W5100 Ethernet module

SKU: FA1013-2 Tag:

$10.82

Weight 0.020 kg
Dimensions 5.16 × 2.98 cm
Support Hardwired TCP/IP Protocols:

TCP, UDP, ICMP, IPv4 ARP, IGMP, PPPoE, Ethernet

Ethernet PHY

10BaseT/100BaseTX Ethernet PHY embedded

Auto-Negotiation

Support Auto-Negotiation (Full-duplex and half-duplex)

Auto MDI/MDIX

Support Auto MDI/MDIX

ADSL connection

Support ADSL connection (with support PPPoE Protocol with PAP/CHAP Authentication mode)

independent sockets simultaneously

Supports 4 independent sockets simultaneously

Memory

Internal 16Kbytes Memory for Tx/Rx Buffers

CMOS technology

0.18 µm

Voltage

3.3 V operation with 5 V I/O signal tolerance

Serial Peripheral Interface

Support Serial Peripheral Interface(SPI MODE 0, 3)

200 in stock

The W5100 is a full-featured, single-chip Internet-enabled 10/100 Ethernet controller designed for embedded applications where ease of integration, stability, performance, area, and system cost control are required. The W5100 has been designed to facilitate the easy implementation of Internet connectivity without OS. The W5100 is IEEE 802.3 10BASE-T and 802.3u 100BASE-TX compliant.

The W5100 includes fully hardwired, market-proven TCP/IP stack and integrated Ethernet MAC & PHY. Hardwired TCP/IP stack supports TCP, UDP, IPv4, ICMP, ARP, IGMP, and PPPoE which has been proven in various applications for several years. 16Kbytes internal buffer is included for data transmission. No need for consideration for handling Ethernet Controller, but simple socket programming is required.

Features:

  • Support Hardwired TCP/IP Protocols: TCP, UDP, ICMP, IPv4 ARP, IGMP, PPPoE, Ethernet
  • 10BaseT/100BaseTX Ethernet PHY embedded
  • Support Auto-Negotiation (Full-duplex and half-duplex)
  • Support Auto MDI/MDIX
  • Support ADSL connection (with support PPPoE Protocol with PAP/CHAP Authentication mode)
  • Supports 4 independent sockets simultaneously
  • Not support IP Fragmentation
  • Internal 16Kbytes Memory for Tx/Rx Buffers
  • 0.18 µm CMOS technology
  • 3.3 V operation with 5 V I/O signal tolerance
  • Support Serial Peripheral Interface(SPI MODE 0, 3)

The Module has a 2×5 pin header.

  • V+ This is a 5 Volt pin
  • Ground: There are two
  • NSS: This is your ‘chip select’. Usually it connects to D10 on the Arduino
  • RST: This is your Reset pin. It should not be connected to your Arduino
  • MO: This is your MOSI it must connect to the MISO pin of your arduino (D12)
  • SOK: This is your Clock pin. It should connect to the SCK pon of your Arduino (D13)
  • MI: This is your MISO, it must connect to the MOSI of your Arduino (D11)
  • POE – & POE+: These are your PowerOverEthernet pins. However, they are not the standard PoE connection, as they derive from pins 7&8 on your RJ45 jack

Though many people nowadays will choose an ESP8266 if they want Ethernet connectivity, there might be reasons why you’d still want a cable connection between an Arduino and your router. The Ethernetshield can easily do that for you, but if you have an Arduino Nano, or a Promini, an Ethernetshield is not the best choice, save that for your UNO or Mega.
For a Promini or Nano, a small Ethernet module is the better choice.
There are plenty of ENC28J60 modules available. They are easy to use, most likely work right out of the chinese webstore box, but the ENC28J60 is a bit memory greedy as it has to build its stack in Software.
The better choice is a W5100 module as that leaves more memory for your program.

A popular one is the Funduino W5100 module, but it can be a bit tricky to use.
If you look at a modern Ethernetshield and then look at the Funduino W5100 module (circuit), it is immediately clear that the former packs more components than the latter, and you will find out there is a good reason for that.

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