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 "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
DOCUMENTS
- DFRobot Arduino Compatible Microcontroller Selection Guide
- DFRduino Mega 2560 Selection Guide
- Arduino Mega 2560 Website
- Arduino IDE Download
- DFRduino Mega2560 Controller Schematics
SHIPPING LIST
- DFRduino Mega2560 Microcontroller x1
PROJECTS
Project 1. Hyduino - Automated Hydroponics with DFRduino Mega2560
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 that have limited areas in their backyard to grow in.
Hardware list:
- DFRduino Mega2560
- Peristaltic Pumps (2)
- Regular Pump
- pH Electrode Probe and Connection to Arduino
- pH Up/Down Solution
- 5V Relay Modules for Arduino
- 12V Solenoid Valve
- DHT11 or DHT21 or DHT22 Humidity/Temperature Sensor
- Photosensitive Sensor for Arduino
- Breadboard
- Various Wires
- Grow Lights (mine are LED)
- Sockets for Grow Lights
- 3.2" TFT LCD Shield + Touch Screen (usually has an SD card reader on the back of it)
- Water Level Sensor Float Switch (2)
- I2C RTC DS1307 AT24C32 Real Time Clock Module
- 9V and 12V Power Supplies
- Hydroponics Pots (I'm using 10 - 3" pots for this)
- 1" PVC Pipe and Fittings + Drain Pipe and Fittings