Arduino UNO SMD R3 Board – ATmega328P Development Board

he Arduino UNO SMD R3 is one of the most widely used development boards in the world, designed for learning, prototyping, and deploying embedded systems. Built around the ATmega328P microcontroller in SMD form, it offers the same functionality as the DIP version with improved durability and a slimmer profile.

It is fully compatible with the Arduino IDE and supports a massive ecosystem of shields, libraries, and tutorials from Arduino. If you’re doing hobby projects, academic work, or early-stage product prototyping, this board is best.

Key Features

• ATmega328P microcontroller (SMD package)

• Operating Voltage: 5V

• Input Voltage (recommended): 7–12V

• 14 Digital I/O Pins (6 PWM)

• 6 Analog Input Pins

• Clock Speed: 16 MHz

• USB Interface for programming & power

• ICSP header and reset button

• Compatible with Arduino shields & IDE

  Technical Specifications

  Parameter	Value
  Microcontroller	ATmega328P
  Architecture	AVR
  Flash Memory	32 KB (0.5 KB used by bootloader)
  SRAM	2 KB
  EEPROM	1 KB
  Digital I/O Pins	14
  PWM Pins	6
  Analog Inputs	6
  Clock Speed	16 MHz
  USB Controller	ATmega16U2
  Board Type	SMD R3