Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Development, Learning, Evaluation & Industrial Control Boards |
| Origin | - |
| Microcontroller | ATmega328P |
| Operating Voltage | 5V |
| Digital I/O Pins | 14 (6 PWM outputs) |
| Analog Input Pins | 6 |
| DC Current per 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 | ATmega16U2 |
Anonymous
Mar 25, 2026
Rating: 5/5
Consistent performance
I use these for rapid prototyping at work. Having the official board ensures that timing and voltage references are accurate, which saves hours of debugging later. Will buy again.
Anonymous
Mar 20, 2026
Rating: 5/5
Perfect gift for curious kids
Got this for my teenager who wants to learn coding and electronics. The kit aspect mentioned in the title isn't fully clear as this is just the board, but paired with a starter kit, it's unbeatable. Very durable.
Anonymous
Mar 18, 2026
Rating: 4/5
Great board, slightly pricey
You definitely pay a premium for the official branding compared to compatible boards, but you get what you pay for in terms of quality control and supporting the open-source community. It works flawlessly with the Arduino IDE.
Anonymous
Mar 12, 2026
Rating: 5/5
The gold standard for beginners
This is the genuine article. Everything works perfectly out of the box. The build quality is solid, and it recognized my computer immediately without needing extra drivers on Windows 10. Perfect for starting your first blinking LED project.
Anonymous
Mar 07, 2026
Rating: 5/5
Reliable and authentic
I've bought clones before, but there is a noticeable difference in stability with this official board. The USB connection is robust, and the pin headers are soldered cleanly. Highly recommended for anyone serious about learning electronics.
Anonymous
Mar 03, 2026
Rating: 5/5
Essential for university projects
Bought this for my embedded systems course. The documentation online is vast because so many people use this exact model. No compatibility issues with any of the shields I've tried so far.
Q: What is the difference between this R3 version and older versions?
A: The R3 version features additional SDA and SCL pins near the AREF pin, a stronger reset circuit, and uses the ATmega16U2 for USB communication instead of the older ATmega8U2, offering better driver support.
Q: Is this compatible with the Arduino IDE?
A: Yes, this is an official Arduino board and is fully supported by the latest version of the Arduino IDE across Windows, macOS, and Linux.
Q: Does this board come with a USB cable included?
A: No, this listing is for the development board only. A standard USB Type-A to Type-B cable is required to connect it to your computer and is sold separately.
Q: Can I power this board with a 9V battery?
A: Yes, you can power the board using a 9V battery by connecting it to the barrel jack or the Vin and GND pins. The onboard regulator handles the voltage conversion safely.
Q: Does this support 3.3V logic levels directly?
A: The Arduino UNO R3 operates at 5V logic levels. While it has a 3.3V pin to power external components, the I/O pins are not 5V tolerant if connected to a 3.3V system without a level shifter.
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