Product Introduction The micro controller ATmega32U4 and the new W5500 embedded Ethernet chip based on TCP/IP. There are 20 digital input / output pins (which 7 can be used as PWM output, 12 used as analog inputs), a 16 MHz crystal oscillator, a RJ45 interface, a mini USB connector, a power jack, a ICSP head, and a reset button. Just connect it to a computer using a USB cable, or through the AC-DC adapter or battery can be used for the power supply. Ethernet circuit board is different from the previous, USB communication function is built, not equipped with an external USB- serial converter. This allows the micro controller of Ethernet chip display for mouse and keyboard devices in the connected computer. Specifications Micro controller: ATmega32u4 Working voltage: 5V Input voltage: 7-12V plug (recommended) The input voltage of the plug (limit); 6-20V Digital I/O pin: 20 PWM channel: 7 Reserved Arduino pin 4 for SD card selected \10 for W5500 The analog input pin: 12 DC current of each I/O pin: 40 mA Direct current 3.3V pin: 1 A (only in the external power supply) Flash Memory:32 KB (ATmega32u4), the bootloader using 4 KB SRAM:2.5 KB (ATmega32u4) EEPROM:1 KB (ATmega32u4) Clock speed: 16 MHz Direct current 3.3V pin POE ready magnetic jack Micro SD card, with source voltage converter Distribution list The micro controller module of Ethernet chip x1
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