Webserver application with W5500 for things (Non-OS)
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  • Embedded Web server module for Things based on W5500 hardwired TCP/IP chip (Non-OS)
  • Provides the firmware & web page examples for user’s customization
  • 16-Configurable Digital I/O, 4-Analog Input, 2-UART Port
  • SD card, Configuration tool, Serial AT command set support

WIZ550web GitHub Page

##Images ###WIZ550web Module

  • 74.4mm(W) x 30mm(L) x 24mm(H) (±0.5)


###WIZ550web Baseboard (Separate purchases)

  • DC 9~24V Power Input
  • Digital Output 8EA (Relay - HR91C-05)
  • Digital Input 8EA (Photocouplers - TLP290-4)
  • Analog Input 4EA
  • RS-232C / RS-422 interface
  • 145mm(W) x 85mm(L) x 28mm(H) (±0.5)

For more details, please refer to WIZ550web Wiki page in WIZnet Wiki.


  • WIZnet W5500 Hardwired TCP/IP chip
    • Hardwired TCP/IP embedded Ethernet controller
    • SPI (Serial Peripheral Interface) Microcontroller Interface
    • Hardwired TCP/IP stack supports TCP, UDP, IPv4, ICMP, ARP, IGMP, and PPPoE protocols
    • Easy to implement the other network protocols
  • ST Microelectronics STM32F103RBT6
    • ARM 32-bit Cortex™-M3 microcontroller running at up to 72MHz
    • 128kB on-chip flash / 20kB on-chip SRAM / Various peripherals
  • Adesto Technologies AT45DB081D-SU
    • 8-Megabit Serial Flash Memory
  • SD Card Slot
  • 2.54mm Pin Header x 2


These are Firmware projects (source code) based on Eclipse IDE for C/C++ Developers (ARM GCC 4.8.3).

Hardware material, Documents and Others

Various materials are could be found at WIZ550web Wiki page in WIZnet Wiki.

  • Documents
    • Getting Started Guide
    • User's Guide (for AT command)
    • Future Plan
  • Technical Reference (Datasheet)
    • Hardware Specification
    • AC/DC Characteristics
    • Reference Schematic & Parts
    • Dimension
  • See also

Revision History

v1.1.0 Develop

  • Jan. 2015
  • History
    • Added the FTP Server feature. (F_APP_FTP)
    • Added the Data Flash feature on FatFs. (F_SPI_FLASH)
    • We support a storage of data flash as well as SD card above v1.1.0 release.
      • You can use one of a SD card and a data flash. The mount priority of a SD card is higher than a data flash.
      • If you wish to use a SD card, you must copy the web page to a SD card and insert a SD card into a slot.
      • If there is no SD card after detecting during about 3 seconds, you can use a data flash.
        • You must have the initialization process of data flash at least once.
        • When SW1 and SW2 are pressed at the same time, the data flash is initialized by FatFs. And reset a target.
        • You must copy the web page to a data flash by FTP client tool.(ALFTP)
        • Refer to WIZ550web+FatFS+FTPServer Project Tutorial. http://youtu.be/XtnT2_CNgaY
        • Refer to WIZ550web+WindowsFTP Tutorial. Need to apply a commit cfce843. http://youtu.be/kelGSGj3kOQ
        • Refer to WIZ550web+LinuxFTP Tutorial. http://youtu.be/6qsPZA5QKEI


  • Jan. 2015
  • History
    • Added the 'Get/Set Interface functions' for easy to customize user's web pages
    • HTTP Server operation stability improvement
    • Modified some comments and fixed some typos


  • First release : Nov. 2014