Arduino Uno R3 SMD – Microcontroller Development Board with ATmega328P SMD Chip The Arduino Uno R3 SMD Edition is a popular open-source microcontroller development board based on the ATmega328P SMD (Surface-Mount Device) microcontroller. Functionally identical to the standard Arduino Uno R3, this version uses a surface-mounted ATmega328P microcontroller, making it more cost-effective and suitable for automated manufacturing. It features 14 digital I/O pins, 6 analog inputs, a 16 MHz quartz crystal, USB connection, and DC power jack – making it ideal for embedded systems, IoT, robotics, and prototyping. Product Specifications Feature Specification Board Name Arduino Uno R3 (SMD Edition) Microcontroller ATmega328P (SMD Package) Operating Voltage 5V Input Voltage (Recommended) 7V – 12V Input Voltage (Limits) 6V – 20V Digital I/O Pins 14 (of which 6 provide PWM output) Analog Input Pins 6 DC Current per I/O Pin 20 mA Flash Memory 32 KB (0.5 KB used by bootloader) SRAM 2 KB EEPROM 1 KB Clock Speed 16 MHz USB Interface Type-B or CH340 (depends on variant) Dimensions 68.6mm x 53.4mm Weight Approx. 25g Key Features Surface-Mounted ATmega328PUses the compact SMD version of the ATmega328P, offering the same functionality as the DIP version. USB Plug-and-PlayConnects directly to your computer via USB for programming and serial communication using the Arduino IDE. Standard Shield CompatibilityFully compatible with Arduino shields and add-on modules. Onboard Power ManagementBuilt-in voltage regulator supports input from USB or external power source. ICSP Header and Reset ButtonSupports in-system programming and manual resetting of the board. Benefits Identical Functionality to Original UnoOffers the same pinout and capabilities, ideal for all standard Arduino Uno projects. Compact and DurableSurface-mount design increases mechanical durability and is less prone to socket issues. Cost-Effective for ProductionIdeal for volume use or embedding into finished projects where the DIP version isn’t needed. Beginner FriendlySupported by the Arduino ecosystem with vast tutorials, libraries, and community help. Applications Prototyping and LearningGreat for students and developers experimenting with sensors, motors, and digital logic. IoT ProjectsConnect to WiFi, Bluetooth, GSM, or sensors for smart applications. Robotics and AutomationControl servos, actuators, and automation logic in DIY robotics. Embedded Control SystemsIdeal for use in small-scale embedded systems requiring basic logic and I/O control. STEM EducationWidely adopted in classrooms and maker spaces to teach electronics and programming.
