Description:
This board is an "SMD" version of the UNO R3, meaning the ATmega328P microcontroller is soldered directly to the board rather than sitting in a socket. This low-profile design is more vibration-resistant and robust.
The primary upgrade is the USB Type-C connector, which offers a more secure physical connection and eliminates the need for legacy "printer cables." While it functions identically to an official Arduino in code, it requires the CH340 driver to be installed on your computer for the USB port to be recognized. It is the "workhorse" board of choice for STEM education and rapid prototyping.
Features:
USB Type-C Interface: Reversible, modern, and highly durable; compatible with standard smartphone and laptop charging cables.
SMD Microcontroller: Uses the surface-mount ATmega328P-AU, which is more compact and reliable for mobile robotics.
Reset Protection: Includes a resettable polyfuse to protect your computer's USB port from accidental shorts or overcurrent.
Full Shield Compatibility: Maintains the standard UNO R3 pinout, making it 100% compatible with existing motor, sensor, and LCD shields.
Specifications:
Microcontroller: ATmega328P (SMD Package)
USB-Serial Chip: CH340C
Operating Voltage: 5V
Input Voltage (Rec.): 7V−12V (via DC Barrel Jack)
Digital I/O Pins: 14 (6 provide PWM output)
Analog Input Pins: 6
DC Current per I/O: 20mA to 40mA
Flash Memory: 32KB (0.5KB used by bootloader)
SRAM / EEPROM: 2KB / 1KB
Clock Speed: 16MHz
USB Connector: Type-C
