Successed displaying dht22 on dot-matrix using esp32

HI guys,in my project i succeed displaying DHT22 data on a led matrix 488 with MAX27XX driver,but in displaying the humidity value is displaying twise at the same time ,instead i just need how to display the temperature and humidity succevelly without this problem,and to know how can i add alert scrolling messages in case the values are bigger than the average.
thanks for advance.

#include <MD_Parola.h>
#include "DHT.h"
#define DHTPIN 14  
#define DHTTYPE DHT22  
DHT dht(DHTPIN, DHTTYPE);
#define HARDWARE_TYPE MD_MAX72XX::FC16_HW

#define MAX_DEVICES 4
//specify the CS pin’s connection with the ESP32 which is pin 5
#define CS_PIN 5
MD_Parola P = MD_Parola(HARDWARE_TYPE, CS_PIN, MAX_DEVICES);
#define SPEED_TIME  50
#define PAUSE_TIME  0
#define MAX_MESG  20
char szMesg[MAX_MESG+1] = "";

uint8_t degC[] = { 6, 3, 3, 56, 68, 68, 68 }; // Deg C

void getHumidit(char *psz)
{
        float h = dht.readHumidity();
          dtostrf(h, 3, 0, szMesg);
          strcat(szMesg, " % ");
}
void getTemperatur(char *psz)
{
        float t = dht.readTemperature();
          dtostrf(t, 3, 0, szMesg);
          strcat(szMesg, " $");
}

void setup(void)
{
  Serial.begin(115200);
  P.begin(3);
  P.setInvert(false);
  P.setZone(0, 0, 3);
  P.displayZoneText(0, szMesg, PA_CENTER, SPEED_TIME, 0, PA_PRINT, PA_SCROLL_LEFT);
  P.addChar('$', degC);
  dht.begin();
}

void loop()
{ static uint8_t  display = 0; 
  P.displayAnimate();
  if (P.getZoneStatus(0)){
          
     switch (display)
    {
      case 0:
        P.setTextEffect(0, PA_SCROLL_LEFT, PA_SCROLL_LEFT);
        getTemperatur(szMesg);
        display++;
        break;

      case 1: 
        P.setTextEffect(0, PA_SCROLL_LEFT, PA_SCROLL_LEFT);
        getHumidit(szMesg);
        
        display++;
        break;
      default:  
        P.setTextEffect(0, PA_SCROLL_LEFT, PA_SCROLL_LEFT);
        display = 0;
        break;
        }
    P.displayReset(0);
   }
     }

I have not use the MD_PAROLA library myself, but I made your project in Wokwi, so others can try the sketch:

Which DHT library do you use ?

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Hi,
this topic is the same subject as?
" Display dht22 data on a 4*8*8 led matrix with MAX27XX using esp32 "
If so, do not duplicate posts, and ask moderators to merge your posts.

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