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UNO R3 ATmega328P Development Board + IO Expansion Shield for Arduino
About Micro USB UNO R3 development board: - It is 100% compatible with Arduino UNO R3 program£¬ expansion shields£¬ IDE; - You can burn the program with your mobile phone’s micro USB cable; - It use the micro USB socket which it is very short£¬ so it is compatible with more expansion boards; - On-board test indicator LED£¬ and the beginners can program to control it; - USB interface driver chip: CH340G; - Microcontroller: Atmel 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: 16 MHz. About IO Extension Shield: - Compatible with Arduino Mega2560 R3£¬ UNO R3£¬ Leonardo R3; - Connection bridge between the modules and the Arduino board; - Lead out the SPI£¬ UART£¬ I2C£¬ PWM interface and analog interface of Arduino board; - On-board reset circuit£¬ power and reset indicator; - The Pin headers is 2.54mm pitch; - Great for DIY project.