Product Description：

ATmega 328P Chip: R3 board is equipped with an ATmega328P microcontroller with 14 digital I/O pins and 8 analog input pins, allowing users to connect a variety of sensors, displays, and other peripherals

R3 Board: The ATmega328 has 32 KB (0.5 KB of which is occupied by the bootloader). It also has 2 KB and 1 KB of EEPROM (which can be read and written using the EEPROM library)

Shield Function: Two new pins are also placed near the RESET pin. One is IOREF, which allows the shield to adapt to the voltage provided by the board, and the other is reserved for future use. The R3 works with all existing shields and can adapt to new shields that use these additional pins

Atmega16U2 Chip: The R3 board can be powered through the USB connection or using an external power supply, the pin names are clearly printed on the header connector, making it more precise and easier to work with wires, the RX and TX LEDs on the board will flash when data is being transferred to the computer through the USB to Serial chip and the USB connection

Ar-duino Kit: You don't need to worry about whether you can program it with Ar-duino IDE. You can use it just like an Ar-duino r3 board. R3 is fully compatible with Ard-uino UNO

Brand: M.

Memory Storage Capacity: 32 KB.

CPU Speed: 16 MHz.

Connectivity Technology: USB.

Packaging includes:1x R3 Development Board.