I wanted to connect a DHT22, an OLED display to a Nano and transfer the whole thing to a gateway with RS485 wire.
The display doesn't show anything as soon as I include the mysesnsors.h library.
I just made a sample sketch for it.
MySensors version is currently 2.3.1
I've tried everything, but I can't do it.

// Enable debug prints
#define MY_DEBUG

// Enable RS485 transport layer
#define MY_RS485

// Define this to enables DE-pin management on defined pin
#define MY_RS485_DE_PIN 2

// Set RS485 baud rate to use
#define MY_RS485_BAUD_RATE 9600

// Enable this if RS485 is connected to a hardware serial port
//#define MY_RS485_HWSERIAL Serial1

#define MY_NODE_ID 4
#include <SPI.h>
#include <MySensors.h> 
#include <Wire.h>
  
#include <SSD1306_text.h>

#define OLED_RST 4
SSD1306_text oled(OLED_RST);




void setup()
{

  oled.init();
  oled.clear();                 // clear screen

  oled.setTextSize(1, 1);
  oled.setCursor(0);
  oled.print("OK");
}


void loop()      
{  

  
}