Fix persistent digit

prog/sources/setup-loop.cpp

@@ -63,13 +63,19 @@ void loop (USER_MODE) {
 			digitalToggle(LED[i]);
 			actionDone[i] = true;
 			counter ++;
-			counter %= 20;
+			
+			// Prevent persistent digit
+			if (counter >= 20) {
+				counter = 0;
+				gotoLineColumn(MODE_ 2, 12);
+				printChar(MODE_ ' ');
+			}
 
 			// Show action on LCD
 			gotoLineColumn(MODE_ 1, 13 - i);
 			printChar(MODE_ '1');
 
-			gotoLineColumn(MODE_ 2, 12);
+			gotoLineColumn(MODE_ 2, 13 - counter / 10);
 			printUnsigned(MODE_ counter);
 		}
 	}