The computer cannot recognise the UNO R3 board?

Please check if your computer makes a new device recognition sound when the board is plugged in. If not, use another USB cable to connect to another USB port. Please connect the UNO board to another computer to make sure it is not a computer problem.

The UNO board heats up when it is powered on?

Please disconnect all connections to the control board and try to use another USB cable to check the problem. If there is still a problem, please send us a picture of the heating area for troubleshooting.

Unable to upload code to UNO board?

(1) Please make sure you have selected the correct board type and port #COM. (2) When you press the reset button, does the LED flash two or three times? If not, it may be that the bootloader is broken. Or just reach out to us.

Do I need extra parts to start?

No. The board and USB cable are included. You can start programming right away.

Is this suitable for 12+ students?

Yes. Recommended for learners under 12 with adult guidance as needed.

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

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ELEGOO UNO R3 Microcontroller Board

Product ID: 254187770

Details

Brand
ELEGOO
CPU model
Cortex A8
Installed RAM memory size
32 KB
Memory storage capacity
32 KB
Model name
ELEGOO UNO R3

⚡16MHz clock speed for lightning-fast processing

🔌Dual power input: USB 5V & 7-12V DC for versatile projects

🛡️PTC resettable fuse for robust short-circuit protection

Description

🚀 Elevate your DIY game with ELEGOO UNO R3 — where speed meets safety in every project!

BUILT IN SAFETY FIRST - Integrated PTC resettable fuse guards your board against wiring mishaps, ensuring your innovation stays protected and uninterrupted.
VERSATILE POWER OPTIONS - Supports USB 5V and 7-12V DC inputs, with recommended 9V1A for stable, uninterrupted operation on all your creative builds.
SMART WIRING MADE SIMPLE - Clearly labeled I/O interface pins on the female header connectors eliminate guesswork, accelerating your wiring and debugging process.
BLAZING FAST MICROCONTROLLER - ATmega328P chip delivers smooth, efficient performance at 16MHz clock speed, powering your projects with speed and reliability.
SEAMLESS ARDUINO IDE COMPATIBILITY - Plug-and-play with Arduino IDE for effortless coding and rapid prototyping—join the global maker movement with ease.

The ELEGOO UNO R3 Board features an ATmega328P microcontroller and ATmega16U2 USB interface chip, delivering 16MHz processing speed and 32KB flash memory. Compatible with Arduino IDE, it supports USB 5V and 7-12V DC power inputs, includes a PTC resettable fuse for short-circuit protection, and has clearly labeled I/O pins for easy wiring. RoHS compliant and lightweight, it’s the perfect development board for professional-grade prototyping and hobbyist projects alike.

Specifications

ASIN	B01EWOE0UU
Are Batteries Included	No
Best Sellers Rank	#92,987 in Computers ( See Top 100 in Computers ) #1,487 in Single-Board Computers
Brand	ELEGOO
Color	Black
Computer Memory Type	72-Pin EDO SIMM Memory
Customer Reviews	4.7 4.7 out of 5 stars (4,828)
Date First Available	7 October 2016
Graphics Card Description	Integrated
Graphics RAM Type	DDR DRAM
Hard Disk Description	HDD
Hard Drive Interface	ATA-4
Item Weight	27.2 g
Item model number	EL-CB-001
Manufacturer	Elegoo
Memory Technology	SRAM
Operating System	Windows 10
Optical Drive Type	BD-R
Processor Brand	Atmel
Processor Count	1
Processor Speed	0.02 GHz
Processor Type	Cortex A8
Product Dimensions	8 x 5.99 x 0.99 cm; 27.22 g
RAM Size	2 KB
Series	ELEGOO UNO R3 Board
Standing screen display size	3
Wireless Type	Bluetooth

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TrustScore 4.5 | 7,300+ reviews

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