Arduino Uno Rev3 SMD
Product description Arduino Uno R3. In addition to all the features of the previous board, the Uno now uses an ATmega16U2 instead of the 8U2 found on the Uno (or the FTDI found on previous generations). This allows for faster transfer rates and more memory. No drivers needed for Linux or Mac (inf file for Windows is needed and included in the Arduino IDE), and the ability to have the Uno show up as a keyboard, mouse, joystick, etc. Never fear for accidental electrical discharge, either since since the Uno R3 SMD also includes a plastic base plate to protect it! The Uno R3 also adds SDA and SCL pins next to the AREF. In addition, there are two new pins placed near the RESET pin. One is the IOREF that allow the shields to adapt to the voltage provided from the board. The other is a not connected and is reserved for future purposes. The Uno R3 works with all existing shields but can adapt to new shields which use these additional pins.
Product description Arduino Uno R3. In addition to all the features of the previous board, the Uno now uses an ATmega16U2 instead of the 8U2 found on the Uno (or the FTDI found on previous generations). This allows for faster transfer rates and more memory. No drivers needed for Linux or Mac (inf file for Windows is needed and included in the Arduino IDE), and the ability to have the Uno show up as a keyboard, mouse, joystick, etc. Never fear for accidental electrical discharge, either since since the Uno R3 SMD also includes a plastic base plate to protect it! The Uno R3 also adds SDA and SCL pins next to the AREF. In addition, there are two new pins placed near the RESET pin. One is the IOREF that allow the shields to adapt to the voltage provided from the board. The other is a not connected and is reserved for future purposes. The Uno R3 works with all existing shields but can adapt to new shields which use these additional pins.
Product description Arduino Uno R3. In addition to all the features of the previous board, the Uno now uses an ATmega16U2 instead of the 8U2 found on the Uno (or the FTDI found on previous generations). This allows for faster transfer rates and more memory. No drivers needed for Linux or Mac (inf file for Windows is needed and included in the Arduino IDE), and the ability to have the Uno show up as a keyboard, mouse, joystick, etc. Never fear for accidental electrical discharge, either since since the Uno R3 SMD also includes a plastic base plate to protect it! The Uno R3 also adds SDA and SCL pins next to the AREF. In addition, there are two new pins placed near the RESET pin. One is the IOREF that allow the shields to adapt to the voltage provided from the board. The other is a not connected and is reserved for future purposes. The Uno R3 works with all existing shields but can adapt to new shields which use these additional pins.
Product description Arduino Uno R3. In addition to all the features of the previous board, the Uno now uses an ATmega16U2 instead of the 8U2 found on the Uno (or the FTDI found on previous generations). This allows for faster transfer rates and more memory. No drivers needed for Linux or Mac (inf file for Windows is needed and included in the Arduino IDE), and the ability to have the Uno show up as a keyboard, mouse, joystick, etc. Never fear for accidental electrical discharge, either since since the Uno R3 SMD also includes a plastic base plate to protect it! The Uno R3 also adds SDA and SCL pins next to the AREF. In addition, there are two new pins placed near the RESET pin. One is the IOREF that allow the shields to adapt to the voltage provided from the board. The other is a not connected and is reserved for future purposes. The Uno R3 works with all existing shields but can adapt to new shields which use these additional pins.
in 15 offers
The lowest price for Arduino Uno Rev3 SMD right now is $26.26 at element14 Australia, compared across 13 retailers.
The all-time low was $20.79 on 16 Oct 2026 — today's price is 26% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 6 Nov 2026.
Last updated at 06/11/2026 19:48:13
Arduino A000073 Dev Brd ATMEGA328 Arduino Uno R3 Smd Ed
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 Uno Smd, Dev Kit
Delivery between 11–17 Nov $26.40
Arduino A000073 Development Boards, Kits, Programmers
Delivery between Sat – Wed $58.24
Arduino Uno Smd Rev3 | Arduino
Delivery between 11–17 Nov $29.12
A000073 Arduino Arduino Uno SMD Rev3
Delivery between Tue – Wed $87.36
Arduino A000073 Development Boards & Kits - AVR
Delivery between 13–19 Nov $24
Arduino UNO Rev3 SMD
Delivery $9.90
Uno Rev3 SMD Microcontroller Board [A000073] - ATmega328P, 16MHz, 32KB Flash, USB & PWM Support, Ideal for DIY Projects, STEM Learning, Robotics, and
Arduino Uno Rev3 SMD
Arduino Uno SMD Rev3
Delivery between Tue – Wed $6.95
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.
| Installed Memory | 2 KB (SRAM) |
| Memory Capacity | 2 KB (SRAM) |
| Memory Type | SRAM, EEPROM, Flash Memory |
| Processor Type | Microcontroller |
| Processor Model | ATmega328, ATmega16U2 (USB-to-Serial converter), ATmega328P |
Arduino A000073 Dev Brd ATMEGA328 Arduino Uno R3 Smd Ed
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 Uno Smd, Dev Kit
Delivery between 11–17 Nov $26.40
Arduino A000073 Development Boards, Kits, Programmers
Delivery between Sat – Wed $58.24
Arduino Uno Smd Rev3 | Arduino
Delivery between 11–17 Nov $29.12
A000073 Arduino Arduino Uno SMD Rev3
Delivery between Tue – Wed $87.36
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
| Installed Memory | 2 KB (SRAM) |
| Memory Capacity | 2 KB (SRAM) |
| Memory Type | SRAM, EEPROM, Flash Memory |
| Processor Type | Microcontroller |
| Processor Model | ATmega328, ATmega16U2 (USB-to-Serial converter), ATmega328P |
