Adafruit_SH110X.h does not work with Adafruit_BME280

[BioFabLab]

• Arduino board: Arduino uno

• Arduino IDE version (found in Arduino -> About Arduino menu): IDE 2.3.3

• List the steps to reproduce the problem below (if possible attach a sketch or
  copy the sketch code in too):
  Adafruit_SH110X.h does not work with Adafruit_BME280 and has isues with serial.print

I'm changing disply driver from Adafruit_SSD1306.h to Adafruit_SH110X.h

My code (which is still a wrok in progress) workes just fine with Adafruit_SSD1306.h but changing to Adafruit_SH110X.h I run into multiple problems.

In Adafruit_BME280 there is this sensor conection cheek.

bool status;
status = bme.begin();
if (!status) {
Serial.println("Could not find a valid BME280 sensor, check wiring or sencor I2C addres!"); //If this text to long Adafruit_SH110X.h dies
while (1);
}

If the Serial.println text is short the splash screen from Adafruit_SH110X.h flickers and the program continues but If the Serial.println text is to long the program gets stuck on the splach screen even thoug it's not printing that line.

I found a hint for one of the problems in a forum: you must not use serial.print within I2C configurations,
because I2c and serial both use interrupts and so get in conflict.
https://forum.arduino.cc/t/uno-with-bme280-and-oled-1106-loop-stops-when-using-bme-readpressure/1035419/5

When trying to read the values from the BME my program chrashes and I get a glitchy screen.

c_vac = (bme.readPressure() / 1000.0F); //If I use this Adafruit_SH110X.h dies
temp = bme.readTemperature(); //If I use this Adafruit_SH110X.h dies

Here's my code:
Sorry for the mess work in progress

#include <SPI.h>
#include <Wire.h>
#include <Adafruit_Sensor.h>
#include <Adafruit_BME280.h>
#include <Adafruit_GFX.h>
//#include <Adafruit_SSD1306.h> // OLED Driver
#include <Adafruit_SH110X.h>
#include <EEPROM.h> // EEPROM is a memory whose values are kept when the board is powered off.
#define TIMEOUT 3000 // Set timer for Return to main screen
#define UPDATE_SERIEL 3000 // Set timer for seriel update

/* Uncomment the initialize the I2C address , uncomment only one, If you get a totally blank screen try the other*/
//#define i2c_Address 0x3c //initialize with the I2C addr 0x3C Typically eBay OLED's
//#define i2c_Address 0x3d //initialize with the I2C addr 0x3D Typically Adafruit OLED's

#define SCREEN_WIDTH 128 // OLED display width, in pixels
#define SCREEN_HEIGHT 64 // OLED display height, in pixels
#define OLED_RESET -1 // QT-PY / XIAO
Adafruit_SH1106G display = Adafruit_SH1106G(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);

int temp = 0; // Temp

int irset = 0; // IR xx%
int vacset = 0; // Vacuum
int fanset = 0; // Fan temp set
int on_time = 0; // Time

int c_vac = 0; // curent Vacuum
int c_fanset = 0; // curent Fan on Temp
int c_on_time = 0; // curent Time

int hh=0, mm=0, ss=0;

int newinput = 0;
int oldinput = 0;
int state = 0;
uint32_t timeout; // Return to main screen
uint32_t update_seriel;

int on_hh=0, on_mm=0; // On Timer

Adafruit_BME280 bme; // I2C

void setup() {

pinMode(0, INPUT_PULLUP); // Analg A0/D0 TEMP MCP9700

pinMode(3, OUTPUT); // D2/GPIO4 IR PWM
pinMode(5, OUTPUT); // D3/GPIO5 VAC PWM
pinMode(6, OUTPUT); // D6/GPI21 FAN PWM

pinMode(4, INPUT_PULLUP); // + Button
pinMode(8, INPUT_PULLUP); // Select Button
pinMode(12, INPUT_PULLUP); // - Button

Serial.begin(9600);
Serial.println(F("Connecting"));

delay(250); // wait for the OLED to power up
display.setRotation(2); // Rotate disp 180
display.begin(0x3c, true); // Address 0x3C default
display.setContrast (0); // dim display
display.display();
delay(500);
display.clearDisplay(); // Clear the buffer.

display.setTextSize(2);
display.setTextColor(SH110X_WHITE);

bool status;
status = bme.begin();
if (!status) {
// Serial.println("Could not find a valid BME280 sensor, check wiring or sencor I2C addres!"); //If this text to long Adafruit_SH110X.h dies
while (1);
}

timeout = millis() + TIMEOUT; // Return to main screen function
update_seriel = millis() + UPDATE_SERIEL;
}

void main_screen() { // Main status screen. State 0

display.clearDisplay(); // Clear the buffer.
display.setCursor(0, 0);
display.print(irset);
display.println("%");
display.print(c_vac);
display.println(" kPa");
display.print(temp);
display.println("C");
display.print(c_on_time);
display.println("HH:MM");
display.display();
}

void IRset(char* captione, int val) {

display.clearDisplay(); // Clear the buffer.
display.setCursor(0, 0);
display.println("IRset");
display.print(val);
display.println("%");
analogWrite(3, irset); // PMW out
display.display();
}

void VacSet(char* captione, int val, int vacset) {

display.clearDisplay(); // Clear the buffer.
display.setCursor(0, 0);
display.println("VacSet");
display.println(val);
analogWrite(5, vacset); //////////////////////////// Skal reguleres med c_vac
display.display();
}

void FanSet(char* captione, int val, int curent) {

display.clearDisplay(); // Clear the buffer.
display.setCursor(0, 0);
display.println("FanSet");
display.println(val);
display.println(curent);
display.display();
}

void OnTimeSet(char* captione, int val, int curent) {

display.clearDisplay(); // Clear the buffer.
display.setCursor(0, 0);
display.println("OnTimeSet");
display.println(val);
display.println(curent);
display.display();
}

void loop() {

// c_vac = (bme.readPressure() / 1000.0F); //If i use this Adafruit_SH110X.h dies
// temp = bme.readTemperature(); //If i use this Adafruit_SH110X.h dies

int input = 0;
if (digitalRead(4) == LOW) { // Read + Button
input = 1;
} else if (digitalRead(8) == LOW) { // Read Select Button
input = 2;
} else if (digitalRead(12) == LOW) { // Read - Button
input = 3;
}

if (millis() > timeout) {
state = 0;
timeout = millis() + TIMEOUT;
main_screen();
}

if (input != oldinput) {
newinput = input;
delay(10);
timeout = millis() + TIMEOUT;
}
oldinput = input;

if (millis() > update_seriel) {
update_seriel = millis() + UPDATE_SERIEL;
Serial.print("IR Intensity:");
Serial.print(irset);
Serial.print("%, ");
Serial.print("Vacuum:");
Serial.print(c_vac);
Serial.print("mBar, ");
Serial.print("Temp:");
Serial.print(temp);
Serial.print("°C,");
Serial.print("On time:");
Serial.print(c_on_time);
Serial.println("HH:MM");
}

switch (state) {

case 0:  // Main status screen

  if (newinput == 2) {
    IRset("Set IR%", irset);
    state = 1;
  }
  break;
case 1:  // Set IR light intensity

  if (newinput == 1) {
    irset += 5;
    if (irset > 100) {irset = 0;}    // Loop de hoop
    IRset("Set IR%", irset);
  }
  if (newinput == 3) {
    irset -= 5;
    if (irset < 0) {irset = 100;}    // Loop de hoop
    IRset("Set IR%", irset);
  }
  if (newinput == 2) {
    VacSet("Set Vac", vacset, c_vac);
    state = 2;
  }
  break;
case 2:  // Set vacuum

  if (newinput == 1) {
    vacset += 10;
      if (vacset > 400) {vacset = 0;}   // Loop de hoop
    VacSet("Set Vac", vacset, c_vac);
  }
  if (newinput == 3) {
    vacset -= 10;
    if (vacset < 0) {vacset = 400;}   // Loop de hoop
    VacSet("Set Vac", vacset, c_vac);
  }
  if (newinput == 2) {
    FanSet("Set Fan T", fanset, c_fanset);
    state = 3;
  }
  break;
case 3:  // Set max temp for fan to start

  if (newinput == 1) {
    fanset++;
     if (fanset > 12) {fanset = 0;}   // Loop de hoop
    FanSet("Set Fan T", fanset, c_fanset);
  }
  if (newinput == 3) {
    fanset--;
     if (fanset < 0) {fanset = 12;}   // Loop de hoop
    

    FanSet("Set Fan T", fanset, c_fanset);
  }
  if (newinput == 2) {
    OnTimeSet("Set Time", on_time, c_on_time);
    state = 4;
  }
  break;

case 4:  // Set desired on time

  if (newinput == 1) {
    on_hh++;
    OnTimeSet("Set Time", on_hh, on_mm);
  }
  if (newinput == 3) {
    on_hh--;
    OnTimeSet("Set Time", on_hh, on_mm);
  }

  if (newinput == 2) {
        if (newinput == 1) {
    on_mm+=5;
    OnTimeSet("Set Time", on_hh, on_mm);
  } 
  if (newinput == 3) {
    on_mm-=5;
    OnTimeSet("Set Time", on_hh, on_mm);
  }}
  if (newinput == 2) {
    main_screen();
    state = 0;
  }
  break;

}
}