Microcontroller : ATmega328 Operating Voltage : 5V.
Using high-speed microprocessor controller (ATMEGA328),development interface and the environment are very simple, easy to understand, very suitable for beginners.
More stable RESET circuit.The RESET key position has also changed, was moved to the corner near the USB interface,more convenient press.
You can simply use a sensor, a variety of electronic components connected (such as LED lights, buzzers, buttons, photoresistors and so on),make all kinds of interesting works.
ATmega16U2 instead of 8U2,this does not mean that 16K flash R3 can make your code run faster, this update is for the service of USB interface chip, theoretically it allows UNO to simulate USB HID, such as MIDI/Joystick/Keyboard.

Technical Details

Product Details

Product Dimensions

Package Dimensions
Width : 3.15 inch
Height : 0.94 inch
Length : 6.69 inch

Item Weight: 0 ounce (View shipping rates and policies)
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ASIN : B073WV1H4T