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Improved UNO R3 ATMEGA328P Board + Ethernet Shield W5100 for Arduino
Main Features: - UNO R3 board can be used as smallest system board and USBASP download APP - Useful for Arduino DIY project UNO R3: - Microcontroller: ATmega328 - Input voltage ( recommended ): 7 - 12V - Input voltage: 6 - 20V - Digital I/O pins: 14 ( of which 6 provide PWM output ) - Analog input pins: 6 - DC current per I/O pin: 40mA - DC current for 3.3V pin: 50mA - SRAM: 2KB ( ATmega328 ) - EEPROM: 1KB ( ATmega328 ) - Clock speed: 16MHz Ethernet Shield W5100: - It allows the Arduino to be a simple web server - Supports reading and writing Micro SD / TF card - With Micro SD card slot£¬ supports Micro SD card up to 2GB ( not included £© W5100 user manual: https://drive.google.com/open?id=0B2s4P7cCZcFDem9WNlh0RFFUbmc