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RP2040 + W6100 Mini Board

Custom RP2040 mini-board couples Raspberry Pi’s $1 MCU with WIZnet W6100 Ethernet for a palm-sized, IPv4/IPv6-ready IoT platform offering single-chip TCP/IP

Lihan__

Published September 24, 2025

Original author: nexp · South KoreaOriginal source (new tab)

RP2040 + W6100 Mini Board

Project description

Project Overview RP2040’s budget-friendly horsepower meets WIZnet’s feature-rich W6100 to create an ultra-small Ethernet node ideal for embedded web servers, gateways, or industrial sensors. Double-sided component placement and a trimmed 10-pin header shrink the board to roughly the same size as earlier single-chip W6100 SSM modules, yet it now hosts a full MCU. Engineer's LAB Key Features Full IPv4/IPv6 stack in silicon – zero CPU overhead for TCP/UDP, plus MAC+PHY inside W6100. 33 MHz SPI on RP2040 – sustains high-throughput DMA transfers (configurable). Engineer's LAB Tiny 2-layer PCB –…

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