Arduino Uno Rev3 SMD
The Arduino Uno SMD R3 is a microcontroller board based on the ATmega328 (datasheet). It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz crystal oscillator, 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 Arduino Uno SMD R3 is a microcontroller board based on the ATmega328 (datasheet). It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz crystal oscillator, 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 Arduino Uno SMD R3 is a microcontroller board based on the ATmega328 (datasheet). It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz crystal oscillator, 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 Arduino Uno SMD R3 is a microcontroller board based on the ATmega328 (datasheet). It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz crystal oscillator, 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.
in 11 offers
The lowest price for Arduino Uno Rev3 SMD right now is $33.01 at utmel.com, compared across 11 retailers.
The all-time low was $22.39 on 30 July 2026 — today's price is 47% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 20 Aug 2026.
Last updated at 20/08/2026 11:16:57
Arduino A000073 Original Arduino Uno R3 SMD, Green
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Arduino A000073 Evaluation Boards - Embedded - MCU, DSP
Delivery between Sat – Wed $56.16
Arduino A000073 Development Boards, Kits, Programmers
Delivery between Fri – Wed $56.16
ARDUINO UNO SMD REV3 ARDUINO Dev.kit: Arduino
Delivery $41.98
Arduino A000073 Uno Smd, Dev Kit
Delivery between 26–28 Aug $26.40
Arduino A000073 Development Boards & Kits - AVR
Delivery between 26 Aug – 1 Sept $24
Arduino UNO Rev3 SMD
Delivery $9.90
Arduino UNO SMD Rev3 development board
Delivery $4.93
Arduino Uno Rev3 SMD
30-day returns
ARDUINO UNO SMD REV3 - Arduino - Dev.kit: Arduino; GPIO, PWM, SPI, TWI, UART; Comp: ATMEGA328
Delivery between 31 Aug – 3 Sept $18.25
originally posted on arduino.cc
Great product and packaging
originally posted on arduino.cc
Great little board. Love these things!
originally posted on arduino.cc
They seem to have this open source thing figured out. Quality hardware, extensive libraries and examples and I am not pulling my hair trying to find solutions. Refreshing.
| Microcontroller | ATmega328 |
| Operating Voltage | 5V |
| Supply Voltage (recommended) | 7-12V |
| Maximum supply voltage (not recommended) | 20V |
| Digital I/O Pins | 14 (of which 6 provide PWM output) |
Arduino A000073 Original Arduino Uno R3 SMD, Green
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Arduino A000073 Evaluation Boards - Embedded - MCU, DSP
Delivery between Sat – Wed $56.16
Arduino A000073 Development Boards, Kits, Programmers
Delivery between Fri – Wed $56.16
ARDUINO UNO SMD REV3 ARDUINO Dev.kit: Arduino
Delivery $41.98
Arduino A000073 Uno Smd, Dev Kit
Delivery between 26–28 Aug $26.40
Great product and packaging
Great little board. Love these things!
They seem to have this open source thing figured out. Quality hardware, extensive libraries and examples and I am not pulling my hair trying to find solutions. Refreshing.
Great response time. I ordered the boards and they shipped within 48 hours (I think within 24 but I don’t exactly remember). This was a lifesaver, especially in the midst of a supply chain shortage for electronics.
I ordered 35 Arduino Uno's they came within a week
None
| Microcontroller | ATmega328 |
| Operating Voltage | 5V |
| Supply Voltage (recommended) | 7-12V |
| Maximum supply voltage (not recommended) | 20V |
| Digital I/O Pins | 14 (of which 6 provide PWM output) |
