if (controlboard == 0) {    //need code to powersave display
    ControlError();
  }
  if (controlboard == 1) {
    DisplayIdle();
  }

void ControlError() {
  if (error = 0) {
    oled.clearBuffer();
    error = 1;
    idle = 0;
  }
  else {
    oled.setFont(u8g2_font_helvB14_tf);
    oled.setFontPosTop();
    oled.drawStr(25, 1, "Warning:");
    oled.drawStr(31, 25, "Control");
    oled.drawStr(34, 49, "Offline");
    oled.sendBuffer();
  }
}

void DisplayIdle() {
  if (idle == 0) {
    oled.clearBuffer();
  }
  else {
    oled.setFontPosTop();
    oled.setFont(u8g2_font_helvB14_tf);
    oled.drawStr(44, 2, "Wifi");
    oled.drawStr(1, 23, "Dishwasher");
    oled.drawStr(42, 45, "v1.0");
    oled.sendBuffer();
    //CheckSignal();
  }
}