Arduino Uno R4 Minima with DFR0850 On Ide 2.3

Interesting. Since the same crash occurs across multiple ESP32 boards, I'd be inclined to suspect a compatibility issue between the SEN0691 component and ESPHome 2026.5.3 rather than a hardware fault.

Have you tried a minimal ESPHome configuration with only the logger, WiFi, and SEN0691 enabled? It would also be useful to know whether the same sensor works correctly using a simple Arduino example outside of ESPHome. That could help isolate whether the issue is in the driver or the ESPHome integration itself.

It may be worth trying the latest official Ethernet library from Arduino Library Manager. Also, try removing the E-RST jumper from D11/D12, since those pins are used by SPI on the UNO R4 Minima.

Then initialize the W5500 with:

Ethernet.init(10); 

Ethernet.begin(mac, ip);

After removing the jumper, fully power-cycle the boards and test again.

I'm looking for this as well.