Enhanced performance and reliability UNO R3 board delivers faster data transfer rates and improved storage handling, enabling stable operation for coding, robotics, and electronic projects. Optimized design ensures consistent, reliable results every time. Clear wiring and easy setup I/O interface names and functions are clearly marked on the female header connectors for straightforward wiring and quick setup. The UNO R3 board, compatible with Arduino, is ideal for beginners and experienced users who require accuracy and simplicity in prototyping. Builtin safety protection Equipped with a PTC resettable fuse to prevent short circuits caused by incorrect wiring. This UNO R3 development board helps ensure safe operation, protects your board from damage, and extends the lifespan of your development environment. Versatile compatibility across projects Fully compatible with Arduino IDE, supporting USB 5V input and 7V–12V DC input. For smaller projects, a stable 9V 1A power supply is recommended, ensuring performance for robotics, sensors, and DIY builds. Use scenarios Education and beginner projects: suitable for learning microcontroller programming and simple experiments with sensors and actuators. Robotics and prototyping: supports reliable operation for robot control and sensor integration using standard Arduino workflows. DIY projects and sensor hubs: enables safe, stable power and straightforward prototyping for home automation and environmental monitoring.