🚀 Unleash Your Creativity with Every Connection! Double-sided adhesive ensures secure attachment of mini breadboard. Compact dimensions (4.49 x 3.82 x 0.98 inches) fit any workspace. Seamlessly integrate with Arduino UNO R3 for quick project setups. Includes 2 LEDs and pushbutton circuits for instant functionality. Solder components directly or use the mini breadboard for flexibility. Compact size 2x LEDs Pushbutton circuits The HiLetgo UNO R3 Proto Shield is a versatile prototyping board designed for Arduino enthusiasts. It features two ready-to-use LEDs and pushbutton circuits, allowing for quick and efficient project development. With its compact size and easy connectivity options, this expansion board is perfect for both beginners and seasoned makers looking to innovate.