Power options Power via USB or external source or 716 V input with automatic selection to 5 V Seamless switching ensures the board runs from the most convenient source without manual intervention USB and debugging Builtin USB interface for programming and debugging Supports common development workflows with USB connectivity integrated on board Onboard regulator Onboard 5 V regulator provides regulated power to the board circuitry I/O and USB usage 6 generalpurpose I/O pins Two pins are used for USB communication only if your program actively communicates over USB; otherwise you can use all 6 pins even if you are programming via USB What it is designed for A compact, versatile development board that supports flexible power and USBbased programming Suitable for prototyping, education, and hobbyist or lightweight embedded projects Use scenarios Quick prototyping and debugging of microcontroller projects that require USB programming Sensor data logging or small peripheral control where power can come from USB or an external supply Lightweight robotics or automation projects that need a stable 5 V regulator and a simple USBenabled development path Key benefits and compatibility Flexible power options reduce the need for separate power supplies Integrated USB simplifies setup and debugging without additional adapters Onboard regulator helps maintain stable operation for connected peripherals Clear I/O usage model with USBaware pins supports straightforward development and programming workflows Technical notes Power handling scenarios include USBonly, external power, or mixed use with automatic 5 V regulation I/O pin availability adapts based on USB activity to support both USB programming and general I/O needs