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W55RP20-S2E TCP/UDP Loopback example (Micropython)

This example demonstrates data loopback on W55RP20 S2E via UART/SPI using MicroPython on a Raspberry Pi Pico (Master)

Grace_Koo

Published February 03, 2026

112 UCC

25 WCC

11 VAR

W55RP20-S2E TCP/UDP Loopback example (Micropython)

Components

Hardware components
W55RP20-EVB-Pico

WIZnet - W55RP20-EVB-Pico

x 1

Software Apps and online services
MicroPython

micropython - MicroPython

x 1

Project description

How to Data Loopback Example (MicroPython) This program demonstrates data loopback applications using the W55RP20 S2E board via UART or SPI interface. The Raspberry Pi Pico (Host) configures the W55RP20 S2E as a TCP Client, TCP Server, or UDP node using AT commands, and then enters Data Mode to echo back any data received from the PC. Step 1: Prepare software The following software is required to run and test the MicroPython example. Thonny : An integrated development environment for MicroPython. used to write, upload, and run code. Hercules : A serial terminal tool capable of TCP/UDP socket…

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