Do I need to buy usb cable seperately?

Yes,you need,the USB cable is not included.Many thank and best regards.Pinto Elettronica Italia

With the Arduino Uno R3 connected to a PC VIA USB will I be able to read/write to the i/o lines from the PC?

Yes provided you download Arduino IDE.

Does it have built-in wifi?

Hi there, no, the uno would require a WiFi sheild attaching to it. Hope that helps

hello, can you confirm that these are original Arduino products and that they have "made in italy" not "designed in italy" on the board? many thanks

Hi Sud,Glad to be of help. The Arduino UNO R3 I ordered back in January of this year does have "made in italy" on it. It also came with what I believe was the correct packaging and I believe it to be genuine. However, I went back to check my review and see that the UNO offered now is £11-55 against the £21-01 I paid and I see that the supplier is different. Now a bargain is one thing but I think that around £20 or so is the going rate for a genuine UNO and I suspect that for £11-55 you may get a clone. I notice that the page does not claim to offer a genuine UNO. Searching amazon for "UNO R3" I found a model claiming to be genuine for £21-89 and I think this may be what you are looking for. I would add that I have a genuine UNO R3 so that I can test stuff that I can put on my website using this as the "reference" arduino design, but I do also use cheaper clones but only after using the genuine model as a prototyping board. It may be a bit naughty of amazon to change the supplier like this and leave the reviews in place. Hope this helps, please ask any other questions you may have.Regards,EddieB.

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Arduino Uno REV3 [A000066] - ATmega328P Microcontroller, 16MHz, 14 Digital I/O Pins, 6 Analog Inputs, 32KB Flash, USB Connectivity, Compatible with Arduino IDE for DIY Projects and Prototyping

Arduino Uno REV3 [A000066] - ATmega328P Microcontroller, 16MHz, 14 Digital I/O Pins, 6 Analog Inputs, 32KB Flash, USB Connectivity, Compatible with Arduino IDE for DIY Projects and Prototyping

Product ID: 47870397

Details

Brand
Arduino
CPU model
MediaTek
CPU speed
16 MHz
Memory storage capacity
32 KB
Model name
Uno

⚡16 MHz ATmega328P speed

📊14 Digital I/O + 6 Analog inputs

🔌USB connectivity for easy programming

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Description

🚀 Unlock your maker potential with the iconic Arduino Uno REV3!

VERSATILE I O PINS - 14 digital and 6 analog inputs let you connect sensors, motors, and more with ease.
PLUG PLAY USB INTERFACE - Instantly upload and debug sketches with hassle-free USB connectivity.
MASSIVE COMMUNITY IDE SUPPORT - Tap into endless tutorials, libraries, and projects to accelerate your build.
POWERFUL 16 M HZ MICROCONTROLLER - Run complex projects smoothly with the reliable ATmega328P core.
PERFECT FOR PROTOTYPING LEARNING - Trusted by educators and pros alike for rapid innovation and hands-on coding.

The Arduino Uno REV3 features a 16 MHz ATmega328P microcontroller with 32KB flash memory, 14 digital I/O pins (6 PWM), and 6 analog inputs, all accessible via USB for seamless programming. Fully compatible with the Arduino IDE, it’s the go-to board for beginners and professionals to prototype electronics, robotics, and IoT projects backed by a massive global community.

Specifications

ASIN	B008GRTSV6
Best Sellers Rank	4,413 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 18 in Motherboards
Box Contents	USB cable.
Brand Name	Arduino
CPU Model	MediaTek MT8125
Compatible Devices	PC, Smartphone
Country of Origin	Italy
Customer Reviews	4.6 4.6 out of 5 stars (9,646)
Global Trade Identification Number	07630049200050
Item Dimensions L x W x H	8L x 5.5W x 2.5H centimetres
Item Type Name	Arduino® Microcontroller UNO Rev3 DIL ATMega328
Item Weight	0.1 Pounds
Manufacturer	Arduino
Manufacturer Part Number	A000066
Memory Storage Capacity	32 KB
Model Name	Uno
Model Number	A000066
Network Connectivity Technology	USB
Operating System	FreeRTOS
Processor Brand	Atmel
Processor Count	1
Processor Speed	16 MHz
Product Warranty	1 YearManufacturer Guarantee
RAM Memory Technology	SRAM
Total USB Ports	1
Unit Count	1.0 count
Wireless Compability	Bluetooth

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