Note: To access all shared projects, get information about environment setup, and view other guides, please visit Explore-In-HMOS-Wearable Index.

Drive Sense

A HarmonyOS ArkTS wearable app that monitors and evaluates driving behavior in real time. It uses accelerometer and gyroscope sensors to detect harsh braking, sharp turns, and stop-and-go events, providing instant feedback with animations and storing driving summaries locally.

Preview

Use Cases

• Start/stop driving session with one click
• Analyze real-time accelerometer and gyroscope data
• Detect harsh braking, sharp turns, and stop-go behavior
• Provide instant animations for risky events
• Store summaries locally in RDB
• Swipe-to-delete history items

Technology

Stack

• Languages: ArkTS (TypeScript)
• UI: ArkUI (@kit.ArkUI) with declarative Stage model
• Tools/IDE: DevEco Studio 5.1.0.260
• SDK: HarmonyOS SDK 5.1.0.54
• Libraries: SensorServiceKit, BackgroundTasksKit, AbilityKit, RDB
• Navigation: NavPathStack with slide transitions

Required Permissions

• ohos.permission.ACCELEROMETER
• ohos.permission.GYROSCOPE
• ohos.permission.RUN_BACKGROUND

Directory Structure

src/main/ets/
├── animation/
│   └── LottieAnimation.ets
├── entryability/
│   └── EntryAbility.ets
├── entrybackupability/
│   └── EntryBackupAbility.ets
├── model/
│   ├── DriveSummary.ets
│   └── TableDefinition.ets
├── pages/
│   ├── Index.ets
│   ├── DetailPage.ets
│   ├── HistoryPage.ets
│   └── SplashPage.ets
├── service/
│   ├── HistoryTable.ets
│   └── Rdb.ets
├── util/
│   ├── ConstantUI.ets
│   ├── CommonConstantsDb.ets
│   └── Logger.ets
└── viewmodel/
    └── DriveSummaryViewModel.ets

Constraints and Restrictions

Supported Device

• Huawei Watch 5 (HarmonyOS 5.1.0+)

App Limits

• Works only on real devices with motion sensors
• No backend, summaries stored locally
• Optimized for wearable performance and battery

License

Drive Sense is distributed under the terms of the MIT License.
See the LICENSE file for details.