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 | USB Type-B |
Anonymous
Mar 24, 2026
Rating: 5/5
Exactly as described
Fast shipping and the packaging was secure. The board includes the standard headers and the chip is clearly marked. Ready to go out of the box.
Anonymous
Mar 24, 2026
Rating: 4/5
Great board, slightly pricey
It works perfectly for teaching my kids coding and circuits. It is more expensive than the compatible versions, but the reliability and support for the official IDE make it worth it.
Anonymous
Mar 16, 2026
Rating: 5/5
Perfect for beginners and pros alike
This is the genuine article. The build quality is excellent, and it recognized my computer immediately without needing extra drivers. Great for starting any electronics project.
Anonymous
Mar 07, 2026
Rating: 5/5
Reliable and authentic
I've bought clones before that had connectivity issues. This original Italian board works flawlessly every time. The soldering is clean and the components feel durable.
Anonymous
Mar 02, 2026
Rating: 4/5
Good starter kit component
Bought this as part of a learning bundle. The documentation online is vast, and this board supports all the standard libraries. Took off one star only because cables weren't included.
Anonymous
Mar 01, 2026
Rating: 5/5
Standard for our university lab
We ordered ten of these for our robotics course. Consistent performance across all units. No dead pins or faulty USB ports. Highly recommended for educational institutions.
Q: Is this board compatible with the Arduino IDE 2.0?
A: Yes, the Original Arduino Uno R3 is fully compatible with Arduino IDE 2.0 as well as legacy versions 1.8.x.
Q: What is the difference between this and the R4 version mentioned in the title?
A: This specific item is the classic R3 model with the ATmega328P. The R4 is a newer generation with different specs; please ensure you select the correct variant for your project needs.
Q: Can I power this with a 9V battery?
A: Yes, you can power the board via the barrel jack connector with a 7-12V supply, which includes standard 9V batteries.
Q: Does this come with a USB cable?
A: This listing is for the development board only. A standard USB Type-A to Type-B cable is required but sold separately.
Q: Is the source code for the bootloader open?
A: Yes, Arduino hardware and software are open-source. You can view and modify the bootloader code on the official Arduino GitHub repository.
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