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Portable UNO R3 ATmega328P Development Board
It is 100% compatible with Arduino UNO R3 program£¬ expansion shields£¬ IDE; - The 9V battery case which is special for Arduino Board can supply power for UNO R3£¬ and there is 5V voltage regulator circuit on the motherboard£¬ so it allows you to show your projects in the outdoor without the PC; - Dedicated 9V battery box comes with a power switch£¬ you can easily connect the motherboard£¬ closed parcel battery more secure; - Automatically install USB interface driver£¬ it is very easy and convenient to burn the program directly through the USB port; - On-board test indicator LED£¬ and the beginners can program to control it; - Microcontroller: ATmega328P; - Operating voltage: 5V; - IO logic voltage: 5V; - Operating current: 500mA; - Digital I/O Pins: 14 (of which 6 provide PWM output); - Flash Memory: 32 KB of which 2 KB used by bootloader; - SRAM: 2KB; - EEPROM: 1KB; - Clock Speed: 16MHz.