Arduino Uno Rev3 [A000066]
Arduino microcontroller module with USB connection. Wide variety of accessory "Shields" available. It is intended for roboticists, artists, designers and hobbyists. Variety of I/O pins including analog, digital, PWM and more. Based on the ATmega328 (removable DIP IC). Revision 3. The Arduino Uno is a microcontroller board based on the ATmega328 microchip. 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 1.5m USB Cable Type A to Bor power it with a Wall Adapter Power Supply - 9VDC 650mA or DFRobot 7.4V Lipo 2500mAh Battery (Arduino Power Jack) to get started. The Arduino Uno differs from all preceding boards in that it does not use the FTDI USB-to-serial driver chip.
Arduino microcontroller module with USB connection. Wide variety of accessory "Shields" available. It is intended for roboticists, artists, designers and hobbyists. Variety of I/O pins including analog, digital, PWM and more. Based on the ATmega328 (removable DIP IC). Revision 3. The Arduino Uno is a microcontroller board based on the ATmega328 microchip. 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 1.5m USB Cable Type A to Bor power it with a Wall Adapter Power Supply - 9VDC 650mA or DFRobot 7.4V Lipo 2500mAh Battery (Arduino Power Jack) to get started. The Arduino Uno differs from all preceding boards in that it does not use the FTDI USB-to-serial driver chip.
Arduino microcontroller module with USB connection. Wide variety of accessory "Shields" available. It is intended for roboticists, artists, designers and hobbyists. Variety of I/O pins including analog, digital, PWM and more. Based on the ATmega328 (removable DIP IC). Revision 3. The Arduino Uno is a microcontroller board based on the ATmega328 microchip. 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 1.5m USB Cable Type A to Bor power it with a Wall Adapter Power Supply - 9VDC 650mA or DFRobot 7.4V Lipo 2500mAh Battery (Arduino Power Jack) to get started. The Arduino Uno differs from all preceding boards in that it does not use the FTDI USB-to-serial driver chip.
Arduino microcontroller module with USB connection. Wide variety of accessory "Shields" available. It is intended for roboticists, artists, designers and hobbyists. Variety of I/O pins including analog, digital, PWM and more. Based on the ATmega328 (removable DIP IC). Revision 3. The Arduino Uno is a microcontroller board based on the ATmega328 microchip. 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 1.5m USB Cable Type A to Bor power it with a Wall Adapter Power Supply - 9VDC 650mA or DFRobot 7.4V Lipo 2500mAh Battery (Arduino Power Jack) to get started. The Arduino Uno differs from all preceding boards in that it does not use the FTDI USB-to-serial driver chip.
in 34 offers
The lowest price for Arduino Uno Rev3 [A000066] right now is $27.00 at ProtoCentral, compared across 28 retailers.
The all-time low was $6.70 on 11 Oct 2025 — today's price is 303% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 18 June 2026.
Last updated at 18/06/2026 06:20:08
Arduino Uno REV3 [A000066]
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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!
Genuine Arduino Uno R3
Delivery between 22–26 June $0.03
Arduino Uno Rev3 A000066 ATmega328P AVR Development board Italy imported new original authentic
Delivery $5.62
Arduino A000066 Evaluation Boards - Embedded - MCU, DSP
Delivery between Sat – Wed $56.85
Arduino Uno Rev 3 SMD | A000073 | HT448044
Delivery between 23–26 June $94.62
Arduino A000066
Delivery between Fri – Wed $71.06
A000066 Arduino
Delivery $92.46
Arduino Uno Rev 3 - Microcontroller Board with ATmega328P, 14 I/O Pins | Arduino
Delivery between 22–26 June $28.43
A000066 Arduino Arduino Uno Rev3
Delivery between Mon – Tue $85.28
originally posted on arduino.cc
I’ve nobly spent a few hours with the Uno and am amazed. The IDE is easy enough for an entry level person like myself. Plan on programming the uno to trigger a relay that opens a solenoid on a water valve dependent on light and moisture sensor readings. I will surely become a lifelong Arduino aficionado.
originally posted on arduino.cc
I'm wondering why the copies have a 1M Ohm resistor that the "original" product does not?Does it change anything if I try to do some research or develop my own projects?I'm trying to learn about the ATtiny85 first and foremost, so I hope it's okay if I bought a few 'Made in China' copies of Arduino boards, since I intend on giving them (along with other types of microcontrollers like even the RP2040) to children in need for I wish to become an All-teaching English teacher here in France.I hope it will help children who back away from school or the system to find salvation in inventing things that us adults would never think of, and hope that one day, someone will understand how to stop us from being "sucked in" the machines that don't always help us to grow ... MoreI'm wondering why the copies have a 1M Ohm resistor that the "original" product does not?Does it change anything if I try to do some research or develop my own projects?I'm trying to learn about the ATtiny85 first and foremost, so I hope it's okay if I bought a few 'Made in China' copies of Arduino boards, since I intend on giving them (along with other types of microcontrollers like even the RP2040) to children in need for I wish to become an All-teaching English teacher here in France.I hope it will help children who back away from school or the system to find salvation in inventing things that us adults would never think of, and hope that one day, someone will understand how to stop us from being "sucked in" the machines that don't always help us to grow up.Obviously I will not try to steal anything from them without their consent. I would like to remain "open-source" to make sure that everyone can grow together. Even if I sometimes understand the necessity of needing space between people, as two people who aren't on the same page can't be forced to be together without it creating problems. We all need each other.What is their idea(s) belongs to them. I will give my opinion and advices to help them as best I can to fulfill their task(s).I want a world where everyone is truly Equal to one another.I want Peace.
originally posted on arduino.cc
Received my Arduino very fast… have only had a few minutes to work with it. Download of software very easy and intuitive. Connected the Arduino with cable to USB and able to run super quick program which worked flawlessly. So far this promises to be an incredible learning experience.
| Standing screen display size | 1.5 Inches |
| RAM | 8 KB SRAM |
| Wireless Type | Bluetooth |
| Memory storage capacity | 32 KB |
| Connectivity technology | USB |
Arduino Uno REV3 [A000066]
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 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!
Genuine Arduino Uno R3
Delivery between 22–26 June $0.03
Arduino Uno Rev3 A000066 ATmega328P AVR Development board Italy imported new original authentic
Delivery $5.62
Arduino A000066 Evaluation Boards - Embedded - MCU, DSP
Delivery between Sat – Wed $56.85
I’ve nobly spent a few hours with the Uno and am amazed. The IDE is easy enough for an entry level person like myself. Plan on programming the uno to trigger a relay that opens a solenoid on a water valve dependent on light and moisture sensor readings. I will surely become a lifelong Arduino aficionado.
I'm wondering why the copies have a 1M Ohm resistor that the "original" product does not?Does it change anything if I try to do some research or develop my own projects?I'm trying to learn about the ATtiny85 first and foremost, so I hope it's okay if I bought a few 'Made in China' copies of Arduino boards, since I intend on giving them (along with other types of microcontrollers like even the RP2040) to children in need for I wish to become an All-teaching English teacher here in France.I hope it will help children who back away from school or the system to find salvation in inventing things that us adults would never think of, and hope that one day, someone will understand how to stop us from being "sucked in" the machines that don't always help us to grow ... MoreI'm wondering why the copies have a 1M Ohm resistor that the "original" product does not?Does it change anything if I try to do some research or develop my own projects?I'm trying to learn about the ATtiny85 first and foremost, so I hope it's okay if I bought a few 'Made in China' copies of Arduino boards, since I intend on giving them (along with other types of microcontrollers like even the RP2040) to children in need for I wish to become an All-teaching English teacher here in France.I hope it will help children who back away from school or the system to find salvation in inventing things that us adults would never think of, and hope that one day, someone will understand how to stop us from being "sucked in" the machines that don't always help us to grow up.Obviously I will not try to steal anything from them without their consent. I would like to remain "open-source" to make sure that everyone can grow together. Even if I sometimes understand the necessity of needing space between people, as two people who aren't on the same page can't be forced to be together without it creating problems. We all need each other.What is their idea(s) belongs to them. I will give my opinion and advices to help them as best I can to fulfill their task(s).I want a world where everyone is truly Equal to one another.I want Peace.
Received my Arduino very fast… have only had a few minutes to work with it. Download of software very easy and intuitive. Connected the Arduino with cable to USB and able to run super quick program which worked flawlessly. So far this promises to be an incredible learning experience.
I bought the rev3 uno to start mining Duino coins. The product works absolutely fine. This is my first arduino product and I’m sold. With so many inspiring projects and applications viewed on you tube this purchase represents the expansion of raspberry pi hobby into arduino.The arduino website is super as was the purchase and delivery experience.Here is my crypto miner attached to a Mac busily mining 1 to 2 cents USD per day.
Just getting into using Arduino boards and this Uno Rev3 is great. Everything clearly laid out and has put up with a fair bit of abuse. Being flexible with power input is a bonus, plus you can use USB to program whilst powering through the jack plug too.Pi Hut dispatch and delivery lightening quick and service top notch!
A VERY POWERFUL PIECE OF KIT WITH LOTS OF WORLDWIDE SUPPORT. EASY TO PROGRAM EVEN FOR BEGINNERS. MORE IMPORTANT IS THE EXTRA BOARDS AND KIT THAT CAN GO WITH THE UNO3 TO PRODUCE VERY INTERESTING AND POWERFUL PROJECTS.PROBABLY THE BIGGEST FACTOR TO PICK THE UNO3 AND ALL ITS SUPPORT KIT IS THE RELATIVELY LOW COST NEEDED TO PRODUCE QUITE COMPLEX PIECES OF USEFUL TECHNOLOGY.
I really not in a position to explain much since I am a newbie on this. I made it work with basic stuff like Blink.uno but unable yet to make the board recognize a 1602 Keypad Shield I purchase d made by D1 ROBOT. Most probably my ignorance but after a while ni may succeed. For Example I have not been able on IDE to find. Board AtMega328p unless is the explained mini and other things like that. Steep curve to make this wirk , but I cannot blame this product. Eventually (maybe) I will make it work
| Standing screen display size | 1.5 Inches |
| RAM | 8 KB SRAM |
| Wireless Type | Bluetooth |
| Memory storage capacity | 32 KB |
| Connectivity technology | USB |
