Added SV=2 to HTTP API, allow selecting single segment only

CHANGELOG.md

@@ -2,6 +2,10 @@
 
 ### Development versions after 0.10.0 release
 
+#### Build 2006251
+
+-   Added `SV=2` to HTTP API, allow selecting single segment only
+
 #### Build 2006250
 
 -   Fix Alexa not turning off white channel (fixes #1012)

wled00/set.cpp

@@ -423,7 +423,16 @@ bool handleSet(AsyncWebServerRequest *request, const String& req)
 
   WS2812FX::Segment& mainseg = strip.getSegment(main);
   pos = req.indexOf("SV="); //segment selected
-  if (pos > 0) mainseg.setOption(SEG_OPTION_SELECTED, (req.charAt(pos+3) != '0'));
+  if (pos > 0) {
+    byte t = getNumVal(&req, pos);
+    if (t == 2) {
+      for (uint8_t i = 0; i < strip.getMaxSegments(); i++)
+      {
+        strip.getSegment(i).setOption(SEG_OPTION_SELECTED, 0);
+      }
+    }
+    mainseg.setOption(SEG_OPTION_SELECTED, t);
+  }
 
   uint16_t startI = mainseg.start;
   uint16_t stopI = mainseg.stop;

wled00/wled.h

@@ -8,7 +8,7 @@
  */
 
 // version code in format yymmddb (b = daily build)
-#define VERSION 2006250
+#define VERSION 2006251
 
 // ESP8266-01 (blue) got too little storage space to work with all features of WLED. To use it, you must use ESP8266 Arduino Core v2.4.2 and the setting 512K(No SPIFFS).