diff --git a/esp-wemos-schild/esp-wemos-schild.ino b/esp-wemos-schild/esp-wemos-schild.ino
index defa2c8..13e198c 100644
--- a/esp-wemos-schild/esp-wemos-schild.ino
+++ b/esp-wemos-schild/esp-wemos-schild.ino
@@ -7,7 +7,7 @@
 #define PIN            D1
 #define NUMPIXELS      144
 
-uint16_t i=0,j=0,wait = 50;
+uint16_t effectI=0,effectJ=0,wait = 50;
 unsigned long lastCall = 0;
 byte wPos = 0;
 
@@ -63,7 +63,7 @@ bool onSetBrightness(const HomieRange& range, const String& value){
 bool onSetEffect(const HomieRange& range, const String& value){
   effect = value;
   effect.toLowerCase();
-  i=0,j=0,wait=50;
+  effectI=0,effectJ=0,wait=50;
   stripNode.setProperty("effect").send(value);
 }
 
@@ -137,37 +137,37 @@ void loopHandler() {
     if(wait + lastCall >= millis()){
       return;
     }
-    if(j<256) {
-      if(i<pixels.numPixels()) {
-        pixels.setPixelColor(i, wheel((i+j) & 255));
-        i++;
+    if(effectJ<256) {
+      if(effectI<pixels.numPixels()) {
+        pixels.setPixelColor(effectI, wheel((effectI+effectJ) & 255));
+        effectI++;
       }
       else {
-        i=0;
-        j++;
+        effectI=0;
+        effectJ++;
       }
       pixels.show();
       lastCall = millis();
     }
     else {
-      j=0;
+      effectJ=0;
     }
   }
   else if (effect == "rainbowcycle") {
-    if(j<256*5) {
-      if(i<pixels.numPixels()) {
-        pixels.setPixelColor(i, wheel(((i * 256 / pixels.numPixels()) + j) & 255));
-        i++;
+    if(effectJ<256*5) {
+      if(effectI<pixels.numPixels()) {
+        pixels.setPixelColor(effectI, wheel(((effectI * 256 / pixels.numPixels()) + effectJ) & 255));
+        effectI++;
       }
       else {
-        i=0;
-        j++;
+        effectI=0;
+        effectJ++;
       }
       pixels.show();
       lastCall = millis();
     }
     else {
-      j=0;
+      effectJ=0;
     }
   }
 }