Accessory Shield for Arduino

This Accessory Shield is for Bluno (BLE-integrated Arduino Uno), serving as a wireless prototyping platform for developing smart bracelets, pedometers via low-power BLE. It features 7 modules: 128x64 OLED (displays phone text), buzzer, DHT11 temp/humidity sensor, 1.5A relay (for external circuits, refer to relay wiki), helical potentiometer (sends real-time data to phone), RGB LED, and mini joystick (5-direction input).