The For R4 maintains the same form factor, pinout, and 5V operating voltage as its predecessor, the R3. This ensures a seamless transition for existing expansion boards and projects, leveraging the extensive ecosystem established for the platform. Expanded Memory and Faster Clocks: Enhanced memory capacity and increased clock speeds enable more precise calculations and the ability to handle complex projects with ease. Additional On-Board Peripherals: The For R4 includes integrated peripherals such as a 12-bit DAC, CAN bus, and operational amplifiers. These provide expanded functionality and design flexibility for various applications. Extended 24V Tolerance: The board supports an extended input voltage range, allowing operation with up to 24V power supply. This simplifies integration with motors, LED strips, and other actuators by enabling the use of a single power source. SWD Connector: Debugging is simplified with a dedicated SWD interface. Connect an external debugger to monitor system performance and gain insight into application behavior during development. HID Support: Built-in HID (Human Interface Device) functionality allows the board to emulate a mouse or keyboard when connected to a computer via USB. This enables straightforward control of computer inputs, enhancing usability and project capabilities. Improved Version Features: 1. The DC power supply circuit uses an improved IC design, with extended interface layout to support additional connections. 2. The main control board is fully compatible with official standard functions. Note: Product appearance, color, and labeling may vary slightly between manufacturing batches. These variations do not affect performance or functionality. Color: Blue Material: PCB Type: WiFi Package Contents: 1 x Development Board Note: Light reflection and display differences may cause slight variations between the product color in images and the actual item. Measurement may vary by +/- 1-3 cm.