# WIZnet W5100S Ethernet HAT for Raspberry Pi Pico

**Type:** Product page · **SKU:** CE08655 · **Brand:** [Core Electronics](https://core-electronics.com.au/brands/core-electronics-australia)
**Page:** https://core-electronics.com.au/wiznet-w5100s-ethernet-hat-for-raspberry-pi-pico.html ([markdown](https://core-electronics.com.au/wiznet-w5100s-ethernet-hat-for-raspberry-pi-pico.html.md))

Add ethernet connectivity to your projects with this Pico compatible shield!

> ⚠ Deal is for shelf stock only — any additional stock will be at the normal price.

## Pricing

- **Price:** $8.59 (inc GST) — $7.81 AUD, exc GST

## Availability & dispatch

- In stock, ships same business day if ordered before 2PM (Australia/Sydney).
- We can dispatch 49 today; more stock is typically available with a 8–14 day lead time.

## Description

Add ethernet connectivity to your projects with this Pico compatible shield, featuring the WIZnet W5100S TCP/IP ethernet controller.

**Note:** Soldering is required to attach the included headers for connection to your Pico.

### Features

- Pin compatible with the Raspberry Pi Pico
- 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
- Flexible Operating Voltage 
    - Built-in regulator allows power supply of 4.3~5.5V or power the 3.3V rail directly
- SPI Interface 
    - 5V I/O tolerance
- 10 / 100 Ethernet PHY embedded
- Supports Auto Negotiation 
    - Full / Half Duplex
    - 10 / 100 Based
- Built-in RJ45 connector
 
### Pin Usage

 | I/O | Pin Name | Description |
|---|---|---|
| Power | VBUS | Power supply, 4.3~5.5 Voltage |
| Power | 3V3 | Power supply, 3.3 Voltage |
| Power | GND | Power ground |
| Input | INTn | W5100S Interrupt : Low activity. |
| Input | RSTn | W5100S Reset : Low activity |
| Input | SPI0 TX | SPI MOSI (Master Out Slave In) |
| Input | SPI0 SCK | SPI Clock |
| Input | SPI0 CSn | SPI Slave Select |
| Output | SPI0 RX | SPI MISO(Master In Slave Out) |

### Resources

[Documentation](https://docs.wiznet.io/Product/Open-Source-Hardware/wiznet_ethernet_hat)

#### Firmware examples

- [C/C++ Examples](https://github.com/Wiznet/RP2040-HAT-C)
- [CircuitPython Examples](https://github.com/Wiznet/RP2040-HAT-CircuitPython)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/C/E/CE08655-1.jpg)