Multiple analog button fix for #3549

wled00/button.cpp

@@ -226,11 +226,11 @@ void handleAnalog(uint8_t b)
 
 void handleButton()
 {
-  static unsigned long lastRead = 0UL;
+  static unsigned long lastAnalogRead = 0UL;
   static unsigned long lastRun = 0UL;
   unsigned long now = millis();
 
-  if (strip.isUpdating() && (now - lastRun < 400)) return; // don't interfere with strip update (unless strip is updating continuously, e.g. very long strips)
+  if (strip.isUpdating() && (now - lastRun < ANALOG_BTN_READ_CYCLE+1)) return; // don't interfere with strip update (unless strip is updating continuously, e.g. very long strips)
   lastRun = now;
 
   for (uint8_t b=0; b<WLED_MAX_BUTTONS; b++) {
@@ -243,9 +243,8 @@ void handleButton()
     if (usermods.handleButton(b)) continue; // did usermod handle buttons
 
     if (buttonType[b] == BTN_TYPE_ANALOG || buttonType[b] == BTN_TYPE_ANALOG_INVERTED) { // button is not a button but a potentiometer
-      if (now - lastRead > ANALOG_BTN_READ_CYCLE) {
+      if (now - lastAnalogRead > ANALOG_BTN_READ_CYCLE) {
         handleAnalog(b);
-        lastRead = now;
       }
       continue;
     }
@@ -325,6 +324,9 @@ void handleButton()
       shortPressAction(b);
     }
   }
+  if (now - lastAnalogRead > ANALOG_BTN_READ_CYCLE) {
+    lastAnalogRead = now;
+  }
 }
 
 // If enabled, RMT idle level is set to HIGH when off