This project demonstrates how to use the BleuIO USB dongle as a serial port on an Android device via OTG (On-The-Go) USB. Using Capacitor 6 and the @adeunis/capacitor-serial plugin, we establish a serial connection, send AT commands, and read responses in real time.

This project supports both BleuIO and BleuIO Pro dongles.

• Establish a serial connection with BleuIO via an Android device
• Send and receive AT commands
• Scan for nearby BLE devices
• Works with Capacitor 6 and Angular

• BleuIO or BleuIO Pro USB dongle
• Android device (with OTG support)
• OTG cable
• Node.js 18+
• Java 17 (required for Capacitor 6)
• Android Studio (for building and running the app)

git clone https://github.com/smart-sensor-devices-ab/bleuio-serial-android-angular-typescript.git
cd bleuio-serial-android-angular-typescript

npm install

ng build --configuration production

npx cap sync android

npx cap open android

• Ensure your Android device is connected via USB.
• Enable USB debugging on your device.
• In Android Studio, click Run to install and launch the app on your device.

1. Connect BleuIO: Press the Connect to BleuIO button to establish a serial connection.
2. Send AT Command: Press Send ATI Command to retrieve device information.
3. Scan BLE Devices: Press Scan BLE Devices to search for nearby BLE devices.

• If you see Permission Denied, make sure you have granted OTG USB permissions.
• If the app does not detect the BleuIO dongle, check if OTG is enabled on your Android device.
• If the npx cap sync android command fails, ensure all dependencies are installed.

This project is open-source and available under the MIT License.