(For R4) Hardware Backward Compatibility - for R4 maintains the same pin layout and 5V operating voltage as for R3. This means that existing expansion boards and projects can be easily ported to new boards. New onboard peripherals - The for R4 board features multiple exciting new peripherals, including a 12 bit DAC,CAN bus, operational amplifier, and SWD port. These newly added peripherals have expanded the possibilities for developers, making more advanced projects possible. More memory and faster clock - With the increase of storage capacity (16x) and clock speed (3x), for R4 Minima can perform more accurate calculations and handle more complex projects. ,This enables manufacturers to build more complex and advanced projects. Communication between human-machine interaction devices through USB-C - The for R4 can a mouse or keyboard when connected to its USB-C port, making it easy for manufacturers to create a fast and cool interface. Large voltage range and electrical stability - The for R4 board can use up to 24V power supply. thanks to its improved thermal design. Multiple protective measures are adopted in the circuit design to reduce the risk of damage to the board or computer caused by wiring errors by unfamiliar users. In addition, the pins of the RA4M1 microcontroller have overcurrent protection functionwhich can provide additional protection to prevent errors from occurring. Capacitive touch support - The RA4M1 microcontroller used on the for R4 board natively supports capacitive touch. Equipped with WiFiand Bluetooth functions - The for R4 WiFi has an ESP32-S3-MINI coprocessor that enhances the functionality of the RA4M1 microcontroller. Equipped with WiFiand Bluetooth connectivity capabilities, developers can easily connect to the internet and create loT projects. Onboard 12x8 LED matrix -The for R4 WiFi board is equipped with a bright 12x8 red LED matrix(a total of 96 points). This feature is very suitable for projects that use animation or draw sensor data,without the need for any additional hardware. Wiicl2C connector - The for R4 WiFi board is equipped with an industry standard Qwiic I2c connector for easy and fast prototyping design. Through a 12C connection, various compatible modules can be connected, allowing creators to easily create custom projects and expand the functionality of R4 WiFi. Runtime error diagnosis - The for R4 WiFi board has a built-in error capture mechanism that can detect operations that may cause the board to crash such as dividing by zero. When an error is detected, the board will print a detailed error description and reason on the serial monitor. Supports battery powered - The for R4 has additional pins that can turn off the main microcontroller while maintaining the internal powered by an external battery feature (for UNOR4 Minima) Powerful and reasonably priced - The for R4 Minima offers impressive performance at a competitive price. This board is a particularly affordable choice, consolidating for 's commitment to popularizing high-end technology. Note:Due to different factory batches, slight differences in appearance will not affect usage. Colour:Black Material:Plastic Package Contents: 1 * for R4 Minima Development Board Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.