The Arduino Uno R3 Compatible Board is a microcontroller board based on the ATmega328. It provides 14 digital input/output pins (6 configurable as PWM outputs), 6 analog inputs, a 16 MHz ceramic resonator, USB connection, power jack, ICSP header, and reset button. The board includes a cable for direct USB connection so you can program and power the board from your computer, or power it via an AC-to-DC adapter or battery.
Features
Easy application programming using the open-source Arduino IDE.
Ready libraries for most sensors and application modules to accelerate prototyping.
Well-documented platform with extensive community resources and examples available at www.arduino.cc.
Key Specifications
Microcontroller: ATmega328.
Analog I/O Pins: 6.
Digital I/O Pins: 14 (6 provide PWM output).
SRAM: 2 KB; EEPROM: 1 KB.
Flash Memory: 32 KB (0.5 KB used by bootloader).
Clock Speed: 16 MHz; Operating Voltage: 5V.
DC Current per I/O Pin: 40 mA; DC Current for 3.3V Pin: 50 mA.
Input Voltage (recommended): 7–12V; Input Voltage (limit): 6–20V.
This Arduino Uno R3 SMD board is suitable for learning microcontroller programming, rapid prototyping, and integrating with a wide range of sensors and shields supported by the Arduino ecosystem.