WIZnet

Still sitting.
Lights off?

That is one of the most annoying smart home automation problems.

Traditional motion sensors see movement.
mmWave presence sensors can detect presence even when someone is sitting still, working, reading, or lying down.

Sensy-One E1 Pro Multi Sense is a Home Assistant-focused presence sensor with PoE / Ethernet, Wi-Fi option, light / UV sensing, optional CO₂ / air-quality add-ons, and camera-free local automation.

WIZnet Maker angle:
a W5500 Ethernet configuration is highlighted for stable wired connectivity in fixed PoE sensor installations.

Links are in the first comment.

Home Assistant users:
Where do motion sensors fail most — desk, bathroom, bedroom, hallway, or kitchen?

The RJ45 port is not just a port.

It is the module.

Usually, adding Ethernet means thinking about the RJ45 connector, Ethernet controller, networking firmware, MAC address handling, configuration, and PCB space.

WIZ-IP20 compresses that into a compact MAG-JACK form factor Serial-to-Ethernet module:
UART/SPI in,
10/100 Ethernet out,
unique MAC address included.

Product link is in the first comment.

When adding Ethernet to an existing device, what usually hurts most — PCB layout, firmware, MAC handling, or field configuration?

One MCU for the driver.
One MCU for the data.

This track-car build uses a CrowPanel ESP32-S3 for the cabin dash, while a Teensy 4.1 handles telemetry in the trunk — GPS, tach, logging, and a W5500 wired network path.

That split is the interesting part:
the screen stays responsive,
the telemetry stays focused.

Project link is in the first comment.

Would you build a race dash like this with 2 MCUs, or try to keep it all on one board?

Wi-Fi is great.
Some Pico projects still need a cable.

Raspberry Pi featured WIZnet W6300-EVB-Pico2 in its Maker Monday roundup of RP2350-based boards.

The interesting part:
it is not “another wireless dev board.”
It is an RP2350 board built for wired Ethernet projects where reliability, security, and speed matter.

Project ideas mentioned in the article include low-power web servers, network monitoring, IoT data logging, and industrial devices.

Article link is in the first comment.

Would you choose Wi-Fi or Ethernet for your next Pico project?

First comment:
Raspberry Pi Maker Monday article:
https://www.raspberrypi.com/news/maker-monday-some-of-the-best-rp2350-based-boards/

WIZnet W6300-EVB-Pico2 is featured as an RP2350-based board for projects requiring a wired network connection.
Raspberry Pi

Maker Monday: Some of the best RP2350-based boards - Raspberry Pi Raspberry Pi’s RP2350 microcontroller chip is the brains of Raspberry Pi Pico 2 and a host of third-party boards.

Your firmware already works.
Don’t rewrite it just to add Ethernet.

WIZ-IP20 is a compact Serial-to-Ethernet module for devices that need a wired network path without turning the firmware into a networking project.

UART up to 921 kbps.
10/100 Ethernet.
TCP / UDP, MQTT / MQTTS, and Modbus modes.

Product link is in the first comment.

Where would you use this first:
legacy machines, sensors, kiosks, or test gear?