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 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 | USB Type-B |
Anonymous
Mar 31, 2026
Rating: 4/5
Reliable and robust
Great build quality. I've used it for several prototyping projects without any issues. The only reason for 4 stars is that the USB cable included felt a bit flimsy, but the board itself is excellent.
Anonymous
Mar 26, 2026
Rating: 5/5
Essential for university projects
Used this for my final year embedded systems project. It handled all my sensor inputs and motor controls flawlessly. The compatibility with the IDE is seamless.
Anonymous
Mar 25, 2026
Rating: 5/5
Great family project tool
Bought this to teach my kids about coding and circuits. The kit came with enough jumper wires and a breadboard to get started immediately. We built a traffic light system in an afternoon!
Anonymous
Mar 24, 2026
Rating: 5/5
Industry standard for a reason
You can't go wrong with the Uno R3. It has a massive community support base, making troubleshooting easy. The pin layout is perfect for using with standard shields.
Anonymous
Mar 13, 2026
Rating: 4/5
Solid performance
Works well for controlling servos and sensors. The voltage regulation is stable. I wish it had native USB-C, but the Type-B is still very common and functional.
Anonymous
Mar 09, 2026
Rating: 5/5
Perfect starter board for beginners
This Arduino Uno R3 kit is exactly what I needed to start my electronics journey. The documentation included was clear, and the board worked straight out of the box. Highly recommended for students.
Q: Is this board compatible with the latest Arduino IDE?
A: Yes, the Arduino Uno R3 is fully compatible with the latest versions of the Arduino IDE across Windows, Mac, and Linux.
Q: Does this kit include a breadboard and jumper wires?
A: Yes, this specific 'Kit' version includes a mini breadboard, a set of male-to-male jumper wires, and a USB cable along with the main board.
Q: Can I power this board with a 9V battery?
A: Absolutely. You can connect a 9V battery to the barrel jack or the Vin and GND pins. The onboard regulator will step it down to the required 5V.
Q: What is the maximum current I can draw from the 5V pin?
A: When powered via USB, you should limit draw to 500mA. When using the external power jack, the limit depends on your power source, but the board's regulator can typically handle up to 800mA safely.
Q: Is the source code for the bootloader open?
A: Yes, the bootloader on the ATmega328P is open-source, allowing you to inspect or modify it if you have advanced needs.
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