diff --git a/common/modules/mixly-modules/common/statusbar-serial.js b/common/modules/mixly-modules/common/statusbar-serial.js
index 483c4531..cae4749e 100644
--- a/common/modules/mixly-modules/common/statusbar-serial.js
+++ b/common/modules/mixly-modules/common/statusbar-serial.js
@@ -85,6 +85,7 @@ class StatusBarSerial extends PageBase {
     #$hex_ = null;
     #opened_ = false;
     #valueTemp_ = '';
+    #receiveTemp_ = '';
     #manager_ = null;
     #output_ = null;
     #chart_ = null;
@@ -253,6 +254,7 @@ class StatusBarSerial extends PageBase {
                 + `==${Msg.Lang['statusbar.serial.port']} ${portName} ${Msg.Lang['statusbar.serial.close']}==`;
             this.setValue(output);
             this.#valueTemp_ = '';
+            this.#receiveTemp_ = '';
             this.#$sendInput_.val('');
             this.#$sendInput_.attr('disabled', true);
             this.#chart_.stop();
@@ -274,6 +276,9 @@ class StatusBarSerial extends PageBase {
         });
 
         this.#serial_.bind('onChar', (char) => {
+            if (!this.#reading_) {
+                this.#receiveTemp_ += char;
+            }
             if (!this.#reading_ || this.#output_.hexChecked()) {
                 return;
             }
@@ -453,12 +458,21 @@ class StatusBarSerial extends PageBase {
     async open() {
         await this.#serial_.open(this.#config_.baud);
         if (SELECTED_BOARD?.serial?.ctrlCBtn) {
-            await this.#serial_.sleep(500);
+            await this.#serial_.sleep(1000);
             await this.#serial_.interrupt();
-            await this.#serial_.sleep(200);
+            const startTime = Number(new Date());
+            let endTime = startTime;
+            while (endTime - startTime < 2000) {
+                await this.#serial_.sleep(50);
+                if (this.#receiveTemp_.indexOf('>>>') !== -1) {
+                    break;
+                }
+                endTime = Number(new Date());
+            }
             this.#valueTemp_ = '';
             this.empty();
             this.startRead();
+            this.#receiveTemp_ = '';
             await this.#serial_.reset();
         } else {
             this.startRead();