Official Arduino Uno R3 SMD Board

DESCRIPTION: The Official Arduino Uno R3 SMD Microcontroller Board is a versatile and reliable development board based on the ATmega328P in a surface-mount device (SMD) package. It is designed for beginners, students, and electronics enthusiasts, providing a flexible platform for a wide range of projects—from simple LED circuits to sensor-driven prototypes and robotics. 
 
KEY FEATURES:
Features the ATmega328P microcontroller in an SMD package running at 16 MHz
USB interface using ATmega16U2 as a USB-to-Serial converter
Standardized Rev3 1.0 pinout with added SDA, SCL, and IOREF pins for enhanced shield compatibility
Built-in LED connected to digital pin 13 for visual feedback
Onboard reset button with auto-reset capability via software
Power options include USB, AC-to-DC adapter, or battery
 
TECHNICAL SPECIFICATIONS:
Model Type: Uno | Model No.: A000073
Microcontroller: ATmega328P (SMD package)
Operating Voltage: 5V | Input Voltage: 6–20V (recommended 7–12V)
Digital I/O Pins: 14 (6 PWM) | Analog Input Pins: 6
PWM Digital I/O Pins: 6
Clock Speed: 16 MHz
Flash Memory: 32 KB (0.5 KB used by bootloader)
SRAM: 2 KB | EEPROM: 1 KB
Connectivity: USB-B port, DC power jack, ICSP header
Board Dimensions: 70 mm (L) × 58 mm (W) × 17 mm (H)
Weight: 35 grams