Show DHT11 on an OLED

#include "n32g031.h"
#include "n32g031_gpio.h"
#include "n32g031_rcc.h"
#include "core_cm0.h"
#include "dht11.h"
#include "oled.h"
#include "utils.h"
#include <stdio.h> 

int main(void)
{
  uint8_t current_temp = 0;
  uint8_t current_humi = 0;
  
  uint8_t last_temp = 255;
  uint8_t last_humi = 255;
  uint8_t was_error = 1; 
  
  // 1. Add variable to track consecutive read error counts
  uint8_t error_count = 0; 

  char buffer[20];

  SystemInit();
  SystemCoreClockUpdate();
  
  delay_ms(500); 
  OLED_Init();
  OLED_Clear();
  DHT11_Init(); 
  
  OLED_ShowString(10, 24, "System Ready", 16);
  delay_ms(1500); 
  
  OLED_Clear();

  while (1)
  {
      if (DHT11_Read_Data(&current_temp, &current_humi) == 1)
      {
          // 2. If read succeeds, reset the error counter to 0 immediately
          error_count = 0; 

          if (was_error) {
              OLED_Clear();
              OLED_ShowString(0, 0, "Temp:      ", 8);
              OLED_ShowString(0, 32, "Humidity:         ", 8);
              was_error = 0;
              last_temp = 255; 
              last_humi = 255;
          }

          if (current_temp != last_temp) {
              sprintf(buffer, "%02d  C        ", current_temp);
              OLED_ShowString(0, 12, buffer, 16); 
              OLED_ShowString(24, 12, "o", 8); 
              last_temp = current_temp; 
          }

          if (current_humi != last_humi) {
              sprintf(buffer, "%02d %%        ", current_humi);
              OLED_ShowString(0, 44, buffer, 16); 
              last_humi = current_humi; 
          }
      }
      else
      {
          // 3. If read fails, increment error counter by 1
          error_count++; 

          // 4. If failed 3 times consecutively (actual wiring disconnect), clear screen and display error
          if (error_count >= 3) {
              if (!was_error) {
                  OLED_Clear();
                  was_error = 1;
              }
              OLED_ShowString(0, 0,  "Sensor Error!     ", 16);
              OLED_ShowString(0, 24, "Check Wiring.     ", 16);
          }
      }

      delay_ms(2000); 
  }
}