SKU: 29043780023

Arduino Uno Rev 3 (Official)

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Description

Arduino Uno Rev 3 (Official)The Arduino Uno is the best board to get started with electronics and coding. If this is your first experience tinkering with the platform, the Uno is the most robust board you can start playing with. The Uno is the most used and documented board of the whole Arduino family. Rev 3 of the Arduino Uno has the following upgrades: 1) 1. 0 pinout: added SDA and SCL pins that are near to the AREF pin and two other new pins placed near to the RESET pin, the

The Arduino Uno is the best board to get started with electronics and coding. If this is your first experience tinkering with the platform, the Uno is the most robust board you can start playing with. The Uno is the most used and documented board of the whole Arduino family.

Rev 3 of the Arduino Uno has the following upgrades:
1) 1.0 pinout: added SDA and SCL pins that are near to the AREF pin and two other new pins placed near to the RESET pin, the IOREF that allow the shields to adapt to the voltage provided from the board. In future, shields will be compatible with both the board that uses the AVR, which operates with 5V and with the Arduino Due that operates with 3.3V. The second one is a not connected pin, that is reserved for future purposes.
2) Stronger RESET circuit.
3) ATmega 16U2 replace the 8U2.

The Arduino Uno Rev 3 does not use the FTDI USB-to-serial driver chip used in past designs. Instead, it features the ATmega16U2 programmed as a USB-to-serial converter.

Note that this is the official version of the Arduino Uno. While the price is higher than the clone boards, you can be sure of the reliability and compatibility of this official board with your computer & project.

Microcontroller: ATmega328P
Operating Voltage: 5V
Input Voltage (recommended): 7V to 12V
Input Voltage (limit): 6V to 20V
Digital I/O Pins: 14 (of which 6 provide PWM output)
PWM Digital I/O Pins: 6
Analog Input Pins: 6
DC Current per I/O Pin: 20 mA
DC Current for 3.3V Pin: 50 mA
Flash Memory: 32 KB (ATmega328P) of which 0.5 KB used by bootloader
SRAM: 2 KB (ATmega328P)
EEPROM: 1 KB (ATmega328P)
Clock Speed: 16 MHz
LED_BUILTIN: 13
Length: 68.6 mm
Width: 53.4 mm
Weight: 25 g

Datasheet: https://makersupplies.sg/Arduino_Uno_Datasheet.pdf

Getting Started: https://www.arduino.cc/en/Guide/ArduinoUno

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SKU: 29043780023

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Kristen M
Lowell, US
★★★★★ 5
Love these shoes!
Size: 9 Little Kid, Color: Rose Glitter W/Strap
My daughter loves these shoes! So comfy & easy to put on! They are even cuter in person!
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Reviewed in the United States on August 25, 2025
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Melissa
Carnegie, US
★★★★★ 5
Run small size up
Size: 10 Little Kid, Color: Rose Glitter W/Strap
Mini Melissa’s are my go to flats for my toddler they are so cute and flexible perfectly comfortable for her little feet.
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Reviewed in the United States on June 26, 2025
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Rossana Crego
Charlottesville, US
★★★★★ 1
Used shoes
Size: 10 Little Kid, Color: Glitter Clear W/Strap, Size: 10 Little Kid, Color: Glitter Clear W/Strap
If I could give this zero stars, I absolutely would. I ordered these shoes expecting them to be brand new since I paid full price and never selected any “used” option. What I received instead were clearly heavily worn shoes there were visible signs of use that you simply wouldn’t expect from a new product.
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Reviewed in the United States on March 25, 2026
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Anna
Carnegie, US
★★★★★ 5
Pricey but worth it
To say my daughter loves shoes would be an understatement and whenever you throw in a fun color and glitter to the mix, it only exponentially increases the love and excitement every time she puts on these shoes! The quality of the shoes are outstanding, they provide support in the right places and so far have been surprisingly durable (for a toddler that’s saying something)! This is the second pair of this shoe that I’ve purchased, the first was a pair of the clear glitter style. They are very cute shoes and the color matched the pictured on the website very well, which was great since I was trying to complete a “Princess Anna” look with a previously purchased dress. Note: I do suggest to size up one size, because in my experience they run a little small.
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Reviewed in the United States on August 2, 2024
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Emily Richardson
Draper, US
★★★★★ 5
My daughters favorite shoe!
Size: 10 Little Kid, Color: Gold W/Strap
My daughter wears these every single year- we always get the gold and clear glitter. They go with everything and so comfortable to her. Once it gets warm outside this is her go to shoe everyday!
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Reviewed in the United States on March 21, 2024

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