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  • Writer's pictureWIZnet Co., Ltd.

W5100S-EVB-Pico with the Arduino IDE

Updated: Apr 6, 2022

The W5100S-EVB-Pico has the same role as the Raspberry Pi Pico platform and includes W5100S, so the Ethernet function is basically included.

It is easy to use an Arduino IDE with W5100S-EVB-Pico.

The W5100S-EVB-Pico is a microcontroller evaluation board based on the Raspberry Pi RP2040 microcontroller chip and a full hardwired TCP/IP controller W5100S chip.

I used Arduino-Pico of Mr. Philhower. It's useful for me, who doesn't know well python.


I added the URL in the "Additional Boards Manager URLs" field and searched pico in Board Manager to add.



Then, I choose the Board as a Raspberry Pi Pico.


I can run a Blink without any problem.



However, I should add a WIZnet Ethernet Library. Because the official Ethernet Library is not supporting W5100S yet. It is pending now.

But it is easy to use WIZnet Ethernet Library too.

Go to WIZnet Arduino Ethernet git repository, download and extract to user library directory as a name Ethernet.



And one more thing, I should add a init function(to set nCS) to use W5100S-EVB-Pico's ethernet.

The GPIO17 is an nCS pin of W5100S.

Then, the example worked well.



So, there are two things to need to use W5100S-EVB-Pico.

1. Download WIZnet Arduino Ethernet to user library directory.
2. Set nCS.

It's all.



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