首先检查电路连接，确保所有电线和元件都正确连接。然后使用I2C扫描程序来检查每个OLED SSD1306显示器的地址是否正确。最后，使用代码来初始化并确认两个显示器都被正确配置和使用。

示例代码：

#include 
#include 

#define SCREEN_WIDTH 128
#define SCREEN_HEIGHT 64
#define OLED_RESET -1
#define OLED_ADDR1 0x3C
#define OLED_ADDR2 0x3D

Adafruit_SSD1306 OLED1(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);
Adafruit_SSD1306 OLED2(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);

void setup() {
  Wire.begin();
  Serial.begin(9600);

  // Scan for OLED1
  Wire.beginTransmission(OLED_ADDR1);
  if (Wire.endTransmission() == 0) {
    OLED1.begin();
    OLED1.clearDisplay();
    OLED1.display();
  } else {
    Serial.println("Cannot find OLED1");
  }

  // Scan for OLED2
  Wire.beginTransmission(OLED_ADDR2);
  if (Wire.endTransmission() == 0) {
    OLED2.begin();
    OLED2.clearDisplay();
    OLED2.display();
  } else {
    Serial.println("Cannot find OLED2");
  }

  // Display test
  OLED1.setTextSize(2);
  OLED1.setTextColor(WHITE);
  OLED1.setCursor(0, 0);
  OLED1.println("OLED1 Test");

  OLED2.setTextSize(2);
  OLED2.setTextColor(WHITE);
  OLED2.setCursor(0, 0);
  OLED2.println("OLED2 Test");
  
  OLED1.display();
  OLED2.display();
}

void loop() {
  // Nothing to do here
}