Olimex Support Forum

Microcontrollers => ESP32 => Topic started by: KeviNH on November 06, 2025, 10:22:41 PM

Title: ESP32-POE problems on just UEXT pins?
Post by: KeviNH on November 06, 2025, 10:22:41 PM
Has anybody seen an issue where Post in UEXT subforum (https://www.olimex.com/forum/index.php?topic=9929.0)? 

Specifically we are using a ESP32-POE-16MB, connecting to Serial1 (on GPI36) via the UEXT, and in a deployed device it became unreliable sporadically,then yesterday just stopped working entirely.    A multimeter shows no continuity between the board edge EXT for GPI36 and the corresponding pin on the UEXT.

Not seeing any physical reason for this fault, no unusual mechanical stress on the ESP32-POE-16MB board.