【Compatibility】: This board is compatible with Atmega328p and CH340G serial converters, and it is 100% compatible with Arduino UNO R3 【0.96-inch OLED screen】: The display screen has a wide viewing angle and supports multiple control commands. It allows you to control the OLED brightness, switch boost circuits, and display ASCII characters, patterns, and more 【Easy installation】: Plug and play, no need for complex wiring controls. It comes with four M3 mounting holes, making it easy to fix onto PCB boards 【Compared to traditional ones】: It features a Type C interface, catering to the demands of the general public 【User-friendly】: This board is extremely compact and portable, allowing you to kickstart your own DIY Arduino projects