WIZnet Ethernet HAT[RP2040] + SNTP

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)
• Product page : https://docs.wiznet.io/Product/iEthernet/W5100S/overview
• Support 4 Independent Hardware SOCKETs simultaneously
• Support SOCKET-less new Command: ARP-Request, PING-Request
• Support Auto-MDIX only when Auto-Negotiation mode

 

 

 

RP2040 Datasheet – https://www.raspberrypi.org/documentation/microcontrollers/raspberry-pi-pico.html

 

Prepare

Prepare Hardware

1.Combine WIZnet Ethernet HAT with Raspberry Pi Pico.

2.Connect ethernet cable to Ethernet HAT ethernet port.

3.Connect Raspberry Pi Pico to desktop or laptop using 5 pin micro USB cable.

– If you use W5100S-EVB-Pico, you can skip ‘1. Combine…’

Prepare Software

Installing CircuitPython

Install CircuitPython on Raspberry Pi Pico by referring to the link above.

https://learn.adafruit.com/getting-started-with-raspberry-pi-pico-circuitpython/circuitpython

• Download the below uf2 file link on your computer

CircuitPython 7.0.0 – https://downloads.circuitpython.org/bin/raspberry_pi_pico/en_US/adafruit-circuitpython-raspberry_pi_pico-en_US-7.0.0.uf2

Setup WIZnet Ethernet Library

Copy the WIZnet library Into the lib folder inside the Raspberry Pi Pico. https://learn.adafruit.com/ethernet-for-circuitpython/circuitpython-setup

Before continuing, make sure your board’s lib folder has at least the following files and folders copied over: https://github.com/Wiznet/RP2040-HAT-CircuitPython

adafruit_bus_device

adafruit_wiznet5k

 

 

Run PICO

Before this, you should find the Raspberry Pi Pico COM port number from “Device Manager” on your PC.

 

How to SNTP Example

Setup SNTP Example

Press “Ctrl+D” on the terminal window. you can see the messages as follows.