diff --git a/simpleExpression_blocks.js b/simpleExpression_blocks.js
index 91a1cdd..8c3bf98 100644
--- a/simpleExpression_blocks.js
+++ b/simpleExpression_blocks.js
@@ -1,26 +1,40 @@
+Facilino.LANG_COLOUR_SCREEN_LEDSTRIP = '#8EAC32';
+Facilino.locales.defaultLanguage["LANG_SUBCATERGORY_WS2812"]="LED Strip";
+Facilino.locales.defaultLanguage["LANG_SIMPLEEXPRESSIONS_PIN"]="PIN";
+Facilino.locales.defaultLanguage["LANG_SIMPLEEXPRESSIONS_SHOWMOUTH_TOOLTIP"]="Draw an expression on the WS2812 led strip (ring-7)";
+
 Blockly.Blocks['show_mouth'] = {
-  category: 'SimpleExpressions',
-  colour: '#fbb117',
-  helpUrl: Facilino.getHelpUrl('show_mouth'),
-  tags: [],
-  examples: [],
-  init: function() {
-    this.appendDummyInput()
-        .appendField("showMouth");
-    this.appendValueInput("Color")
-        .setCheck(null)
-        .appendField("Color");
-    this.setColour("#fbb117");
-    this.setTooltip("");
-  }
+	category: Facilino.locales.getKey('LANG_CATEGORY_SCREEN'),
+	subcategory: Facilino.locales.getKey('LANG_SUBCATERGORY_WS2812'),
+	category_colour: Facilino.LANG_COLOUR_SCREEN,
+	colour: Facilino.LANG_COLOUR_SCREEN_LEDSTRIP,
+	helpUrl: Facilino.getHelpUrl('show_mouth'),
+	tags: [],
+	examples: [],
+	init: function() {
+		this.appendDummyInput('').appendField("WS2812 7-Ring").appendField(new Blockly.FieldImage('img/blocks/led_strip.svg', 40*options.zoom, 40*options.zoom));
+		this.appendValueInput('PIN').appendField(Facilino.locales.getKey('LANG_SIMPLEEXPRESSIONS_PIN')).setAlign(Blockly.ALIGN_RIGHT).setCheck(Number);
+		this.appendDummyInput('').appendField('Expression').appendField(new Blockly.FieldDropdown([['Zeros','zeros'],['Happy Small','happySmall'],['Happy Full','happyFull'],['Sad Small','sadSmall'],['Sad Full','sadFull'],['Neutral','neutral'],['Circle','circle'],['Center','center'],['Hook','hook'],['Upsidedown Hook','upsidedownhook'],['Kooh','kooh'],['Upsidedown Kooh','upsidedownkooh'],['Cross','cross'],['Rect','rect'],['Left Arrow','leftarrow'],['Right Arrow','rightarrow'],['Left Half','lefthalf'],['Right Half','righthalf']]),'EXPRESSION').setAlign(Blockly.ALIGN_RIGHT);
+		var colour = new Blockly.FieldColour('#000000');
+		colour.setColours(['#000000','#808080','#C0C0C0','#FFFFFF','#800000','#FF0000','#808000','#FFFF00','#008000','#00FF00','#008080','#00FFFF','#000080','#0000FF','#800080','#FF00FF']).setColumns(4);
+		this.appendDummyInput('').appendField('Color').appendField(colour,'COLOR').setAlign(Blockly.ALIGN_RIGHT);
+		this.setPreviousStatement(true,'code');
+		this.setNextStatement(true,'code');
+		this.setColour(Facilino.LANG_COLOUR_SCREEN_LEDSTRIP);
+		this.setTooltip("");
+}
 };
-
-
+		
 Blockly.Arduino['show_mouth'] = function(block) {
-  var input_color = Blockly.Arduino.valueToCode(block, 'Color', Blockly.Arduino.ORDER_ATOMIC);
-  var code='SimpleExpressions.showMouth("'+'mouth_name'+'", ' + color + ')' ;
-  code+= '\n';
-  return code;
+var input_expression = this.getFieldValue('EXPRESSION');
+var input_color = this.getFieldValue('COLOR');
+var input_pin = Blockly.Arduino.valueToCode(this,'PIN',Blockly.Arduino.ORDER_ATOMIC) || '';
+Blockly.Arduino.definitions_['define_simpleexpressions_h'] = '#include <SimpleExpressions.h>';
+Blockly.Arduino.setups_['setup_simpleexpressions_mouth'] = 'SimpleExpressions.initMouth('+input_pin+');\n';
+var color_rgb=Facilino.hexToRgb(input_color);
+var code='SimpleExpressions.writeMouth("'+input_expression+'",'+color_rgb.r +','+color_rgb.g+','+color_rgb.b+');\n' ;
+code+= '\n';
+return code;
 };
 
 Blockly.Blocks['play_sound'] = {
diff --git a/src/SimpleExpressions.cpp b/src/SimpleExpressions.cpp
index 0b13ebe..14a9790 100755
--- a/src/SimpleExpressions.cpp
+++ b/src/SimpleExpressions.cpp
@@ -18,6 +18,21 @@ void SimpleExpressionsClass::init(int aMouthPin, int aBuzzerPin) {
   clearMouth();
 }
 
+void SimpleExpressionsClass::init(int aMouthPin, int aBuzzerPin) {
+  mouth = Adafruit_NeoPixel(7, aMouthPin, NEO_GRB + NEO_KHZ800);
+  mouth.begin();
+  clearMouth();
+}
+
+void SimpleExpressionsClass::initBuzzer(int aBuzzerPin) {
+  buzzerPin = aBuzzerPin;
+
+  #if defined(ESP32)
+    ledcSetup(ledc_channel, 2000, 8); // channel, max frequency, resolution
+    ledcAttachPin(aBuzzerPin, ledc_channel);
+  #endif
+}
+
 ///////////////////////////////////////////////////////////////////
 //-- MOUTHS  ----------------------------------------//
 ///////////////////////////////////////////////////////////////////
diff --git a/src/SimpleExpressions.h b/src/SimpleExpressions.h
index 0b7fd6c..ca77e94 100755
--- a/src/SimpleExpressions.h
+++ b/src/SimpleExpressions.h
@@ -16,6 +16,8 @@ class SimpleExpressionsClass
   public:
     // General
     void init(int mouthPin, int buzzerPin);
+	void initMouth(int mouthPin);
+	void initBuzzer(int buzzerPin);
 
     // Mouths
     void printMouth(int number, int r, int g, int b);