KEYESTUDIO Mega 2560 Plus BoardKEYESTUDIO 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.SpecificationMicrocontroller: ATMEGA2560-16AUUSB to TTL chip：CP2102Operating Voltage: 5VInput Voltage (recommended):DC 7-12VDigital I/O Pins: 54 (D0-D53)PWM Digital I/O Pins：15(D2-D13 D44-D46)Analog Input Pins: 16(A0-A15)DC Current per I/O Pin: 20 mADC Current for 3.3V Pin: 50 mAFlash Memory: 256 KB of which 8 KB used by bootloaderSRAM: 8 KBEEPROM: 4 KBClock Speed: 16 MHzLED_BUILTIN:D13Interfaces DescriptionSpecial Interfaces DescriptionSerial communication interface (4 channel): Serial (D0 =RX0, D1 =TX0) , Serial1 (D19 is RX1, D18 is TX1)Serial2 (D17 is RX2, D16 equals to TX2）, Serial3（D15 is RX3, D14 is TX3), D0 and D1 are connected to ATMEGA16U2-MUPWM port (Pulse width modulation): D2-D13 and D44-D46External interrupt pins: D2 (interrupt 0), D3 (interrupt 1), D21 (interrupt 2), D20 (interrupt 3), D19 (interrupt 4) and D18 (interrupt 5）SPI communication interface: D53 stands for SS, D51 is MOSI, D50 is MISO, D52 equals to SCKIIC communication interface: D20 represents SDA, D21 is SCLDocumentsArduino softwareWIKI pageProgramming reference
