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== Using the OLED ==
For both modules it seems that the OLED display is accessible by GPIO5 is SDA, Pin GPIO4 is SCL using this line with the [https://github.com/squix78/esp8266-oled-ssd1306 squix78 ssd1306.h] Library: <pre>SSD1306 display (0x3c, 5, 4);</pre>
Build a Wifi-Scanner with it - find source here: https://github.com/hackffm/ESP32_OLED_WifiScanner
