> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt

# 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.

## How to buy

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- **Checkout** is completed on-site and includes a captcha at the payment step. Share the cart link; checkout takes it from there.
- **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works)
- **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt
## 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)