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Green rectangular circuit board with black components and silver headers

Arduino

Arduino Uno Rev3 SMD development board A000073 ATmega328P

SKU CH-0D2N-4179S

Entry-level microcontroller board with ATmega328P for learning electronics and rapid prototyping

  • Ideal entry-level board for learning electronics and coding
  • Ready to use by connecting to a PC via USB cable
  • Powered by ATmega328P microcontroller for core functionality
  • Demonstrates basics of sensors and actuators for beginners
  • Suitable for rapid prototyping by experienced developers

Getting started with ATmega328P

The Arduino Uno Rev3 SMD board A000073 is an entry-level microcontroller platform for learning electronics and writing first sketches. It ships new and ready to use by connecting the supplied USB cable to a computer. The ATmega328P microcontroller runs the code and provides the I/O pins for sensors, actuators and simple circuits. Its robust layout tolerates beginner wiring mistakes during experiments.

Learners and rapid prototypes

Students, hobbyists and educators who need a straightforward introduction to embedded programming will find the board easy to set up and well documented. Engineers doing quick proof-of-concept work can iterate fast without designing custom hardware. Developers who require built-in wireless connectivity, higher clock speeds or more memory for complex firmware should evaluate other platforms instead.

ATmega328P microcontroller decides fit

The board centres on the ATmega328P 8-bit AVR microcontroller, which determines available flash, RAM, peripheral set and operating voltage. Matching your project requirements to this specific MCU is the single specification that confirms whether the Uno Rev3 SMD is the right part.

How it compares

Measured against everything we stock in Single-Board Computers & Dev Kits, at today’s prices. Recalculated every night.

Price $17.99
Cheaper than about 91% of the 1,420 comparable items (median $44.99).

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Specifications

No published specifications for this item yet.

Questions about this item

How often will the ATmega328P microcontroller need replacement under normal use?

The ATmega328P is a surface-mount component soldered to the board and is not designed for user replacement; the board itself is described as robust for long-term prototyping and learning.

What limits continuous operation of the ATmega328P when running sketches all day?

The ATmega328P runs at 5 V with 32 KB flash and 2 KB SRAM; sustained use is limited by available memory for code and variables, not by a thermal throttle.

Does the board generate noticeable heat or fan noise when powered via USB for extended periods?

The board has no fan and draws only the current required by the ATmega328P and onboard regulator; it remains cool to the touch during typical all-day USB-powered operation.

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