About this item

• Completelycompatible with Arduino Uno R3
• The BOARD now uses an 16U2 instead of the ATMega8U2 chip.This update is for the USB interface chip, theoretically it allows UNO to emulate USB HID, such as MIDI/Joystick/Keyboard.
• More stable RESET circuit.The position of the RESET button has also changed.It has been moved to the corner of the board near the USB port, which is more convenient to press.
• Pin changes:Two I2C pins were added next to the AREF pin (SDA and SCL are just copies of Analog 4 and 5, not additional I2C interfaces)In addition, two pins were added next to RESET, one is IOREF, which allows the expansion board to adapt to the onboard voltage,This pin only tells the expansion board what the current onboard voltage is (for example, UNO is 5V, which can be seen as a copy of the power pin and does not provide level pull-up), and the other is a placeholder pin for future use.
• 【What You Get】UNO R3 Board ATmega328P + USB Cable(Arduino-Compatible) for Arduino;12 Month Warranty with Replacement Coverage.Any issues with the UNO R3 Board, please contact us in the first time, we will do our best to help you.(The order number will serve as the warranty.)

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