Introducing the UNO R3 ATmega328P CH340G, a compatible board designed for use with Arduino projects. This version has been meticulously optimized to maintain consistency and compatibility with the original Arduino, while also being exceptionally user-friendly. Specification: Microcontroller: ATmega328 Operating Voltage: 5V Recommended Input Voltage: 7-12V Input Voltage Limits: 6-20V Digital I/O Pins: 14 (including 6 with PWM output) Analog Input Pins: 6 DC Current Per I/O Pin: 40 mA DC Current for 3.3V Pin: 50 mA Flash Memory: 32 KB (including 0.5 KB used by the bootloader) SRAM: 2 KB EEPROM: 1 KB Clock Speed: 16 MHz Uno R3 Board based on Arduino: This is the updated Uno R3 board, which inherits all the features of its predecessor while replacing the 8U2 with an ATmega16U2 (previously 8U2 or FTDI on earlier models). This change results in faster data transfer rates and expanded memory capacity. No drivers are required for Linux or Mac operating systems, and this Uno board can also emulate various USB devices like keyboards, mice, and joysticks. Specifications: Microcontroller: ATmega328P Operating Voltage: 5V Recommended Input Voltage: 7-9V Digital I/O Pins: 14 (with 6 offering PWM output) PWM Digital I/O Pins: 6 Analog Input Pins: 6 DC Current per I/O Pin: 20 mA DC Current for 3.3V Pin: 50 mA Flash Memory: 32 KB (ATmega328P, with 0.5 KB used by the bootloader) SRAM: 2 KB (ATmega328P) EEPROM: 1 KB (ATmega328P) Clock Speed: 16 MHz Dimensions: Length 68.6 mm, Width 53.4 mm Weight: 25 g

