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WIZnet Ethernet HAT

Overview#

WIZnet Ethernet HAT (Hardware Attached on Top) is a Raspberry Pi Pico pin-compatible board that utilizes W5100S and supports both 3.3V & 5V.

Please refer to this link to find more information about W5100S.

  • Raspberry Pi Pico Pin-Compatible
  • Ethernet (W5100S Hardwired TCP/IP CHIP)

Features#

  • Includes W5100S
    • Supports Hardwired Internet Protocols: TCP, UDP, WOL over UDP, ICMP, IGMPv1/v2, IPv4, ARP, PPPoE
    • Supports 4 Independent Hardware SOCKETs simultaneously
    • Internal 16 Kbytes Memory for TX/ RX Buffers
  • Operation Voltage 3.3V / 5V
    • Built-in LDO (LM8805SF5-33V)
  • SPI Interface
    • 5V I/O tolerance
  • 10 / 100 Ethernet PHY embedded
  • Supports Auto Negotiation
    • Full / Half Duplex
    • 10 / 100 Based
  • Built-in RJ45 (RB1-125BAG1A)

Hardware Specification#

Pin-out#

WIZnet_Ethernet_HAT_3D_Pinout

Pin Description#

I/OPin NameDescription
PVBUSPower supply, 4.3~5.5 Voltage
P3V3Power supply, 3.3 Voltage
PGNDPower ground
IINTnW5100S Interrupt : Low activity.
IRSTnW5100S Reset : Low activity
ISPI0 TXSPI MOSI (Master Out Slave In)
ISPI0 SCKSPI Clock
ISPI0 CSnSPI Slave Select
OSPI0 RXSPI MISO(Master In Slave Out)

Electrical Specification#

TBA

Technical Reference#

W5100S Datasheet#

Schematic & Part list & Gerber File#

Schematic#

WIZnet_Ethernet_HAT_Schematic

Dimension (Unit : mm)#

21 x 68 x 18 (mm)

WIZnet_Ethernet_HAT_Dimension

Firmware Examples#

Please refer to below links to find firmware example.