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How to Build a Networked Serial Console with WIZnet W5100S on Raspberry Pi Pico?

PICOTTY turns Raspberry Pi Pico or Pico 2 boards into networked serial-console nodes for headless computers.

viktor

Published August 17, 2026

Original author: morpheuslordOriginal source (new tab)

How to Build a Networked Serial Console with WIZnet W5100S on Raspberry Pi Pico?

Components

Hardware components
WIZnet Ethernet HAT

x 1

Project description

Summary PICOTTY turns Raspberry Pi Pico or Pico 2 boards into networked serial-console nodes for headless computers. Each node presents USB HID keyboard and CDC serial interfaces to its target while a WIZnet W5100S provides an independent SPI Ethernet path to a central management hub. The result is browser-based console access, keyboard injection, automation, monitoring, and recovery without requiring a BMC or video-capture device. What the Project Does PICOTTY uses a star topology. Every managed computer receives one Pico-based node, connected to the computer by USB and to a management…

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