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 9 offers
The lowest price for Arduino Uno Rev3 SMD right now is $20.79 at AliExpress.com - AliExpress-226247430, compared across 9 retailers.
The all-time low was $20.79 on 16 Oct 2026. That's the lowest price we've ever tracked — a great time to buy.
Prices last updated 16 Oct 2026.
Last updated at 16/10/2026 00:44:26
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!
1pcs Arduino UNO R3 Development Board Original Arduino Microcontroller C Language Programming
Delivery $8.59
Arduino A000073 Development Boards, Kits, Programmers
Delivery between Sat – Wed $57.81
ARDUINO UNO SMD REV3 ARDUINO Dev.kit: Arduino
Delivery $43.22
Arduino A000073 Uno Smd, Dev Kit
Delivery between 21–27 Oct $26.40
Arduino UNO Rev3 SMD
Delivery $9.90
Arduino Uno SMD Rev3
Delivery between Mon – Tue $6.95
ARDUINO UNO SMD REV3 - Arduino - Dev.kit: Arduino; GPIO, PWM, SPI, TWI, UART; Comp: ATMEGA328
Delivery between 26–30 Oct $18.79
Arduino Uno Rev3 SMD [A000073] Microcontroller Board - ATmega328P, 16MHz, 32KB Flash, USB & PWM Support, Ideal for DIY Projects, STEM Learning, Roboti
Free delivery between 27–30 Oct
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 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!
1pcs Arduino UNO R3 Development Board Original Arduino Microcontroller C Language Programming
Delivery $8.59
Arduino A000073 Development Boards, Kits, Programmers
Delivery between Sat – Wed $57.81
ARDUINO UNO SMD REV3 ARDUINO Dev.kit: Arduino
Delivery $43.22
Arduino A000073 Uno Smd, Dev Kit
Delivery between 21–27 Oct $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
| 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 |
