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SSH Stamp: Secure Remote UART Access with W6300-EVB-Pico2

SSH Stamp turns W6300-EVB-Pico2 into a secure UART bridge and improves MACRAW reliability for Embassy.

Grace_Koo

Published August 19, 2026

112 UCC

25 WCC

11 VAR

Original author: brainstormOriginal source (new tab)

SSH Stamp: Secure Remote UART Access with W6300-EVB-Pico2

Components

Hardware components
W6300-EVB-Pico2

WIZnet - W6300-EVB-Pico2

x 1

Project description

SSH Stamp on W6300-EVB-Pico2: A Secure UART Bridge over RP2350 Wired Ethernet Summary SSH Stamp is an open-source project that extends a conventional USB-to-UART debug adapter into an SSH-based remote-access tool. Its W6300-EVB-Pico2 port combines an RP2350 and a W6300 to provide secure remote UART access over wired Ethernet. This is more than a board port. The current design uses the W6300 as a MACRAW Ethernet interface while the Embassy network stack handles DHCP, ARP, TCP, and network timers. It also identifies two MACRAW reliability cases that can be separated into small, reusable…

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