Ethernet Shield W5100

Ethernet Shield W5100 สำหรับ Arduino

 

Shield ตัวนี้เสียบกับบอร์ด Arduino จะทำให้สามารถเชื่อมต่ออินเตอร์เน็ตจากภายนอกได้ ผ่านทางช่องสายแลน  มาพร้อมช่องเสียบ SD Card บันทึกข้อมูลที่ต้องการลง SD Card ได้ในตัว รองรับ Arduino Duemilanove (168/328) , Arduino Uno , Arduino Mega(1280/2560) รองรับการใช้ library SD Card

 

Specifications

 

Operating Voltage: 3.8-12V Expansion Board Port: Network Line Port The Arduino Pin Occupancy: SDI Port(D10-D13) Size:75x55x20

 

 

 

Description: The Ethernet Shield allows an Arduino board to connect to the internet. It is based on the Wiznet W5100 ethernet chip providing a network (IP) stack capable of both TCP and UDP. The Arduino Ethernet Shield supports up to four simultaneous socket connections. Use the Ethernet library to write sketches which connect to the internet using the shield.

 

 

 

The latest revision of the shield adds a micro-SD card slot, which can be used to store files for serving over the network. It is compatible with the Arduino UNO and Mega (using the Ethernet library coming in Arduino 0019). An SD card library is not yet included in the standard Arduino distribution.

 

 

 

There is an onboard micro-SD card slot, which can be used to store files for serving over the network. It is compatible with the Arduino Uno and Mega (using the Ethernet library). The onboard microSD card reader is accessible through the SD Library. When working with this library, SS is on Pin 4. The original revision of the shield contained a full-size SD card slot; this is not supported.

 

 

The shield also includes a reset controller, to ensure that the W5100 Ethernet module is properly reset on power-up. Previous revisions of the shield were not compatible with the Mega and need to be manually reset after power-up.

 

 

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 compliant

Low output ripple and noise (100mVpp)

Input voltage range 36V to 57V

Overload and short-circuit protection

9V Output

High efficiency DC/DC converter: typ 75% @ 50% load

1500V isolation (input to output)

NB: the Power over Ethernet module is proprietary hardware not made by Arduino, it is a third party accessory. For more information, see the datasheet

 

The shield does not come with the PoE module built in, it is a separate component that must be added on.

 

Arduino communicates with both the W5100 and SD card using the SPI bus (through the ICSP header). This is on digital pins 11, 12, and 13 on the Duemilanove 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 share 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 shield provides a standard RJ45 ethernet jack.

 

The reset button on the shield resets both the W5100 and the Arduino board.

 

The shield contains a number of informational LEDs:

 

PWR: indicates that the board and shield are powered

LINK: indicates the presence of a network link and flashes when the shield transmits or receives data

FULLD: indicates that the network connection is full duplex

100M: indicates the presence of a 100 Mb/s network connection (as opposed to 10 Mb/s)

RX: flashes when the shield receives data

TX: flashes when the shield sends data

COLL: flashes when network collisions are detected

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.

 

 

 

Arduino Web Server with Ethernet Shield W5100

Arduino Web Sever (อธิบายการทำงานเบื่องต้น)

Arduino Web Sever (ควบคุม LED ด้วย Label)

Arduino Web Sever (ควบคุม LED ด้วย Button)

Arduino Web Sever (ควบคุม LED ด้วย Checkbox)

Arduino Web Sever (using SD Card for Page Links)

Arduino Web Sever (using SD Card for Show image)