100% compatible open-source clone of the Arduino Uno R3, USB cable, 9V snap connector, and 8AA battery pack (batteries not included). Power the Arduino with a 9V battery or use the 8AA battery pack (batteries not included). 8 rechargable AA batteries provide 9.6V. 8 alkaline batteries provide 12V. Recommended input voltage for the Arduino is 7-12V, so the battery pack is in the ideal voltage range. The Uno R3 uses a socketed ATmega328P chip and the ATMega16U2 USB bridge. On Windows 10, just plug in the USB cable, launch the Arduino IDE, and this device will appear on second COM port.
