The new version of DFRduino Mega2560 has improved the VIN power supply circuit by changing the easily overheat LDO to DC-DC circuit for ensuring the safety and reliability in long-term use.
In addition to optimizing the overheating issue, it offers a wider input voltage range. What’s more, DFRduino Mega2560 can work steadily even when only powered by 3.7V lithium battery.
DFRduino Mega2560 is an ATmega2560-based micro-controller that provides full compatibility with the Arduino MEGA2560. It features 54 digital I/O ports, 16 analogue 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.
Mega2560 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
Projects
Project 1: Hyduino - Automated Hydroponics with an Arduino
Hydroponics is growing plants without the use of a traditional dirt medium by using a nutrient-rich water solution. This is especially great for those people who have limited areas in their backyard to grow in.
