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UNO R3 SMD ATmega328P Development Board for Arduino DIY
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; - You can burn the program with the USB cable; - It use the type-B USB socket which is the same as Arduino UNO R3; - On-board test indicator LED£¬ and the beginners can program to control it; - USB interface driver chip: CH340G; - 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: 32KB of which 2KB used by bootloader; - SRAM: 2KB; - EEPROM: 1KB; - Clock Speed: 16MHz.