Thanks for this article.
I just tried to test this board with drawingdemo and other samples but no success. Compilation ends with the same error in any cases: "C:UsersGaborDocumentsArduinolibrariesESP8266_and_ESP32_OLED_driver_for_SSD1306_displayssrc/SSD1306Wire.h: In constructor 'SSD1306Wire::SSD1306Wire(uint8_t, int, int, OLEDDISPLAY_GEOMETRY, HW_I2C, int)':
C:UsersGaborDocumentsArduinolibrariesESP8266_and_ESP32_OLED_driver_for_SSD1306_displayssrc/SSD1306Wire.h:79:51: error: 'Wire1' was not declared in this scope
this->_wire = (_i2cBus==I2C_ONE) ? &Wire : &Wire1;
exit status 1"
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