diff --git a/main.js b/main.js
index 637d7c7..2b21e48 100644
--- a/main.js
+++ b/main.js
@@ -10,9 +10,20 @@
 const { app, BrowserWindow, ipcMain } = require('electron')
 const path = require('path')
 const fs = require('fs')
+const { WitMotionSensor } = require('./sensor')
 
 // 缓存文件路径（存储在应用用户数据目录下）
-const cacheFile = path.join(app.getPath('userData'), 'app-cache.json')
+const cacheDir = app.getPath('userData')
+const cacheFile = path.join(cacheDir, 'app-cache.json')
+
+// 确保缓存目录存在
+function ensureCacheDir() {
+  try {
+    if (!fs.existsSync(cacheDir)) {
+      fs.mkdirSync(cacheDir, { recursive: true })
+    }
+  } catch { /* 忽略 */ }
+}
 
 // 读取缓存文件
 function readCache() {
@@ -27,9 +38,14 @@ function readCache() {
 
 // 写入缓存文件
 function writeCache(data) {
-  fs.writeFileSync(cacheFile, JSON.stringify(data, null, 2), 'utf-8')
+  try {
+    ensureCacheDir()
+    fs.writeFileSync(cacheFile, JSON.stringify(data, null, 2), 'utf-8')
+  } catch { /* 忽略写入错误 */ }
 }
 
+let sensor = null
+
 const createWindow = () => {
   const win = new BrowserWindow({
     width: 800,
@@ -43,6 +59,23 @@ const createWindow = () => {
   })
 
   win.loadFile('./dist/index.html')
+
+  // 窗口创建后连接传感器
+  sensor = new WitMotionSensor({
+    onData: (data) => {
+      if (!win.isDestroyed()) {
+        win.webContents.send('sensor-data', data)
+      }
+    },
+    onLog: (level, msg) => {
+      console.log(`[sensor] ${msg}`)
+      // 也发送到渲染进程，方便静态页面查看日志
+      if (win && !win.isDestroyed()) {
+        try { win.webContents.send('sensor-log', { level, msg }) } catch {}
+      }
+    }
+  })
+  sensor.connect()
 }
 
 app.whenReady().then(() => {
@@ -61,4 +94,4 @@ app.whenReady().then(() => {
   })
 
   createWindow()
-})
\ No newline at end of file
+})
diff --git a/package-lock.json b/package-lock.json
index e3fb2d3..94ba018 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -8,6 +8,9 @@
       "name": "photovoltaic-pc",
       "version": "1.0.0",
       "license": "ISC",
+      "dependencies": {
+        "serialport": "^13.0.0"
+      },
       "devDependencies": {
         "electron": "^43.2.0"
       }
@@ -41,6 +44,227 @@
         "undici": "^7.24.4"
       }
     },
+    "node_modules/@serialport/binding-mock": {
+      "version": "10.2.2",
+      "resolved": "https://registry.npmjs.org/@serialport/binding-mock/-/binding-mock-10.2.2.tgz",
+      "integrity": "sha512-HAFzGhk9OuFMpuor7aT5G1ChPgn5qSsklTFOTUX72Rl6p0xwcSVsRtG/xaGp6bxpN7fI9D/S8THLBWbBgS6ldw==",
+      "dependencies": {
+        "@serialport/bindings-interface": "^1.2.1",
+        "debug": "^4.3.3"
+      },
+      "engines": {
+        "node": ">=12.0.0"
+      }
+    },
+    "node_modules/@serialport/bindings-cpp": {
+      "version": "13.0.0",
+      "resolved": "https://registry.npmjs.org/@serialport/bindings-cpp/-/bindings-cpp-13.0.0.tgz",
+      "integrity": "sha512-r25o4Bk/vaO1LyUfY/ulR6hCg/aWiN6Wo2ljVlb4Pj5bqWGcSRC4Vse4a9AcapuAu/FeBzHCbKMvRQeCuKjzIQ==",
+      "hasInstallScript": true,
+      "dependencies": {
+        "@serialport/bindings-interface": "1.2.2",
+        "@serialport/parser-readline": "12.0.0",
+        "debug": "4.4.0",
+        "node-addon-api": "8.3.0",
+        "node-gyp-build": "4.8.4"
+      },
+      "engines": {
+        "node": ">=18.0.0"
+      },
+      "funding": {
+        "url": "https://opencollective.com/serialport/donate"
+      }
+    },
+    "node_modules/@serialport/bindings-cpp/node_modules/@serialport/parser-delimiter": {
+      "version": "12.0.0",
+      "resolved": "https://registry.npmjs.org/@serialport/parser-delimiter/-/parser-delimiter-12.0.0.tgz",
+      "integrity": "sha512-gu26tVt5lQoybhorLTPsH2j2LnX3AOP2x/34+DUSTNaUTzu2fBXw+isVjQJpUBFWu6aeQRZw5bJol5X9Gxjblw==",
+      "engines": {
+        "node": ">=12.0.0"
+      },
+      "funding": {
+        "url": "https://opencollective.com/serialport/donate"
+      }
+    },
+    "node_modules/@serialport/bindings-cpp/node_modules/@serialport/parser-readline": {
+      "version": "12.0.0",
+      "resolved": "https://registry.npmjs.org/@serialport/parser-readline/-/parser-readline-12.0.0.tgz",
+      "integrity": "sha512-O7cywCWC8PiOMvo/gglEBfAkLjp/SENEML46BXDykfKP5mTPM46XMaX1L0waWU6DXJpBgjaL7+yX6VriVPbN4w==",
+      "dependencies": {
+        "@serialport/parser-delimiter": "12.0.0"
+      },
+      "engines": {
+        "node": ">=12.0.0"
+      },
+      "funding": {
+        "url": "https://opencollective.com/serialport/donate"
+      }
+    },
+    "node_modules/@serialport/bindings-cpp/node_modules/debug": {
+      "version": "4.4.0",
+      "resolved": "https://registry.npmjs.org/debug/-/debug-4.4.0.tgz",
+      "integrity": "sha512-6WTZ/IxCY/T6BALoZHaE4ctp9xm+Z5kY/pzYaCHRFeyVhojxlrm+46y68HA6hr0TcwEssoxNiDEUJQjfPZ/RYA==",
+      "dependencies": {
+        "ms": "^2.1.3"
+      },
+      "engines": {
+        "node": ">=6.0"
+      },
+      "peerDependenciesMeta": {
+        "supports-color": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/@serialport/bindings-interface": {
+      "version": "1.2.2",
+      "resolved": "https://registry.npmjs.org/@serialport/bindings-interface/-/bindings-interface-1.2.2.tgz",
+      "integrity": "sha512-CJaUd5bLvtM9c5dmO9rPBHPXTa9R2UwpkJ0wdh9JCYcbrPWsKz+ErvR0hBLeo7NPeiFdjFO4sonRljiw4d2XiA==",
+      "engines": {
+        "node": "^12.22 || ^14.13 || >=16"
+      }
+    },
+    "node_modules/@serialport/parser-byte-length": {
+      "version": "13.0.0",
+      "resolved": "https://registry.npmjs.org/@serialport/parser-byte-length/-/parser-byte-length-13.0.0.tgz",
+      "integrity": "sha512-32yvqeTAqJzAEtX5zCrN1Mej56GJ5h/cVFsCDPbF9S1ZSC9FWjOqNAgtByseHfFTSTs/4ZBQZZcZBpolt8sUng==",
+      "engines": {
+        "node": ">=20.0.0"
+      },
+      "funding": {
+        "url": "https://opencollective.com/serialport/donate"
+      }
+    },
+    "node_modules/@serialport/parser-cctalk": {
+      "version": "13.0.0",
+      "resolved": "https://registry.npmjs.org/@serialport/parser-cctalk/-/parser-cctalk-13.0.0.tgz",
+      "integrity": "sha512-RErAe57g9gvnlieVYGIn1xymb1bzNXb2QtUQd14FpmbQQYlcrmuRnJwKa1BgTCujoCkhtaTtgHlbBWOxm8U2uA==",
+      "engines": {
+        "node": ">=20.0.0"
+      },
+      "funding": {
+        "url": "https://opencollective.com/serialport/donate"
+      }
+    },
+    "node_modules/@serialport/parser-delimiter": {
+      "version": "13.0.0",
+      "resolved": "https://registry.npmjs.org/@serialport/parser-delimiter/-/parser-delimiter-13.0.0.tgz",
+      "integrity": "sha512-Qqyb0FX1avs3XabQqNaZSivyVbl/yl0jywImp7ePvfZKLwx7jBZjvL+Hawt9wIG6tfq6zbFM24vzCCK7REMUig==",
+      "engines": {
+        "node": ">=20.0.0"
+      },
+      "funding": {
+        "url": "https://opencollective.com/serialport/donate"
+      }
+    },
+    "node_modules/@serialport/parser-inter-byte-timeout": {
+      "version": "13.0.0",
+      "resolved": "https://registry.npmjs.org/@serialport/parser-inter-byte-timeout/-/parser-inter-byte-timeout-13.0.0.tgz",
+      "integrity": "sha512-a0w0WecTW7bD2YHWrpTz1uyiWA2fDNym0kjmPeNSwZ2XCP+JbirZt31l43m2ey6qXItTYVuQBthm75sPVeHnGA==",
+      "engines": {
+        "node": ">=20.0.0"
+      },
+      "funding": {
+        "url": "https://opencollective.com/serialport/donate"
+      }
+    },
+    "node_modules/@serialport/parser-packet-length": {
+      "version": "13.0.0",
+      "resolved": "https://registry.npmjs.org/@serialport/parser-packet-length/-/parser-packet-length-13.0.0.tgz",
+      "integrity": "sha512-60ZDDIqYRi0Xs2SPZUo4Jr5LLIjtb+rvzPKMJCohrO6tAqSDponcNpcB1O4W21mKTxYjqInSz+eMrtk0LLfZIg==",
+      "engines": {
+        "node": ">=8.6.0"
+      }
+    },
+    "node_modules/@serialport/parser-readline": {
+      "version": "13.0.0",
+      "resolved": "https://registry.npmjs.org/@serialport/parser-readline/-/parser-readline-13.0.0.tgz",
+      "integrity": "sha512-dov3zYoyf0dt1Sudd1q42VVYQ4WlliF0MYvAMA3MOyiU1IeG4hl0J6buBA2w4gl3DOCC05tGgLDN/3yIL81gsA==",
+      "dependencies": {
+        "@serialport/parser-delimiter": "13.0.0"
+      },
+      "engines": {
+        "node": ">=20.0.0"
+      },
+      "funding": {
+        "url": "https://opencollective.com/serialport/donate"
+      }
+    },
+    "node_modules/@serialport/parser-ready": {
+      "version": "13.0.0",
+      "resolved": "https://registry.npmjs.org/@serialport/parser-ready/-/parser-ready-13.0.0.tgz",
+      "integrity": "sha512-JNUQA+y2Rfs4bU+cGYNqOPnNMAcayhhW+XJZihSLQXOHcZsFnOa2F9YtMg9VXRWIcnHldHYtisp62Etjlw24bw==",
+      "engines": {
+        "node": ">=20.0.0"
+      },
+      "funding": {
+        "url": "https://opencollective.com/serialport/donate"
+      }
+    },
+    "node_modules/@serialport/parser-regex": {
+      "version": "13.0.0",
+      "resolved": "https://registry.npmjs.org/@serialport/parser-regex/-/parser-regex-13.0.0.tgz",
+      "integrity": "sha512-m7HpIf56G5XcuDdA3DB34Z0pJiwxNRakThEHjSa4mG05OnWYv0IG8l2oUyYfuGMowQWaVnQ+8r+brlPxGVH+eA==",
+      "engines": {
+        "node": ">=20.0.0"
+      },
+      "funding": {
+        "url": "https://opencollective.com/serialport/donate"
+      }
+    },
+    "node_modules/@serialport/parser-slip-encoder": {
+      "version": "13.0.0",
+      "resolved": "https://registry.npmjs.org/@serialport/parser-slip-encoder/-/parser-slip-encoder-13.0.0.tgz",
+      "integrity": "sha512-fUHZEExm6izJ7rg0A1yjXwu4sOzeBkPAjDZPfb+XQoqgtKAk+s+HfICiYn7N2QU9gyaeCO8VKgWwi+b/DowYOg==",
+      "engines": {
+        "node": ">=20.0.0"
+      },
+      "funding": {
+        "url": "https://opencollective.com/serialport/donate"
+      }
+    },
+    "node_modules/@serialport/parser-spacepacket": {
+      "version": "13.0.0",
+      "resolved": "https://registry.npmjs.org/@serialport/parser-spacepacket/-/parser-spacepacket-13.0.0.tgz",
+      "integrity": "sha512-DoXJ3mFYmyD8X/8931agJvrBPxqTaYDsPoly9/cwQSeh/q4EjQND9ySXBxpWz5WcpyCU4jOuusqCSAPsbB30Eg==",
+      "engines": {
+        "node": ">=20.0.0"
+      },
+      "funding": {
+        "url": "https://opencollective.com/serialport/donate"
+      }
+    },
+    "node_modules/@serialport/stream": {
+      "version": "13.0.0",
+      "resolved": "https://registry.npmjs.org/@serialport/stream/-/stream-13.0.0.tgz",
+      "integrity": "sha512-F7xLJKsjGo2WuEWMSEO1SimRcOA+WtWICsY13r0ahx8s2SecPQH06338g28OT7cW7uRXI7oEQAk62qh5gHJW3g==",
+      "dependencies": {
+        "@serialport/bindings-interface": "1.2.2",
+        "debug": "4.4.0"
+      },
+      "engines": {
+        "node": ">=20.0.0"
+      },
+      "funding": {
+        "url": "https://opencollective.com/serialport/donate"
+      }
+    },
+    "node_modules/@serialport/stream/node_modules/debug": {
+      "version": "4.4.0",
+      "resolved": "https://registry.npmjs.org/debug/-/debug-4.4.0.tgz",
+      "integrity": "sha512-6WTZ/IxCY/T6BALoZHaE4ctp9xm+Z5kY/pzYaCHRFeyVhojxlrm+46y68HA6hr0TcwEssoxNiDEUJQjfPZ/RYA==",
+      "dependencies": {
+        "ms": "^2.1.3"
+      },
+      "engines": {
+        "node": ">=6.0"
+      },
+      "peerDependenciesMeta": {
+        "supports-color": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/@types/node": {
       "version": "24.13.3",
       "resolved": "https://registry.npmjs.org/@types/node/-/node-24.13.3.tgz",
@@ -54,7 +278,6 @@
       "version": "4.4.3",
       "resolved": "https://registry.npmjs.org/debug/-/debug-4.4.3.tgz",
       "integrity": "sha512-RGwwWnwQvkVfavKVt22FGLw+xYSdzARwm0ru6DhTVA3umU5hZc28V3kO4stgYryrTlLpuvgI9GiijltAjNbcqA==",
-      "dev": true,
       "dependencies": {
         "ms": "^2.1.3"
       },
@@ -107,8 +330,25 @@
     "node_modules/ms": {
       "version": "2.1.3",
       "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.3.tgz",
-      "integrity": "sha512-6FlzubTLZG3J2a/NVCAleEhjzq5oxgHyaCU9yYXvcLsvoVaHJq/s5xXI6/XXP6tz7R9xAOtHnSO/tXtF3WRTlA==",
-      "dev": true
+      "integrity": "sha512-6FlzubTLZG3J2a/NVCAleEhjzq5oxgHyaCU9yYXvcLsvoVaHJq/s5xXI6/XXP6tz7R9xAOtHnSO/tXtF3WRTlA=="
+    },
+    "node_modules/node-addon-api": {
+      "version": "8.3.0",
+      "resolved": "https://registry.npmjs.org/node-addon-api/-/node-addon-api-8.3.0.tgz",
+      "integrity": "sha512-8VOpLHFrOQlAH+qA0ZzuGRlALRA6/LVh8QJldbrC4DY0hXoMP0l4Acq8TzFC018HztWiRqyCEj2aTWY2UvnJUg==",
+      "engines": {
+        "node": "^18 || ^20 || >= 21"
+      }
+    },
+    "node_modules/node-gyp-build": {
+      "version": "4.8.4",
+      "resolved": "https://registry.npmjs.org/node-gyp-build/-/node-gyp-build-4.8.4.tgz",
+      "integrity": "sha512-LA4ZjwlnUblHVgq0oBF3Jl/6h/Nvs5fzBLwdEF4nuxnFdsfajde4WfxtJr3CaiH+F6ewcIB/q4jQ4UzPyid+CQ==",
+      "bin": {
+        "node-gyp-build": "bin.js",
+        "node-gyp-build-optional": "optional.js",
+        "node-gyp-build-test": "build-test.js"
+      }
     },
     "node_modules/progress": {
       "version": "2.0.3",
@@ -131,6 +371,49 @@
         "node": ">=10"
       }
     },
+    "node_modules/serialport": {
+      "version": "13.0.0",
+      "resolved": "https://registry.npmjs.org/serialport/-/serialport-13.0.0.tgz",
+      "integrity": "sha512-PHpnTd8isMGPfFTZNCzOZp9m4mAJSNWle9Jxu6BPTcWq7YXl5qN7tp8Sgn0h+WIGcD6JFz5QDgixC2s4VW7vzg==",
+      "dependencies": {
+        "@serialport/binding-mock": "10.2.2",
+        "@serialport/bindings-cpp": "13.0.0",
+        "@serialport/parser-byte-length": "13.0.0",
+        "@serialport/parser-cctalk": "13.0.0",
+        "@serialport/parser-delimiter": "13.0.0",
+        "@serialport/parser-inter-byte-timeout": "13.0.0",
+        "@serialport/parser-packet-length": "13.0.0",
+        "@serialport/parser-readline": "13.0.0",
+        "@serialport/parser-ready": "13.0.0",
+        "@serialport/parser-regex": "13.0.0",
+        "@serialport/parser-slip-encoder": "13.0.0",
+        "@serialport/parser-spacepacket": "13.0.0",
+        "@serialport/stream": "13.0.0",
+        "debug": "4.4.0"
+      },
+      "engines": {
+        "node": ">=20.0.0"
+      },
+      "funding": {
+        "url": "https://opencollective.com/serialport/donate"
+      }
+    },
+    "node_modules/serialport/node_modules/debug": {
+      "version": "4.4.0",
+      "resolved": "https://registry.npmjs.org/debug/-/debug-4.4.0.tgz",
+      "integrity": "sha512-6WTZ/IxCY/T6BALoZHaE4ctp9xm+Z5kY/pzYaCHRFeyVhojxlrm+46y68HA6hr0TcwEssoxNiDEUJQjfPZ/RYA==",
+      "dependencies": {
+        "ms": "^2.1.3"
+      },
+      "engines": {
+        "node": ">=6.0"
+      },
+      "peerDependenciesMeta": {
+        "supports-color": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/sumchecker": {
       "version": "3.0.1",
       "resolved": "https://registry.npmjs.org/sumchecker/-/sumchecker-3.0.1.tgz",
@@ -182,6 +465,127 @@
         "undici": "^7.24.4"
       }
     },
+    "@serialport/binding-mock": {
+      "version": "10.2.2",
+      "resolved": "https://registry.npmjs.org/@serialport/binding-mock/-/binding-mock-10.2.2.tgz",
+      "integrity": "sha512-HAFzGhk9OuFMpuor7aT5G1ChPgn5qSsklTFOTUX72Rl6p0xwcSVsRtG/xaGp6bxpN7fI9D/S8THLBWbBgS6ldw==",
+      "requires": {
+        "@serialport/bindings-interface": "^1.2.1",
+        "debug": "^4.3.3"
+      }
+    },
+    "@serialport/bindings-cpp": {
+      "version": "13.0.0",
+      "resolved": "https://registry.npmjs.org/@serialport/bindings-cpp/-/bindings-cpp-13.0.0.tgz",
+      "integrity": "sha512-r25o4Bk/vaO1LyUfY/ulR6hCg/aWiN6Wo2ljVlb4Pj5bqWGcSRC4Vse4a9AcapuAu/FeBzHCbKMvRQeCuKjzIQ==",
+      "requires": {
+        "@serialport/bindings-interface": "1.2.2",
+        "@serialport/parser-readline": "12.0.0",
+        "debug": "4.4.0",
+        "node-addon-api": "8.3.0",
+        "node-gyp-build": "4.8.4"
+      },
+      "dependencies": {
+        "@serialport/parser-delimiter": {
+          "version": "12.0.0",
+          "resolved": "https://registry.npmjs.org/@serialport/parser-delimiter/-/parser-delimiter-12.0.0.tgz",
+          "integrity": "sha512-gu26tVt5lQoybhorLTPsH2j2LnX3AOP2x/34+DUSTNaUTzu2fBXw+isVjQJpUBFWu6aeQRZw5bJol5X9Gxjblw=="
+        },
+        "@serialport/parser-readline": {
+          "version": "12.0.0",
+          "resolved": "https://registry.npmjs.org/@serialport/parser-readline/-/parser-readline-12.0.0.tgz",
+          "integrity": "sha512-O7cywCWC8PiOMvo/gglEBfAkLjp/SENEML46BXDykfKP5mTPM46XMaX1L0waWU6DXJpBgjaL7+yX6VriVPbN4w==",
+          "requires": {
+            "@serialport/parser-delimiter": "12.0.0"
+          }
+        },
+        "debug": {
+          "version": "4.4.0",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-4.4.0.tgz",
+          "integrity": "sha512-6WTZ/IxCY/T6BALoZHaE4ctp9xm+Z5kY/pzYaCHRFeyVhojxlrm+46y68HA6hr0TcwEssoxNiDEUJQjfPZ/RYA==",
+          "requires": {
+            "ms": "^2.1.3"
+          }
+        }
+      }
+    },
+    "@serialport/bindings-interface": {
+      "version": "1.2.2",
+      "resolved": "https://registry.npmjs.org/@serialport/bindings-interface/-/bindings-interface-1.2.2.tgz",
+      "integrity": "sha512-CJaUd5bLvtM9c5dmO9rPBHPXTa9R2UwpkJ0wdh9JCYcbrPWsKz+ErvR0hBLeo7NPeiFdjFO4sonRljiw4d2XiA=="
+    },
+    "@serialport/parser-byte-length": {
+      "version": "13.0.0",
+      "resolved": "https://registry.npmjs.org/@serialport/parser-byte-length/-/parser-byte-length-13.0.0.tgz",
+      "integrity": "sha512-32yvqeTAqJzAEtX5zCrN1Mej56GJ5h/cVFsCDPbF9S1ZSC9FWjOqNAgtByseHfFTSTs/4ZBQZZcZBpolt8sUng=="
+    },
+    "@serialport/parser-cctalk": {
+      "version": "13.0.0",
+      "resolved": "https://registry.npmjs.org/@serialport/parser-cctalk/-/parser-cctalk-13.0.0.tgz",
+      "integrity": "sha512-RErAe57g9gvnlieVYGIn1xymb1bzNXb2QtUQd14FpmbQQYlcrmuRnJwKa1BgTCujoCkhtaTtgHlbBWOxm8U2uA=="
+    },
+    "@serialport/parser-delimiter": {
+      "version": "13.0.0",
+      "resolved": "https://registry.npmjs.org/@serialport/parser-delimiter/-/parser-delimiter-13.0.0.tgz",
+      "integrity": "sha512-Qqyb0FX1avs3XabQqNaZSivyVbl/yl0jywImp7ePvfZKLwx7jBZjvL+Hawt9wIG6tfq6zbFM24vzCCK7REMUig=="
+    },
+    "@serialport/parser-inter-byte-timeout": {
+      "version": "13.0.0",
+      "resolved": "https://registry.npmjs.org/@serialport/parser-inter-byte-timeout/-/parser-inter-byte-timeout-13.0.0.tgz",
+      "integrity": "sha512-a0w0WecTW7bD2YHWrpTz1uyiWA2fDNym0kjmPeNSwZ2XCP+JbirZt31l43m2ey6qXItTYVuQBthm75sPVeHnGA=="
+    },
+    "@serialport/parser-packet-length": {
+      "version": "13.0.0",
+      "resolved": "https://registry.npmjs.org/@serialport/parser-packet-length/-/parser-packet-length-13.0.0.tgz",
+      "integrity": "sha512-60ZDDIqYRi0Xs2SPZUo4Jr5LLIjtb+rvzPKMJCohrO6tAqSDponcNpcB1O4W21mKTxYjqInSz+eMrtk0LLfZIg=="
+    },
+    "@serialport/parser-readline": {
+      "version": "13.0.0",
+      "resolved": "https://registry.npmjs.org/@serialport/parser-readline/-/parser-readline-13.0.0.tgz",
+      "integrity": "sha512-dov3zYoyf0dt1Sudd1q42VVYQ4WlliF0MYvAMA3MOyiU1IeG4hl0J6buBA2w4gl3DOCC05tGgLDN/3yIL81gsA==",
+      "requires": {
+        "@serialport/parser-delimiter": "13.0.0"
+      }
+    },
+    "@serialport/parser-ready": {
+      "version": "13.0.0",
+      "resolved": "https://registry.npmjs.org/@serialport/parser-ready/-/parser-ready-13.0.0.tgz",
+      "integrity": "sha512-JNUQA+y2Rfs4bU+cGYNqOPnNMAcayhhW+XJZihSLQXOHcZsFnOa2F9YtMg9VXRWIcnHldHYtisp62Etjlw24bw=="
+    },
+    "@serialport/parser-regex": {
+      "version": "13.0.0",
+      "resolved": "https://registry.npmjs.org/@serialport/parser-regex/-/parser-regex-13.0.0.tgz",
+      "integrity": "sha512-m7HpIf56G5XcuDdA3DB34Z0pJiwxNRakThEHjSa4mG05OnWYv0IG8l2oUyYfuGMowQWaVnQ+8r+brlPxGVH+eA=="
+    },
+    "@serialport/parser-slip-encoder": {
+      "version": "13.0.0",
+      "resolved": "https://registry.npmjs.org/@serialport/parser-slip-encoder/-/parser-slip-encoder-13.0.0.tgz",
+      "integrity": "sha512-fUHZEExm6izJ7rg0A1yjXwu4sOzeBkPAjDZPfb+XQoqgtKAk+s+HfICiYn7N2QU9gyaeCO8VKgWwi+b/DowYOg=="
+    },
+    "@serialport/parser-spacepacket": {
+      "version": "13.0.0",
+      "resolved": "https://registry.npmjs.org/@serialport/parser-spacepacket/-/parser-spacepacket-13.0.0.tgz",
+      "integrity": "sha512-DoXJ3mFYmyD8X/8931agJvrBPxqTaYDsPoly9/cwQSeh/q4EjQND9ySXBxpWz5WcpyCU4jOuusqCSAPsbB30Eg=="
+    },
+    "@serialport/stream": {
+      "version": "13.0.0",
+      "resolved": "https://registry.npmjs.org/@serialport/stream/-/stream-13.0.0.tgz",
+      "integrity": "sha512-F7xLJKsjGo2WuEWMSEO1SimRcOA+WtWICsY13r0ahx8s2SecPQH06338g28OT7cW7uRXI7oEQAk62qh5gHJW3g==",
+      "requires": {
+        "@serialport/bindings-interface": "1.2.2",
+        "debug": "4.4.0"
+      },
+      "dependencies": {
+        "debug": {
+          "version": "4.4.0",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-4.4.0.tgz",
+          "integrity": "sha512-6WTZ/IxCY/T6BALoZHaE4ctp9xm+Z5kY/pzYaCHRFeyVhojxlrm+46y68HA6hr0TcwEssoxNiDEUJQjfPZ/RYA==",
+          "requires": {
+            "ms": "^2.1.3"
+          }
+        }
+      }
+    },
     "@types/node": {
       "version": "24.13.3",
       "resolved": "https://registry.npmjs.org/@types/node/-/node-24.13.3.tgz",
@@ -195,7 +599,6 @@
       "version": "4.4.3",
       "resolved": "https://registry.npmjs.org/debug/-/debug-4.4.3.tgz",
       "integrity": "sha512-RGwwWnwQvkVfavKVt22FGLw+xYSdzARwm0ru6DhTVA3umU5hZc28V3kO4stgYryrTlLpuvgI9GiijltAjNbcqA==",
-      "dev": true,
       "requires": {
         "ms": "^2.1.3"
       }
@@ -226,8 +629,17 @@
     "ms": {
       "version": "2.1.3",
       "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.3.tgz",
-      "integrity": "sha512-6FlzubTLZG3J2a/NVCAleEhjzq5oxgHyaCU9yYXvcLsvoVaHJq/s5xXI6/XXP6tz7R9xAOtHnSO/tXtF3WRTlA==",
-      "dev": true
+      "integrity": "sha512-6FlzubTLZG3J2a/NVCAleEhjzq5oxgHyaCU9yYXvcLsvoVaHJq/s5xXI6/XXP6tz7R9xAOtHnSO/tXtF3WRTlA=="
+    },
+    "node-addon-api": {
+      "version": "8.3.0",
+      "resolved": "https://registry.npmjs.org/node-addon-api/-/node-addon-api-8.3.0.tgz",
+      "integrity": "sha512-8VOpLHFrOQlAH+qA0ZzuGRlALRA6/LVh8QJldbrC4DY0hXoMP0l4Acq8TzFC018HztWiRqyCEj2aTWY2UvnJUg=="
+    },
+    "node-gyp-build": {
+      "version": "4.8.4",
+      "resolved": "https://registry.npmjs.org/node-gyp-build/-/node-gyp-build-4.8.4.tgz",
+      "integrity": "sha512-LA4ZjwlnUblHVgq0oBF3Jl/6h/Nvs5fzBLwdEF4nuxnFdsfajde4WfxtJr3CaiH+F6ewcIB/q4jQ4UzPyid+CQ=="
     },
     "progress": {
       "version": "2.0.3",
@@ -241,6 +653,37 @@
       "integrity": "sha512-Y7/KDsb8LjooZpwaqGyulO6DQlksgCncchHGk+sZIY4SBvUocMBEFH5Ur1fI4dV+Jvl0w6cjvucaIi40puRioA==",
       "dev": true
     },
+    "serialport": {
+      "version": "13.0.0",
+      "resolved": "https://registry.npmjs.org/serialport/-/serialport-13.0.0.tgz",
+      "integrity": "sha512-PHpnTd8isMGPfFTZNCzOZp9m4mAJSNWle9Jxu6BPTcWq7YXl5qN7tp8Sgn0h+WIGcD6JFz5QDgixC2s4VW7vzg==",
+      "requires": {
+        "@serialport/binding-mock": "10.2.2",
+        "@serialport/bindings-cpp": "13.0.0",
+        "@serialport/parser-byte-length": "13.0.0",
+        "@serialport/parser-cctalk": "13.0.0",
+        "@serialport/parser-delimiter": "13.0.0",
+        "@serialport/parser-inter-byte-timeout": "13.0.0",
+        "@serialport/parser-packet-length": "13.0.0",
+        "@serialport/parser-readline": "13.0.0",
+        "@serialport/parser-ready": "13.0.0",
+        "@serialport/parser-regex": "13.0.0",
+        "@serialport/parser-slip-encoder": "13.0.0",
+        "@serialport/parser-spacepacket": "13.0.0",
+        "@serialport/stream": "13.0.0",
+        "debug": "4.4.0"
+      },
+      "dependencies": {
+        "debug": {
+          "version": "4.4.0",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-4.4.0.tgz",
+          "integrity": "sha512-6WTZ/IxCY/T6BALoZHaE4ctp9xm+Z5kY/pzYaCHRFeyVhojxlrm+46y68HA6hr0TcwEssoxNiDEUJQjfPZ/RYA==",
+          "requires": {
+            "ms": "^2.1.3"
+          }
+        }
+      }
+    },
     "sumchecker": {
       "version": "3.0.1",
       "resolved": "https://registry.npmjs.org/sumchecker/-/sumchecker-3.0.1.tgz",
diff --git a/package.json b/package.json
index ae850da..56db820 100644
--- a/package.json
+++ b/package.json
@@ -12,5 +12,8 @@
   "license": "ISC",
   "devDependencies": {
     "electron": "^43.2.0"
+  },
+  "dependencies": {
+    "serialport": "^13.0.0"
   }
 }
diff --git a/preload.js b/preload.js
index e24cc4f..97d7ba7 100644
--- a/preload.js
+++ b/preload.js
@@ -56,12 +56,29 @@ const networkUtil = {
 
 /**
  * 应用传感器对象
+ * 静态页面设置 appSensor.onValueCallback = function(obj) { ... }
+ * obj 包含: { method, sensor, value }
  */
+const sensorCallbacks = { onValueCallback: null }
+
 const appSensor = {
   version: '1.0.0',
-  name: 'appSensor'
+  name: 'appSensor',
+  get onValueCallback() {
+    return sensorCallbacks.onValueCallback
+  },
+  set onValueCallback(fn) {
+    sensorCallbacks.onValueCallback = fn
+  }
 }
 
+// 监听主进程发送的传感器数据
+ipcRenderer.on('sensor-data', (_event, data) => {
+  if (sensorCallbacks.onValueCallback) {
+    sensorCallbacks.onValueCallback(data)
+  }
+})
+
 /**
  * 应用缓存对象（数据持久化到本地文件）
  */
diff --git a/sensor.js b/sensor.js
new file mode 100644
index 0000000..1107e41
--- /dev/null
+++ b/sensor.js
@@ -0,0 +1,393 @@
+/**
+ * 姿态传感器通信模块 (Modbus RTU)
+ * 协议文档: https://wit-motion.yuque.com/wumwnr/ltst03/oex3ay
+ * 产品: HWT6053-485 (高精度Modbus协议)
+ * 数据格式: 8N1, 从站地址默认 0x50
+ * 指令必须在 10S 内完成，否则自动上锁，需先解锁
+ */
+const { SerialPort } = require('serialport')
+
+// ======================== CRC-16 Modbus ========================
+const crc16Table = new Uint16Array(256)
+for (let i = 0; i < 256; i++) {
+  let crc = i
+  for (let j = 0; j < 8; j++) {
+    crc = (crc & 1) ? (0xA001 ^ (crc >> 1)) : (crc >> 1)
+  }
+  crc16Table[i] = crc
+}
+
+/**
+ * CRC-16 Modbus 计算
+ * @param {Buffer} data
+ * @returns {Buffer} [CRCH, CRCL] — 高字节在前（文档要求 CRCH 在前）
+ */
+function crc16Modbus(data) {
+  let crc = 0xFFFF
+  for (const b of data) {
+    crc = crc16Table[(crc ^ b) & 0xFF] ^ (crc >> 8)
+  }
+  return Buffer.from([(crc >> 8) & 0xFF, crc & 0xFF]) // [CRCH, CRCL]
+}
+
+// ======================== 常量 ========================
+const DEV_ADDR = 0x50  // 从站地址（默认）
+
+// ======================== Modbus 命令构建 ========================
+
+/** 解锁指令 (写寄存器 0x69, 值 0xB588) */
+function buildUnlockCmd() {
+  const buf = Buffer.from([DEV_ADDR, 0x06, 0x00, 0x69, 0xB5, 0x88])
+  return Buffer.concat([buf, crc16Modbus(buf)])
+}
+
+/** 保存指令 (写寄存器 0x00, 值 0x0000) */
+function buildSaveCmd() {
+  const buf = Buffer.from([DEV_ADDR, 0x06, 0x00, 0x00, 0x00, 0x00])
+  return Buffer.concat([buf, crc16Modbus(buf)])
+}
+
+/**
+ * Modbus 读保持寄存器命令 (功能码 0x03)
+ * @param {number} startAddr - 起始寄存器地址
+ * @param {number} count - 读取寄存器数量
+ */
+function buildReadRegistersCmd(startAddr, count) {
+  const buf = Buffer.from([DEV_ADDR, 0x03, (startAddr >> 8) & 0xFF, startAddr & 0xFF, (count >> 8) & 0xFF, count & 0xFF])
+  return Buffer.concat([buf, crc16Modbus(buf)])
+}
+
+// ======================== Modbus 响应解析 ========================
+
+/**
+ * 解析 Modbus 读寄存器响应
+ * 响应格式: 地址(1B) | 功能码(1B) | 字节数(1B) | 数据(NB) | CRC16(2B)
+ * 返回原始 16-bit 寄存器值数组
+ */
+function parseModbusResponse(buf) {
+  if (buf.length < 5) return null
+
+  // 校验地址和功能码
+  if (buf[0] !== DEV_ADDR || buf[1] !== 0x03) return null
+
+  // CRC 校验
+  const crcRcv = buf.slice(buf.length - 2)
+  const crcCal = crc16Modbus(buf.slice(0, buf.length - 2))
+  if (crcRcv[0] !== crcCal[0] || crcRcv[1] !== crcCal[1]) {
+    console.log('[sensor] CRC校验失败: 收到=' + crcRcv.toString('hex').toUpperCase() + ' 计算=' + crcCal.toString('hex').toUpperCase())
+    return null
+  }
+
+  const byteCount = buf[2]
+  if (buf.length !== 5 + byteCount) {
+    console.log('[sensor] 长度不匹配: 期望=' + (5 + byteCount) + ' 收到=' + buf.length)
+    return null
+  }
+
+  const data = []
+  for (let i = 0; i < byteCount; i += 2) {
+    data.push((buf[3 + i] << 8) | buf[3 + i + 1])
+  }
+  return data
+}
+
+/**
+ * 将 16-bit 有符号值转为 int16
+ */
+function toInt16(val) {
+  return val >= 0x8000 ? val - 0x10000 : val
+}
+
+/**
+ * 将 32-bit 值（高位+低位组合）转为有符号 int32
+ */
+function toInt32(hi, lo) {
+  let val = (hi << 16) | (lo & 0xFFFF)
+  return val >= 0x80000000 ? val - 0x100000000 : val
+}
+
+// ======================== 传感器类 ========================
+class WitMotionSensor {
+  /**
+   * @param {Object} options
+   * @param {Function} options.onData - 回调函数，接收 { method, sensor, value }
+   * @param {Function} options.onLog - 日志回调 (level, msg)
+   */
+  constructor(options = {}) {
+    this.onData = options.onData || (() => {})
+    this.onLog = options.onLog || ((level, msg) => console.log(`[sensor] ${msg}`))
+    this.port = null
+    this.timer = null
+    this.connected = false
+
+    // Modbus 响应缓冲
+    this._modbusBuf = Buffer.alloc(0)
+
+    // 设备类型
+    this.sensorName = 'HWT6053'
+  }
+
+  /** 日志辅助 */
+  _log(msg) { this.onLog('info', msg) }
+  _warn(msg) { this.onLog('warn', msg) }
+  _error(msg) { this.onLog('error', msg) }
+
+  /** 扫描并连接传感器 */
+  async connect() {
+    try {
+      this._log('开始扫描串口设备...')
+      const ports = await SerialPort.list()
+      this._log(`检测到 ${ports.length} 个串口:`)
+      for (const p of ports) {
+        this._log(`  ${p.path} VID=${p.vendorId || 'N/A'} PID=${p.productId || 'N/A'} 制造商=${p.manufacturer || 'N/A'}`)
+      }
+
+      // 优先找 CH340 / CP210x / FTDI 芯片的串口
+      let sensorPort = ports.find(p =>
+        p.vendorId && ['1a86', '10c4', '0403'].includes(p.vendorId.toLowerCase())
+      )
+      if (!sensorPort) {
+        sensorPort = ports.find(p => p.path && /^COM\d+$/i.test(p.path))
+      }
+      if (!sensorPort) {
+        this._error('未找到串口设备')
+        return false
+      }
+
+      this._log(`选定串口: ${sensorPort.path}`)
+
+      // 按优先级尝试波特率
+      const baudRates = [9600, 115200]  // 默认 9600，试试 115200
+      for (const baud of baudRates) {
+        const ok = await this._tryOpen(sensorPort.path, baud)
+        if (ok) return true
+      }
+
+      this._error('所有波特率均失败，请检查串口连接')
+      return false
+    } catch (err) {
+      this._error('扫描失败: ' + err.message)
+      return false
+    }
+  }
+
+  /** 尝试以指定波特率打开串口 */
+  _tryOpen(path, baudRate) {
+    return new Promise((resolve) => {
+      this._log(`尝试 ${path} @ ${baudRate}...`)
+
+      const port = new SerialPort({
+        path,
+        baudRate,
+        dataBits: 8,
+        parity: 'none',
+        stopBits: 1,
+        autoOpen: false,
+        dtr: false,
+        rts: false
+      })
+
+      port.open((err) => {
+        if (err) {
+          this._warn(`${path} @ ${baudRate} 打开失败: ${err.message}`)
+          resolve(false)
+          return
+        }
+
+        this._log(`=== 已连接: ${path} @ ${baudRate} ===`)
+        this.port = port
+        this.connected = true
+        this._modbusBuf = Buffer.alloc(0)
+        this._setupListeners()
+
+        // 连接后先解锁并查询数据
+        this._initialSetup()
+
+        resolve(true)
+      })
+    })
+  }
+
+  /** 初始配置：解锁 + 延时后验证 + 启动轮询 */
+  _initialSetup() {
+    if (!this.port) return
+
+    // 1) 解锁
+    this._log('步骤1: 发送解锁指令...')
+    try { this.port.write(buildUnlockCmd()) } catch (e) { this._error('解锁发送失败: ' + e.message) }
+
+    // 2) 500ms 后发读命令验证连接
+    setTimeout(() => {
+      this._log('步骤2: 发送读指令验证连接...')
+      this._queryAll()
+    }, 500)
+
+    // 3) 1.5s 后如果收到数据则启动轮询，否则重试解锁
+    setTimeout(() => {
+      if (this.connected) {
+        this._log('步骤3: 启动定时轮询 (每200ms)...')
+        // 再发一次解锁（确保后续写操作不超时）
+        try { this.port.write(buildUnlockCmd()) } catch {}
+        this._startPolling()
+      }
+    }, 1500)
+  }
+
+  /** 查询所有传感器数据（一次性读取 0x34 ~ 0x43 共 16 个寄存器） */
+  _queryAll() {
+    if (!this.port || !this.connected) return
+    try {
+      // 一次读取: AX~TEMP (寄存器 0x34~0x43 = 52~67 = 16个寄存器)
+      // 包含: 加速度(3) + 角速度(3) + 磁场(3) + 角度(6) + 温度(1) = 16
+      const cmd = buildReadRegistersCmd(0x34, 16)
+      this.port.write(cmd)
+    } catch (e) {
+      this._error('查询发送失败: ' + e.message)
+    }
+  }
+
+  /** 启动定时轮询 */
+  _startPolling() {
+    if (!this.connected) return
+    this._queryAll()
+    if (this.timer) clearInterval(this.timer)
+    this.timer = setInterval(() => this._queryAll(), 200)
+  }
+
+  /** 注册串口事件监听 */
+  _setupListeners() {
+    let dataCount = 0
+    this.port.on('data', (chunk) => {
+      dataCount++
+      if (dataCount <= 3) {
+        this._log(`收到原始数据 #${dataCount}: ${chunk.length} 字节 [${chunk.toString('hex').toUpperCase()}]`)
+      }
+      this._onData(chunk)
+    })
+    this.port.on('error', (err) => this._error('串口错误: ' + err.message))
+    this.port.on('close', (err) => {
+      this._warn(`串口已断开${err ? ': ' + err.message : ''}`)
+      this.connected = false
+      if (this.timer) { clearInterval(this.timer); this.timer = null }
+    })
+  }
+
+  /** 数据接收处理 */
+  _onData(chunk) {
+    this._modbusBuf = Buffer.concat([this._modbusBuf, chunk])
+
+    // 尝试从缓冲中解析 Modbus 帧
+    while (this._modbusBuf.length >= 5) {
+      // 查找帧头 (设备地址)
+      const idx = this._modbusBuf.indexOf(DEV_ADDR)
+      if (idx === -1) { this._modbusBuf = Buffer.alloc(0); break }
+      if (idx > 0) {
+        this._log(`跳过 ${idx} 个非帧头字节`)
+        this._modbusBuf = this._modbusBuf.slice(idx)
+      }
+
+      if (this._modbusBuf.length < 5) break
+
+      // 功能码必须是 0x03
+      if (this._modbusBuf[1] !== 0x03) {
+        this._log(`非 0x03 响应, 功能码=0x${this._modbusBuf[1].toString(16)}`)
+        this._modbusBuf = this._modbusBuf.slice(1)
+        continue
+      }
+
+      const byteCount = this._modbusBuf[2]
+      const expectedLen = 3 + 1 + byteCount + 2  // addr + func + byteCount + data + crc = 5 + byteCount
+      if (this._modbusBuf.length < expectedLen) break  // 等待更多数据
+
+      const frame = this._modbusBuf.slice(0, expectedLen)
+      this._modbusBuf = this._modbusBuf.slice(expectedLen)
+
+      // 解析
+      const regs = parseModbusResponse(frame)
+      if (regs) {
+        this._log(`Modbus解析成功: ${regs.length} 个寄存器: [${regs.map(r => '0x' + r.toString(16).padStart(4, '0').toUpperCase()).join(', ')}]`)
+        this._emitModbusData(regs)
+      } else {
+        this._log(`Modbus解析失败, 原始帧: [${frame.toString('hex').toUpperCase()}]`)
+      }
+    }
+
+    // 防止无限增长
+    if (this._modbusBuf.length > 512) {
+      this._log('缓冲溢出，重置')
+      this._modbusBuf = Buffer.alloc(0)
+    }
+  }
+
+  /** 发射 Modbus 解析结果，根据寄存器数量推断数据类型 */
+  _emitModbusData(regs) {
+    // 寄存器布局: [AX, AY, AZ, GX, GY, GZ, HX, HY, HZ, LRoll, HRoll, LPitch, HPitch, LYaw, HYaw, TEMP]
+    // 索引:       0    1    2    3    4    5    6    7    8    9     10    11     12    13    14    15
+    const len = regs.length
+
+    if (len >= 16) {
+      // 16 个寄存器：完整数据
+      const ax = toInt16(regs[0]), ay = toInt16(regs[1]), az = toInt16(regs[2])
+      const gx = toInt16(regs[3]), gy = toInt16(regs[4]), gz = toInt16(regs[5])
+      const hx = toInt16(regs[6]), hy = toInt16(regs[7]), hz = toInt16(regs[8])
+      const lroll = regs[9], hroll = regs[10]
+      const lpitch = regs[11], hpitch = regs[12]
+      const lyaw = regs[13], hyaw = regs[14]
+      const temp = toInt16(regs[15])
+
+      // 加速度 = 原始值/32768 * 16g
+      const accelVal = {
+        ax: +(ax / 32768 * 16).toFixed(4),
+        ay: +(ay / 32768 * 16).toFixed(4),
+        az: +(az / 32768 * 16).toFixed(4)
+      }
+      this._log('→ 加速度: ' + JSON.stringify(accelVal))
+      this.onData({ method: 'acceleration', sensor: this.sensorName, value: accelVal })
+
+      // 角速度 = 原始值/32768 * 2000°/s
+      const gyroVal = {
+        wx: +(gx / 32768 * 2000).toFixed(2),
+        wy: +(gy / 32768 * 2000).toFixed(2),
+        wz: +(gz / 32768 * 2000).toFixed(2)
+      }
+      this._log('→ 角速度: ' + JSON.stringify(gyroVal))
+      this.onData({ method: 'angularVelocity', sensor: this.sensorName, value: gyroVal })
+
+      // 磁场
+      const magVal = { hx, hy, hz }
+      this._log('→ 磁场: ' + JSON.stringify(magVal))
+      this.onData({ method: 'magnetic', sensor: this.sensorName, value: magVal })
+
+      // 角度 = (高16位<<16 | 低16位) / 1000°
+      const roll = toInt32(hroll, lroll)
+      const pitch = toInt32(hpitch, lpitch)
+      const yaw = toInt32(hyaw, lyaw)
+      const angleVal = {
+        roll: +(roll / 1000).toFixed(2),
+        pitch: +(pitch / 1000).toFixed(2),
+        yaw: +(yaw / 1000).toFixed(2)
+      }
+      this._log('→ 角度: ' + JSON.stringify(angleVal))
+      this.onData({ method: 'angle', sensor: this.sensorName, value: angleVal })
+
+      // 温度 = 原始值/100 ℃
+      const tempVal = { temp: +(temp / 100).toFixed(2) }
+      this._log('→ 温度: ' + JSON.stringify(tempVal))
+      this.onData({ method: 'temperature', sensor: this.sensorName, value: tempVal })
+
+    } else {
+      this._log('未知寄存器数量: ' + len)
+    }
+  }
+
+  /** 断开连接 */
+  disconnect() {
+    this.connected = false
+    if (this.timer) { clearInterval(this.timer); this.timer = null }
+    if (this.port && this.port.isOpen) {
+      try { this.port.close() } catch {}
+    }
+  }
+}
+
+module.exports = { WitMotionSensor }