SKU: 2083248186

Arduino Uno Surface Mount (Revision 3)

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Description

Arduino Uno Surface Mount (Revision 3)The Arduino Uno Rev3 SMD is a microcontroller board based on the ATmega328. It has 14 digital input output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz ceramic resonator (CSTCE16M0V53 R0), a USB connection, a power jack, an ICSP header, and a reset button. It contains everything needed to support the microcontroller; simply connect it to a computer with a USB cable or power it with a AC to DC adapter or battery to get

The Arduino Uno Rev3 SMD is a microcontroller board based on the ATmega328. It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz ceramic resonator (CSTCE16M0V53-R0), a USB connection, a power jack, an ICSP header, and a reset button. It contains everything needed to support the microcontroller; simply connect it to a computer with a USB cable or power it with a AC-to-DC adapter or battery to get started.

The Uno differs from all preceding boards in that it does not use the FTDI USB-to-serial driver chip.

Additional features coming with the R3 version are:

  • ATmega16U2 instead 8U2 as USB-to-Serial converter.
  • 1.0 pinout: added SDA and SCL pins for TWI communication placed 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 and the second one is a not connected pin, that is reserved for future purposes.
  • Stronger RESET circuit.

"Uno" means "One" in Italian and is named to mark the upcoming release of Arduino 1.0. The Uno and version 1.0 will be the reference versions of Arduino, moving forward. The Uno is the latest in a series of USB Arduino boards, and the reference model for the Arduino platform.

Specifications:

  • Microcontroller: ATmega328P
  • Operating Voltage: 5V
  • Input Voltage (Recommended): 7-12V
  • Input Voltage (Limit): 6-20V
  • 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
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Exchange/Return Notes
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SKU: 2083248186

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Joshua Garner
Waukegan, US
★★★★★ 5
Don’t hesitate
Size: 15 FT, Style: 0 (1/0) AWG RED
Tough good quality wire!
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Reviewed in the United States on May 5, 2026
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West
Lexington, US
★★★★★ 5
Buy them. You won't regret it.
Size: 10 FT, Style: 0 (1/0) AWG RED
Thick, flexible, quality cable. Overkill for what I've got but man they flex like wet noodles easy to run.
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Reviewed in the United States on October 21, 2025
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Fazal
Boise, US
★★★★★ 5
Quality.
Size: 15 FT, Style: 0 (1/0) AWG RED, Size: 15 FT, Style: 0 (1/0) AWG RED
If you’re reading this stop just get it.
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Reviewed in the United States on May 20, 2026
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Zack
Belleville, US
★★★★★ 4
slightly smaller than sky high
Size: 30 FT, Style: 0 (1/0) AWG RED
wire is okay but it is definitely on the thinner side, was slightly smaller than my sky high 1/0 wire but for the price difference this is definitely worth it
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Reviewed in the United States on February 23, 2025
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Verified Purchase
chase guerlain
Charlottesville, US
★★★★★ 5
Heavy gauge battery cable
Size: 10 FT, Style: 0 (1/0) AWG RED
Heavy duty works good
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Reviewed in the United States on March 11, 2026

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