Seeeduino Mega Microcontroller Board ATmega2560 For Arduino USB Port

Features:
ATmega 2560 @ 16MHz.
Selectable 5V/3.3V operation.
70 Digital IO.
16 Analog inputs.
14 PWM outputs.
4 Hardware serial ports (UART).

Specifications:
Operating Voltage: 5V / 3.3V
Operating Temperature: -20~70℃
Input Voltage: 6-20V
DC Current per IO pin: 40mA
Flash Memory: 256k
SRAM: 8k
EEPROM: 4k
Power Jack: 2.54mm, 2pin JST
8-Bit Timers/Counters: 2
16-Bit Timers/Counters: 4
8-Bit Pulse Width Modulator (PWM): 4
Programmable PWM Channels: 12
Programmable PWM Resolution (Bits): 2 -16
Analog to Digital Input Channels (ADC): 16
ADC Resolution (Bits): 10
Programmable USART Channels: 4
On-Chip Analog Comparator: 1
Master/Slave SPI Interface: 1
Byte Oriented 2 -Wire Serial Interface: 1