Mega 2560 plus Board, whose processor core is ATMEGA2560-16AU, is fully compatible with ARDUINO MEGA 2560 REV3. USB to TTL chip adopts more economic and stable CP2012. This plus board consists of 54-channel digital input and output ports, of which 15 pins are served as PWM output, 16 analog inputs, 4 serial communication ports, one 16MHz crystal oscillator, 1 USB port, 1 power socket, 1 ICSP interface and 1 reset button.
Specification
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Microcontroller: ATMEGA2560-16AU
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USB to TTL chip：CP2102
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Operating Voltage: 5V
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Input Voltage (recommended):DC 7-12V
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Digital I/O Pins: 54 (D0-D53)
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PWM Digital I/O Pins：15(D2-D13 D44-D46)
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Analog Input Pins: 16(A0-A15)
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DC Current per I/O Pin: 20 mA
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DC Current for 3.3V Pin: 50 mA
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Flash Memory: 256 KB of which 8 KB used by bootloader
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SRAM: 8 KB
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EEPROM: 4 KB
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Clock Speed: 16 MHz
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LED_BUILTIN:D13
Special Interfaces Description
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Serial communication interface(4 channel): Serial（D0 =RX0, D1 =TX0）, Serial1（D19 is RX1, D18 is TX1)
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Serial2 （D17 is RX2, D16 equals to TX2）, Serial3（D15 is RX3, D14 is TX3), D0 and D1 are connected to ATMEGA16U2-MU
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PWM port（Pulse width modulation): D2-D13 and D44-D46
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External interrupt pins：D2（interrupt 0), D3(interrupt 1), D21（interrupt 2), D20 (interrupt 3), D19(interrupt 4）and D18（interrupt 5）
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SPI communication interface：D53 stands for SS, D51 is MOSI, D50 is MISO, D52 equals to SCK
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IIC communication interface：D20 represents SDA, D21 is SCL
