diff --git a/common/modules/mixly-modules/common/app.js b/common/modules/mixly-modules/common/app.js
index e0d3690d..bf5a0347 100644
--- a/common/modules/mixly-modules/common/app.js
+++ b/common/modules/mixly-modules/common/app.js
@@ -239,6 +239,9 @@ class App extends Component {
             id: 'command-burn-btn',
             displayText: Msg.Lang['nav.btn.burn'],
             preconditionFn: () => {
+                if (!goog.isElectron && !goog.hasSocketServer && Serial.type !== 'serialport') {
+                    return false;
+                }
                 return SELECTED_BOARD?.nav?.burn;
             },
             callback: () => BU.initBurn(),
diff --git a/common/modules/mixly-modules/deps.json b/common/modules/mixly-modules/deps.json
index 75d16e54..2676d792 100644
--- a/common/modules/mixly-modules/deps.json
+++ b/common/modules/mixly-modules/deps.json
@@ -1639,6 +1639,7 @@
             "Mixly.Env",
             "Mixly.Web.SerialPort",
             "Mixly.Web.USB",
+            "Mixly.Web.USBMini",
             "Mixly.Web.HID"
         ],
         "provide": [
@@ -1656,6 +1657,17 @@
             "Mixly.Web.SerialPort"
         ]
     },
+    {
+        "path": "/web/usb-mini.js",
+        "require": [
+            "Mixly.Serial",
+            "Mixly.Registry",
+            "Mixly.Web"
+        ],
+        "provide": [
+            "Mixly.Web.USBMini"
+        ]
+    },
     {
         "path": "/web/usb.js",
         "require": [
diff --git a/common/modules/mixly-modules/web/burn-upload.js b/common/modules/mixly-modules/web/burn-upload.js
index af2a316e..fe801ce4 100644
--- a/common/modules/mixly-modules/web/burn-upload.js
+++ b/common/modules/mixly-modules/web/burn-upload.js
@@ -603,6 +603,7 @@ BU.uploadByUSB = async (portName) => {
         resize: false,
         closeBtn: 0,
         success: async function (layero, index) {
+            $('#mixly-loader-btn').hide();
             try {
                 let prevPercent = 0;
                 await partialFlashing.flashAsync(new BoardId(0x9900), FSWrapper, progress => {
@@ -636,6 +637,10 @@ BU.uploadByUSB = async (portName) => {
             }
             BU.burning = false;
             BU.uploading = false;
+        },
+        end: function () {
+            $('#mixly-loader-btn').css('display', 'inline-block');
+            $('#mixly-loader-div').css('display', 'none');
         }
     });
 }
@@ -653,7 +658,7 @@ BU.uploadWithAmpy = (portName) => {
     const editor = mainWorkspace.getEditorsManager().getActive();
     let useBuffer = true, dataLength = 256;
     if (BOARD.web.com === 'usb') {
-        useBuffer = false;
+        useBuffer = true;
         dataLength = 64;
     } else if (BOARD.web.com === 'hid') {
         useBuffer = true;
@@ -667,6 +672,7 @@ BU.uploadWithAmpy = (portName) => {
         resize: false,
         closeBtn: 0,
         success: async function (layero, index) {
+            $('#mixly-loader-btn').hide();
             const serial = new Serial(portName);
             const ampy = new Ampy(serial, useBuffer, dataLength);
             const code = editor.getCode();
@@ -727,6 +733,10 @@ BU.uploadWithAmpy = (portName) => {
             }
             BU.burning = false;
             BU.uploading = false;
+        },
+        end: function () {
+            $('#mixly-loader-btn').css('display', 'inline-block');
+            $('#mixly-loader-div').css('display', 'none');
         }
     });
 }
diff --git a/common/modules/mixly-modules/web/hid.js b/common/modules/mixly-modules/web/hid.js
index 0fc6ce8b..63daa974 100644
--- a/common/modules/mixly-modules/web/hid.js
+++ b/common/modules/mixly-modules/web/hid.js
@@ -14,6 +14,7 @@ const {
 
 class WebHID extends Serial {
     static {
+        this.type = 'hid';
         this.portToNameRegistry = new Registry();
         this.nameToPortRegistry = new Registry();
 
diff --git a/common/modules/mixly-modules/web/serial.js b/common/modules/mixly-modules/web/serial.js
index 29e72ce0..6a9d7c19 100644
--- a/common/modules/mixly-modules/web/serial.js
+++ b/common/modules/mixly-modules/web/serial.js
@@ -4,6 +4,7 @@ goog.require('Mixly.Config');
 goog.require('Mixly.Env');
 goog.require('Mixly.Web.SerialPort');
 goog.require('Mixly.Web.USB');
+goog.require('Mixly.Web.USBMini');
 goog.require('Mixly.Web.HID');
 goog.provide('Mixly.Web.Serial');
 
@@ -12,6 +13,7 @@ const { Config, Env, Web } = Mixly;
 const {
     SerialPort,
     USB,
+    USBMini,
     HID
 } = Web;
 
@@ -25,7 +27,11 @@ if (goog.platform() === 'win32' && goog.fullPlatform() !== 'win10') {
     } else if (BOARD?.web?.devices?.serial) {
         Device = SerialPort;
     } else if (BOARD?.web?.devices?.usb) {
-        Device = USB;
+        if (['BBC micro:bit', 'Mithon CC'].includes(BOARD.boardType)) {
+            Device = USB;
+        } else {
+            Device = USBMini;
+        }
     }
 } else if (goog.platform() === 'android') {
     Device = USB;
@@ -33,7 +39,11 @@ if (goog.platform() === 'win32' && goog.fullPlatform() !== 'win10') {
     if (BOARD?.web?.devices?.serial) {
         Device = SerialPort;
     } else if (BOARD?.web?.devices?.usb) {
-        Device = USB;
+        if (['BBC micro:bit', 'Mithon CC'].includes(BOARD.boardType)) {
+            Device = USB;
+        } else {
+            Device = USBMini;
+        }
     } else if (BOARD?.web?.devices?.hid) {
         Device = HID;
     }
diff --git a/common/modules/mixly-modules/web/serialport.js b/common/modules/mixly-modules/web/serialport.js
index 0b571ebf..cd7f4b84 100644
--- a/common/modules/mixly-modules/web/serialport.js
+++ b/common/modules/mixly-modules/web/serialport.js
@@ -14,6 +14,7 @@ const {
 
 class WebSerialPort extends Serial {
     static {
+        this.type = 'serialport';
         this.portToNameRegistry = new Registry();
         this.nameToPortRegistry = new Registry();
 
diff --git a/common/modules/mixly-modules/web/usb-mini.js b/common/modules/mixly-modules/web/usb-mini.js
new file mode 100644
index 00000000..65635bca
--- /dev/null
+++ b/common/modules/mixly-modules/web/usb-mini.js
@@ -0,0 +1,292 @@
+goog.loadJs('web', () => {
+
+goog.require('Mixly.Serial');
+goog.require('Mixly.Registry');
+goog.require('Mixly.Web');
+goog.provide('Mixly.Web.USBMini');
+
+const {
+    Serial,
+    Registry,
+    Web
+} = Mixly;
+
+class USBMini extends Serial {
+    static {
+        this.type = 'usb';
+        this.portToNameRegistry = new Registry();
+        this.serialNumberToNameRegistry = new Registry();
+        this.nameToPortRegistry = new Registry();
+
+        this.getConfig = function () {
+            return Serial.getConfig();
+        }
+
+        this.getSelectedPortName = function () {
+            return Serial.getSelectedPortName();
+        }
+
+        this.getCurrentPortsName = function () {
+            return Serial.getCurrentPortsName();
+        }
+
+        this.refreshPorts = function () {
+            let portsName = [];
+            for (let name of this.nameToPortRegistry.keys()) {
+                portsName.push({ name });
+            }
+            Serial.renderSelectBox(portsName);
+        }
+
+        this.requestPort = async function () {
+            const device = await navigator.usb.requestDevice({
+                filters: []
+            });
+            this.addPort(device);
+            this.refreshPorts();
+        }
+
+        this.getPort = function (name) {
+            return this.nameToPortRegistry.getItem(name);
+        }
+
+        this.addPort = function (device) {
+            if (this.portToNameRegistry.hasKey(device)) {
+                return;
+            }
+            const { serialNumber } = device;
+            let name = this.serialNumberToNameRegistry.getItem(serialNumber);
+            if (!name) {
+                for (let i = 1; i <= 20; i++) {
+                    name = `usb${i}`;
+                    if (this.nameToPortRegistry.hasKey(name)) {
+                        continue;
+                    }
+                    break;
+                }
+                this.serialNumberToNameRegistry.register(serialNumber, name);
+            }
+            this.portToNameRegistry.register(device, name);
+            this.nameToPortRegistry.register(name, device);
+        }
+
+        this.removePort = function (device) {
+            if (!this.portToNameRegistry.hasKey(device)) {
+                return;
+            }
+            const name = this.portToNameRegistry.getItem(device);
+            if (!name) {
+                return;
+            }
+            this.portToNameRegistry.unregister(device);
+            this.nameToPortRegistry.unregister(name);
+        }
+
+        this.addEventsListener = function () {
+            navigator?.usb?.addEventListener('connect', (event) => {
+                this.addPort(event.device);
+                this.refreshPorts();
+            });
+
+            navigator?.usb?.addEventListener('disconnect', (event) => {
+                event.device.onclose && event.device.onclose();
+                this.removePort(event.device);
+                this.refreshPorts();
+            });
+        }
+
+        this.init = function () {
+            navigator?.usb?.getDevices().then((devices) => {
+                for (let device of devices) {
+                    this.addPort(device);
+                }
+            });
+            this.addEventsListener();
+        }
+    }
+
+    #device_ = null;
+    #keepReading_ = null;
+    #reader_ = null;
+    #serialPolling_ = false;
+    #stringTemp_ = '';
+    #defaultClass_ = 0xFF;
+    #defaultConfiguration_ = 1;
+    #endpointIn_ = null;
+    #endpointOut_ = null;
+    #interfaceNumber_ = 0;
+    constructor(port) {
+        super(port);
+    }
+
+    #addEventsListener_() {
+        this.#addReadEventListener_();
+    }
+
+    #addReadEventListener_() {
+        this.#reader_ = this.#startSerialRead_();
+
+        this.#device_.onclose = () => {
+            if (!this.isOpened()) {
+                return;
+            }
+            super.close();
+            this.#stringTemp_ = '';
+            this.onClose(1);
+        }
+    }
+
+    async #read_() {
+        let result;
+        if (this.#endpointIn_) {
+            result = await this.#device_.transferIn(this.#endpointIn_, 64);
+        } else {
+            result = await this.#device_.controlTransferIn({
+                requestType: 'class',
+                recipient: 'interface',
+                request: 0x01,
+                value: 0x100,
+                index: this.#interfaceNumber_
+            }, 64);
+        }
+        return result?.data;
+    }
+
+    async #write_(data) {
+        if (this.#endpointOut_) {
+            await this.#device_.transferOut(this.#endpointOut_, data);
+        } else {
+            await this.#device_.controlTransferOut({
+                requestType: 'class',
+                recipient: 'interface',
+                request: 0x09,
+                value: 0x200,
+                index: this.#interfaceNumber_
+            }, data);
+        }
+    }
+
+    async #startSerialRead_(serialDelay = 1) {
+        this.#serialPolling_ = true;
+        try {
+            while (this.#serialPolling_ ) {
+                const data = await this.#read_();
+                if (data !== undefined) {
+                    const numberArray = Array.prototype.slice.call(new Uint8Array(data.buffer));
+                    this.onBuffer(numberArray);
+                }
+                await new Promise(resolve => setTimeout(resolve, serialDelay));
+            }
+        } catch (_) {}
+    }
+
+    async open(baud) {
+        const portsName = Serial.getCurrentPortsName();
+        const currentPortName = this.getPortName();
+        if (!portsName.includes(currentPortName)) {
+            throw new Error('无可用串口');
+        }
+        if (this.isOpened()) {
+            return;
+        }
+        baud = baud ?? this.getBaudRate();
+        this.#device_ = USBMini.getPort(currentPortName);
+        await this.#device_.open();
+        await this.#device_.selectConfiguration(this.#defaultConfiguration_);
+        const interfaces = this.#device_.configuration.interfaces.filter(iface => {
+            return iface.alternates[0].interfaceClass === this.#defaultClass_;
+        });
+        let selectedInterface = interfaces.find(iface => iface.alternates[0].endpoints.length > 0);
+        if (!selectedInterface) {
+            selectedInterface = interfaces[0];
+        }
+        this.#interfaceNumber_ = selectedInterface.interfaceNumber;
+        const { endpoints } = selectedInterface.alternates[0];
+        for (const endpoint of endpoints) {
+            if (endpoint.direction === 'in') {
+                this.#endpointIn_ = endpoint.endpointNumber;
+            } else if (endpoint.direction === 'out') {
+                this.#endpointOut_ = endpoint.endpointNumber;
+            }
+        }
+        await this.#device_.claimInterface(this.#interfaceNumber_);
+        await this.setBaudRate(baud);
+        super.open(baud);
+        this.onOpen();
+        this.#addEventsListener_();
+    }
+
+    async close() {
+        if (!this.isOpened()) {
+            return;
+        }
+        this.#serialPolling_ = false;
+        super.close();
+        await this.#device_.close();
+        if (this.#reader_) {
+            await this.#reader_;
+        }
+        this.#device_ = null;
+        this.onClose(1);
+    }
+
+    async setBaudRate(baud) {
+        if (!this.isOpened() || this.getBaudRate() === baud) {
+            return;
+        }
+        await super.setBaudRate(baud);
+    }
+
+    async sendString(str) {
+        const buffer = this.encode(str);
+        return this.sendBuffer(buffer);
+    }
+
+    async sendBuffer(buffer) {
+        if (typeof buffer.unshift === 'function') {
+            // buffer.unshift(buffer.length);
+            buffer = new Uint8Array(buffer).buffer;
+        }
+        return this.#write_(buffer);
+    }
+
+    async setDTRAndRTS(dtr, rts) {
+        if (!this.isOpened()
+            || (this.getDTR() === dtr && this.getRTS() === rts)) {
+            return;
+        }
+        await super.setDTRAndRTS(dtr, rts);
+    }
+
+    async setDTR(dtr) {
+        return this.setDTRAndRTS(dtr, this.getRTS());
+    }
+
+    async setRTS(rts) {
+        return this.setDTRAndRTS(this.getDTR(), rts);
+    }
+
+    onBuffer(buffer) {
+        super.onBuffer(buffer);
+        for (let i = 0; i < buffer.length; i++) {
+            super.onByte(buffer[i]);
+        }
+        const string = this.decodeBuffer(buffer);
+        if (!string) {
+            return;
+        }
+        for (let char of string) {
+            super.onChar(char);
+            if (['\r', '\n'].includes(char)) {
+                super.onString(this.#stringTemp_);
+                this.#stringTemp_ = '';
+            } else {
+                this.#stringTemp_ += char;
+            }
+        }
+    }
+}
+
+Web.USBMini = USBMini;
+
+});
\ No newline at end of file
diff --git a/common/modules/mixly-modules/web/usb.js b/common/modules/mixly-modules/web/usb.js
index 04cc89d2..53f73f51 100644
--- a/common/modules/mixly-modules/web/usb.js
+++ b/common/modules/mixly-modules/web/usb.js
@@ -14,6 +14,7 @@ const {
 
 class USB extends Serial {
     static {
+        this.type = 'usb';
         this.portToNameRegistry = new Registry();
         this.serialNumberToNameRegistry = new Registry();
         this.nameToPortRegistry = new Registry();