RobotDyn MEGA2560+W5500 ETH R3 Active PoE Micro SD, Arduino compatible

Product detailed description

RobotDyn MEGA2560+W5500 ETH R3 Active PoE Micro SD, Arduino compatible

RobotDyn MEGA 2560 ETH R3 is the best choice for devices with network access or for multi-functional data collection.

Details

If you plan to build an internet connected device, RobotDyn MEGA 2560 ETH R3 with LAN and Wi-Fi connection, it is best to use Arduino Mega 2560 R3 and W5500 Ethernet controller and ESP-01 Wi-Fi module.

RobotDyn MEGA 2560 ETH R3 is a device equipped with network connection via LAN or WIFI. Depending on your use, it can function as a server or as a member of a network. When the board is used as a server, it can receive requests from other devices and services on the local network or the Internet and respond or reply accordingly. If you use the board as a network member, the RobotDyn MEGA 2560 ETH R3 can collect data from other devices or industrial equipment and send it over the local network or the Internet. It can also receive data from the local network or the Internet and control connected devices and equipment. RobotDyn The MEGA 2560 ETH R3 can also function as a standalone unit providing an autonomous response based on a defined algorithm in response to network changes or other triggers.

RobotDyn MEGA 2560 ETH R3 includes 5 devices on one board:

• Mega 2560 based on ATmega with 70 I/O.
• Ethernet controller based on WizNet W5500 TCP/IP.
• Active (intelligence) PoE.
• Module for Micro SD card.
• Another Wi-Fi module ESP-01 based on the ESP8266 microcontroller.

Ports and buses

RobotDyn MEGA 2560 ETH R3 has 70 inputs/outputs of which 12 can be used as PWM and 16 analog ports with 10-bit resolution (0 – 1023). The board is equipped with RJ45, micro USB, DC power connector and reset button.

W5500 Ethernet

WizNet W5500 is a LAN Ethernet module with integrated TCP/IP. Provides TCP/IP Stack, 10BaseT/100BaseTX Ethernet with full duplex or half duplex, MAC and PHY. The W5500 uses the highly efficient SPI protocol, with an 80 MHz clock for high-speed connectivity with the Atmega 2560. To save power, the W5500 provides WOL (Wake on LAN) and shutdown modes.

ESP-01 Wi-Fi

On the board we find a socket for connecting the Wi-Fi ESP-01 module. The Wi-Fi module connects to the Serial3 interface via RX3(D15)/TX3(D14) I/O.

To use the Wi-Fi module, the Serial3 port must be used in the code.

Micro-SD card reader

On the board we also find a slot for a Micro SD card. The card can be used to store data that can later be transferred over the network. The digital port D4 (CS-CS2) on the ATmega2560 is designed to work with micro SD card. The D9 port is used to detect the card, but you can cut off the solder pads to disable this feature.

** Digital port D10 (SS-CS2) is used by WizNet W5500. The Ethernet controller and the microSD card are connected via the SPI bus.

Programming in Arduino IDE

RobotDyn MEGA 2560 ETH R3 can be programmed via Arduino IDE. Select Arduino Mega 2560 in Tools/Development Board and use the Ethernet3 / Ethernet4 library.

Power

RobotDyn MEGA 2560 ETH R3 can be powered via:

• USB port (5V, 500mA);
• DC-IN connector, PWC 2.1 mm, (supports DC input voltage 7-24V);
• Using a network cable with PoE (Power over Ethernet) - requires an activated switch or PoE injector
• Active PoE is compatible with 802.3af or 802.3at. PoE will check the incoming power and if it does not meet the requirements of the device, it will simply not turn on.

Included in delivery:

• 1pc RobotDyn MEGA2560+W5500 ETH R3 Active PoE Micro SD, Arduino compatible

Remark:

• This product is not a standalone functional unit and may require professional installation.
• Product images are for illustration purposes only and may sometimes differ from the actual appearance of the item. However, this does not change its basic properties.
• W5500 and SD communicate with ATmega32U4 via SPI bus. Pin 10 and pin 4 are the chip selections for the W5500 and SD. They cannot be used as general I/O.

Sources:

• Let's start with Arduino
• ATmega2560 Datasheet
• W5500 Datasheet
• Diagram
• Pinout
• Arduino Lib Ethernet3
• MCU-PRO Library
• Arduino IDE
• Wiring with Processing IDE (reference) Multiplatform development environment (Win/Linux/Mac/...)