the below defines/overrides, copy and paste each onto it's own line just below build_flags in the section above.
+; 
+; disable specific features
 ;  -D WLED_DISABLE_OTA
 ;  -D WLED_DISABLE_ALEXA
 ;  -D WLED_DISABLE_BLYNK
@@ -44,3 +49,15 @@ build_flags = ${common.build_flags_esp8266}
 ;   for the Magic Home LED Controller use PWM pins 5,12,13,15
 ;   for the H801 controller use PINs 15,13,12,14 (W2 = 04)
 ;   for the BW-LT11 controller use PINs 12,4,14,5
+;   
+; set the name of the module - make sure there is a quote-backslash-quote before the name and a backslash-quote-quote after the name
+;   -D SERVERNAME="\"WLED\""
+;   
+; set the number of LEDs
+;   -D DEFAULT_LED_COUNT=30
+;   
+; set milliampere limit when using ESP pin to power leds
+;   -D ABL_MILLIAMPS_DEFAULT =850
+;
+; enable IR by setting remote type
+;   -D IRTYPE=0 //0 Remote disabled | 1 24-key RGB | 2 24-key with CT | 3 40-key blue | 4 40-key RGB | 5 21-key RGB | 6 6-key black | 7 9-key red | 8 JSON remote

wled00/wled.h

@@ -293,7 +293,11 @@ WLED_GLOBAL uint16_t transitionDelay _INIT(750);    // default crossfade duratio
 WLED_GLOBAL byte briMultiplier _INIT(100);          // % of brightness to set (to limit power, if you set it to 50 and set bri to 255, actual brightness will be 127)
 
 // User Interface CONFIG
-WLED_GLOBAL char serverDescription[33] _INIT("WLED");  // Name of module
+#ifndef SERVERNAME
+WLED_GLOBAL char serverDescription[33] _INIT("WLED");  // Name of module - use default
+#else
+WLED_GLOBAL char serverDescription[33] _INIT(SERVERNAME);  // use predefined name
+#endif
 WLED_GLOBAL bool syncToggleReceive     _INIT(false);   // UIs which only have a single button for sync should toggle send+receive if this is true, only send otherwise
 
 // Sync CONFIG