DFRobot Mega 2560 - Arduino Mega 2560 R3 Compatible Atmega 16-U2 - DFR Mega2560

*****DFRduinoMega 2560**** DFRduino Mega2560 is an ATmega2560-based micro-controller that provides full compatibility with #34;Arduino MEGA2560“. It features 54 digital I/O ports, 16 analog signal input ports, 4 UARTs(hardware serial ports), a 16MHz crystal oscillator. The board comes with a bootloader that enables users to download programs directly via a USB. You can simply power it with a USB cable or a standard adapter or use battery as external power. Mega 2560 has 256KB FLASH, two times of Mega1280, which could offer a larger create space for your projects. Specification - Controller Model: ATmega2560 - Operating Voltage: 5V - Input Voltage(VIN): 3-16V(20V max) - Digital I/O Pins: 54 (of which 15 provide PWM output) - Analog Inputs: 16 I/O - FLASH: 256 KB (of which 4 KB used by bootloader) - SRAM: 8KB - EEPROM: 4KB - Frequency: 16MHz *******DFRduino Mega1280******** DFRduino Mega1280 is a microcontroller board based on the ATmega1280. It has 54 digital input/output pins, 16 analog inputs, 4 UARTs (hardware serial ports), a 16 MHz crystal oscillator, a USB connection, a power jack, an ICSP header, and a reset button. Because it has bootloader, it can download programs directly from USB. There is no need to use other external programs to burn. It contains everything needed to support the microcontroller; simply connect it to a computer with a USB cable or power it with an AC-to-DC adapter or battery to get started. The 128KB FLASH space allows it to completely replace the Arduino MEGA2560 in some of its intermediate and lightweight applications. Anyway, this is a cost-effective controller. SPECIFICATION Microcontroller: ATmega1280 Operating Voltage: 5V Input Voltage: 3-16V (20V max) Digital I/O Pins: 54 (of which 14 provide PWM output) Analog Input Pins: 16 I/O Flash: 128 KB of which 4 KB used by bootloader SRAM: 8kb EEPROM: 4kb Frequency :16Mhz