Bugfix to allow more than 10 buttons.

wled00/data/settings_leds.htm

@@ -350,8 +350,8 @@ ${i+1}:
     }
     function addBtn(i,p,t) {
       var c = gId("btns").innerHTML;
-      var bt = "BT" + i;
-      var be = "BE" + i;
+      var bt = "BT" + String.fromCharCode((i<10?48:55)+i);
+      var be = "BE" + String.fromCharCode((i<10?48:55)+i);
       c += `Button ${i} GPIO: <input type="number" min="-1" max="40" name="${bt}" onchange="UI()" class="xs" value="${p}">`;
       c += `&nbsp;<select name="${be}">`
       c += `<option value="0" ${t==0?"selected":""}>Disabled</option>`;

wled00/set.cpp

@@ -128,8 +128,8 @@ void handleSettingsSet(AsyncWebServerRequest *request, byte subPage)
     rlyMde = (bool)request->hasArg(F("RM"));
 
     for (uint8_t i=0; i<WLED_MAX_BUTTONS; i++) {
-      char bt[4] = "BT"; bt[2] = 48+i; bt[3] = 0; // button pin
-      char be[4] = "BE"; be[2] = 48+i; be[3] = 0; // button type
+      char bt[4] = "BT"; bt[2] = (i<10?48:55)+i; bt[3] = 0; // button pin (use A,B,C,... if WLED_MAX_BUTTONS>10)
+      char be[4] = "BE"; be[2] = (i<10?48:55)+i; be[3] = 0; // button type (use A,B,C,... if WLED_MAX_BUTTONS>10)
       int hw_btn_pin = request->arg(bt).toInt();
       if (pinManager.allocatePin(hw_btn_pin,false,PinOwner::Button)) {
         btnPin[i] = hw_btn_pin;