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Tags: Arduino Ethernet Shield, PoE, Arduino Uno, Arduino Mega 2560, Arduino NANO, Network, SD Card
Description:The Arduino Ethernet Shield R3 allows an Arduino board to connect to the internet. It is based on the Wiznet W5100ethernet chip. The Wiznet W5100 provides a network (IP) stack capable of both TCP and UDP. It supports up to four simultaneous socket connections. Use the Ethernet library to write sketches which connect to the internet using the shield. The ethernet shield connects to an Arduino board using long wire-wrap headers which extend through the shield. This keeps the pin layout intact and allows another shield to be stacked on top.Arduino communicates with both the W5100 and SD card using the SPI bus (through the ICSP header). This is on digital pins 10, 11, 12, and 13 on the Uno and pins 50, 51, and 52 on the Mega. On both boards, pin 10 is used to select the W5100 and pin 4 for the SD card. These pins cannot be used for general I/O. On the Mega, the hardware SS pin, 53, is not used to select either the W5100 or the SD card, but it must be kept as an output or the SPI interface won't work.Note that because the W5100 and SD card shares the SPI bus, only one can be active at a time. If you are using both peripherals in your program, this should be taken care of by the corresponding libraries. If you're not using one of the peripherals in your program, however, you'll need to explicitly deselect it. To do this with the SD card, set pin 4 as an output and write a high to it. For the W5100, set digital pin 10 as a high output.The reset button on the shield resets both the W5100 and the Arduino board. The Ethernet Shield R3 has a standard RJ-45 connection, with an integrated line transformer and Power over Ethernet enabled.There is an onboard micro-SD card slot, which can be used to store files for serving over the network. It is compatible with all the Arduino/Genuine boards. The onboard micro SD card reader is accessible through the SD Library. When working with this library, SS is on Pin 4.
Features:The current shield has a Power over Ethernet (PoE) module designed to extract power from a conventional twisted pair Category 5 Ethernet cable:IEEE802.3af compliantLow output ripple and noise: 100mVppInput voltage range: 36~57VOverload and short-circuit protectionOutput: 9vHigh efficiency DC/DC converter: typ 75% @ 50% loadisolation (input to output): 1500VThe shield contains a number of informational LEDs:PWR: indicates that the board and shield are poweredLINK: indicates the presence of a network link and flashes when the shield transmits or receives dataFULL: indicates that the network connection is full duplex100M: indicates the presence of a 100 Mb/s network connection (as opposed to 10 Mb/s)RX: flashes when the shield receives dataTX: flashes when the shield sends dataCOLL: flashes when network collisions are detected
Note:The solder jumper marked "INT" can be connected to allow the Arduino board to receive interrupt-driven notification of events from the W5100, but this is not supported by the Ethernet library. The jumper connects the INT pin of the W5100 to digital pin 2 of the Arduino.
Package Include :1X W5100 Arduino Ethernet Shield
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