The Accessory Shield is an all-in-one prototyping board for Arduino UNO and Bluno (BLE-enabled Arduino). It packs seven functional modules onto a single shield, providing a ready-made platform for developing wireless wearables, smart devices, and IoT prototypes using Bluetooth 4.0 (BLE).

Both hardware and software are open source, so you can customise the shield to suit your project. The shield is compatible with standard Arduino UNO and Bluno boards.

Key Features

• 128×64 OLED Screen – Display messages and data from your phone or sensors
• Buzzer – Sound notifications and simple music playback
• DHT11 Sensor – Temperature and humidity monitoring
• 1.5 A Relay – Switch external devices or integrate with other electronics
• Helical Potentiometer – Transmit real-time analogue data
• RGB LED – Full-colour status indication
• Mini Joystick – Directional input for interactive projects
• Open Source – Both hardware design and software libraries are freely available

Ideal For

• BLE wireless prototyping with Bluno
• Smart wearable and IoT development
• Environmental monitoring projects
• Learning Arduino sensor integration

Package Contents

• 1× Accessory Shield for Arduino

Resources

• Wiki – Accessory Shield for Arduino