Thanks I have tried with SSD1306 and test is OK

Good idea but same error with delay(1000); at begin of setup

Unable to configure ESP32-WROOM-30 in I2C master mode with Wire.begin(2, 4)

My code is OK with Wire.begin(14, 15) or Wire.begin(21, 22)
Thanks in advance https://gelit.ch/

#include <Wire.h> // I2C library
#include <SparkFunSX1509.h> // http://librarymanager/All#SparkFun_SX1509
#define I2C_SDA 2 ...