diff --git a/src/playground/blocks/hardwareLite/block_microbit2_lite.js b/src/playground/blocks/hardwareLite/block_microbit2_lite.js
index a74f28e860..4226cc6f94 100644
--- a/src/playground/blocks/hardwareLite/block_microbit2_lite.js
+++ b/src/playground/blocks/hardwareLite/block_microbit2_lite.js
@@ -4,12 +4,12 @@ const _throttle = require('lodash/throttle');
 
 const EVENT_INTERVAL = 150;
 
-(function () {
+(function() {
     Entry.Microbit2lite = new (class Microbit2Lite {
         constructor() {
             this.commandStatus = {};
             this.btnEventIntervalId = -1;
-            this.retryLimitCnt = 5;
+            this.retryLimitCnt = 4;
             this.portData = {
                 baudRate: 115200,
                 dataBits: 8,
@@ -292,7 +292,7 @@ const EVENT_INTERVAL = 150;
 
         async initialHandshake() {
             const defaultCMD = `${this.functionKeys.LOCALDATA}`;
-            const response = await Entry.hwLite.sendAsync(defaultCMD);
+            const response = await Entry.hwLite.sendAsyncWithThrottle(defaultCMD);
             if (response && response.indexOf('localdata') > -1) {
                 const version = response.split(';')[1];
                 if (!version) {
@@ -306,14 +306,19 @@ const EVENT_INTERVAL = 150;
 
             if (this.version === '2') {
                 Entry.addEventListener('run', this.handleBtnEventInterval.bind(this));
-                Entry.addEventListener('beforeStop', () => { clearInterval(this.btnEventIntervalId) });
+                Entry.addEventListener('beforeStop', () => {
+                    clearInterval(this.btnEventIntervalId);
+                });
             }
 
             return response;
         }
 
         handleBtnEventInterval() {
-            this.btnEventIntervalId = setInterval(this.listenBtnPressedEvent.bind(this), this.duration);
+            this.btnEventIntervalId = setInterval(
+                this.listenBtnPressedEvent.bind(this),
+                this.duration
+            );
         }
 
         async listenBtnPressedEvent() {
@@ -372,9 +377,8 @@ const EVENT_INTERVAL = 150;
                 return;
             }
             const result = await Entry.hwLite.sendAsyncWithThrottle(command);
-
-            if (!result ||
-                this.getCommandType(command) !== this.getCommandType(result) ||
+            if (
+                (!result || this.getCommandType(command) !== this.getCommandType(result)) &&
                 // INFO : localdata 명령어는 우선순위가 낮으므로 반복하지 않음
                 command !== `${this.functionKeys.LOCALDATA};`
             ) {
@@ -582,7 +586,8 @@ const EVENT_INTERVAL = 150;
                         microbit2lite_get_btn: "선택한 버튼이 눌렸다면 '참'으로 판단합니다.",
                         microbit2lite_get_logo: "로고를 터치했다면 '참'으로 판단합니다.",
                         microbit2lite_get_gesture: "선택한 움직임이 감지되면 '참'으로 판단합니다.",
-                        microbit2lite_get_acc: '선택한 버튼이 눌리면 아래에 연결된 블록들을 실행합니다.',
+                        microbit2lite_get_acc:
+                            '선택한 버튼이 눌리면 아래에 연결된 블록들을 실행합니다.',
                         microbit2lite_btn_event: '%1 %2 버튼을 눌렀을 때',
                         microbit2lite_get_direction: '나침반 방향 값입니다. (0~360) ',
                         microbit2lite_get_field_strength_axis: '선택한 축의 자기장 세기 값입니다.',
@@ -793,7 +798,8 @@ const EVENT_INTERVAL = 150;
                         microbit2lite_get_gesture:
                             "When the selected movement is detected, it is judged as 'True'.",
                         microbit2lite_get_acc: 'The acceleration value of the selected axis.',
-                        microbit2lite_btn_event: 'When the selected button is pressed, the connected blocks below will run',
+                        microbit2lite_btn_event:
+                            'When the selected button is pressed, the connected blocks below will run',
                         microbit2lite_get_direction: 'The compass direction value. (0~360)',
                         microbit2lite_get_field_strength_axis:
                             'The magnetic field strength value of the selected axis.',
@@ -1012,7 +1018,7 @@ const EVENT_INTERVAL = 150;
             };
         }
 
-        getBlocks = function () {
+        getBlocks = function() {
             return {
                 microbit2lite_common_title: {
                     skeleton: 'basic_text',
@@ -1952,7 +1958,7 @@ const EVENT_INTERVAL = 150;
                         },
                     ],
                     def: {
-                        type: 'microbit2lite_btn_event'
+                        type: 'microbit2lite_btn_event',
                     },
                     paramsKeyMap: {
                         VALUE: 1,