Temperature display error on odometer

Projects Programming
1 
#include <RunningAverage.h>
#include <Wire.h>
#include "OneButton.h"
#include <U8g2lib.h>

#include <dht.h>
U8G2_SSD1306_128X64_NONAME_F_HW_I2C u8g2(U8G2_R0, /* reset=*/ U8X8_PIN_NONE);

#define DHT22_PIN 5 // DHT22 sensor
dht DHT; 
int hum;  
int temp; 

const uint16_t Entprellzeit = 13; // in ms
volatile uint32_t lastMillis = 0;
RunningAverage myRA(7);
volatile short geschwindigkeit;
const int buttonPin = 4;
const int reedPin = 2;
int screen = 0;
volatile int RotationCounter = 0;
OneButton button(buttonPin, true);
const int RadUmfang = 1862;
char Speed[10];


boolean reset = false;
boolean MotorradFaehrt = false;
boolean ShowLogo = false;
boolean beimNaechstenStopDatenSichern = false;

#define logo_width 123
#define logo_height 64
const unsigned char logo[] PROGMEM = {
 };






#define ha_width 49
#define ha_height 38
const unsigned char ha[] PROGMEM = {
    0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0xC0, 0x07, 0x00, 
  0x00, 0x00, 0x00, 0x00, 0xC0, 0x07, 0x00, 0x00, 0x00, 0x00, 0x00, 0xC0, 
  0x07, 0x00, 0x00, 0x00, 0x00, 0x00, 0xC0, 0x07, 0x00, 0x00, 0x00, 0x00, 
  0x00, 0xC0, 0x07, 0x00, 0x00, 0x00, 0x00, 0x00, 0xC0, 0x07, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0xC0, 0xFF, 0x1F, 0x00, 0x00, 0x00, 0x00, 0xC0, 0xFF, 
  0x1F, 0x00, 0x00, 0x00, 0x00, 0xC0, 0xFF, 0x1F, 0x00, 0x00, 0x00, 0x00, 
  0xC0, 0x07, 0x00, 0x00, 0x00, 0x00, 0x00, 0xC0, 0x07, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0xC0, 0x07, 0x00, 0x00, 0x00, 0x00, 0x00, 0xC0, 0x07, 0x00, 
  0x00, 0x00, 0x00, 0x00, 0xC0, 0xFF, 0x1F, 0x00, 0x00, 0x00, 0x00, 0xC0, 
  0xFF, 0x1F, 0x00, 0x00, 0x00, 0x00, 0xC0, 0xFF, 0x1F, 0x00, 0x00, 0x00, 
  0x00, 0xC0, 0x07, 0x08, 0x00, 0x00, 0x00, 0x00, 0xC0, 0x07, 0x00, 0x00, 
  0x00, 0x00, 0x00, 0xC0, 0x07, 0x00, 0x00, 0x00, 0x00, 0x00, 0xC0, 0x07, 
  0x00, 0x00, 0x00, 0x00, 0x00, 0xC0, 0x07, 0x00, 0x00, 0x00, 0x00, 0x00, 
  0xC0, 0xFF, 0x1F, 0x00, 0x00, 0x00, 0x00, 0xC0, 0xFF, 0x1F, 0x00, 0x00, 
  0x00, 0x00, 0xC0, 0xFF, 0x1F, 0x00, 0x00, 0x00, 0x00, 0xC0, 0x07, 0x00, 
  0x00, 0x00, 0x00, 0x00, 0xC0, 0x07, 0x00, 0x00, 0x00, 0x00, 0x00, 0xC0, 
  0x07, 0x00, 0x00, 0x00, 0x00, 0x00, 0xC0, 0x07, 0x00, 0x00, 0x00, 0x78, 
  0x00, 0xE0, 0x0F, 0x00, 0x1E, 0x00, 0xFE, 0x03, 0xF0, 0x0F, 0x80, 0xFF, 
  0x00, 0xFF, 0xFF, 0xF0, 0x1F, 0xFE, 0xFF, 0x01, 0xFF, 0xFF, 0xF0, 0x1F, 
  0xFE, 0xFF, 0x01, 0x07, 0xFF, 0xF0, 0x1F, 0xFE, 0xC1, 0x01, 0x00, 0xFC, 
  0xF0, 0x0F, 0x3E, 0x00, 0x00, 0x00, 0x00, 0xE0, 0x0F, 0x00, 0x00, 0x00, 
  0x00, 0x00, 0xC0, 0x07, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
  0x00, 0x00, };

void setup()   {
 //  Serial.begin(9600);      // open the serial port at 9600 bps:



  pinMode(reedPin, INPUT_PULLUP);
  pinMode(buttonPin, INPUT_PULLUP);
  EIFR = (1 << INTF1);                                      
  attachInterrupt(digitalPinToInterrupt(reedPin), revs, FALLING);
                                  
  myRA.clear();
  button.attachClick(klick);

  u8g2.begin();
  u8g2_prepare();
  u8g2.clearBuffer();
  u8g2.drawXBMP( 7, 0, logo_width, logo_height, logo);
  u8g2.sendBuffer();
  
}



void loop() {
  button.tick();
    dth();
  u8g2.clearBuffer();
  if (MotorradFaehrt) {
    myRA.addValue(geschwindigkeit);         
  
    MotorradFaehrt = false;
    if (geschwindigkeit > 30) beimNaechstenStopDatenSichern = true;   

  }

  if (micros() - lastMillis >= 10000000000) {              
    u8g2.drawXBMP( 7, 0, logo_width, logo_height, logo);
    ShowLogo = true;
    if (beimNaechstenStopDatenSichern) {            

      beimNaechstenStopDatenSichern = false;
    }
  } else {
    draw();
  }
  u8g2.sendBuffer();

  if (micros() - lastMillis >= 1000) {
    myRA.clear();                                   
  }

  if (RotationCounter >= 10) {          
    RotationCounter = 0;

  }
}
void dth() { 
  
  int chk = DHT.read22(DHT22_PIN);
  hum = DHT.humidity;
  temp= DHT.temperature;
}

void draw() {

  short VAnzeige = myRA.getAverage();        // Mittelwert errechnen
  

  sprintf(Speed, "%3d", VAnzeige);
  switch (screen) {
    case 1:

      u8g2.setFont(u8g2_font_logisoso38_tn);
      u8g2.drawStr( 0, 15, Speed);
      u8g2.setFont(u8g2_font_logisoso20_tr);
      u8g2.drawStr( 75, 32, "kmh");
      break;
   case 0:
     
      u8g2.setFont(u8g2_font_logisoso20_tr);
      u8g2.setCursor(90, 40);
      u8g2.println("C");
      u8g2.setCursor(45, 40);
      u8g2.print(temp);
      u8g2.drawXBMP( 40, 0, ha_width, ha_height,ha);
    break;
  }
}


void u8g2_prepare(void) {
  u8g2.setFontRefHeightExtendedText();
  u8g2.setDrawColor(1);
  u8g2.setFontPosTop();
  u8g2.setFontDirection(0);
}



void revs() {                           // Interrupt-Routine
  uint32_t jetztMillis = micros();
  if (jetztMillis - lastMillis >= Entprellzeit) {                            
    geschwindigkeit = RadUmfang * 200.200 / (jetztMillis - lastMillis);       

    lastMillis = micros();                               
    
    RotationCounter += 1;
    MotorradFaehrt = true;
  }
}

void klick() {   //durchtoggeln der Screens
  screen++;
  if (screen > 1) screen = 0;
  if (ShowLogo) {  //falls Logo angezeigt und Knopf gedrückt wird --> Logo-Timer wieder auf 10sek setzen und Geschwindigkeit anzeigen
    ShowLogo = false;
    lastMillis = micros();
    screen = 0;
  }

}

Hello, I want to provide temperature display in the km counter section.
The necessary codes are above, but there is an error when the km counting process starts, that is, when the 2nd pin is reed, there are constant changes in temperature and efficiency, but when there is no input on the 2nd pin, everything works normally.
When the km counting process I want is done, I want to display it without changing the degree part. How should I make a change in the software?
Thank you to those who have already replied.

2

What is, "the 2nd pin"?

3

const int reedPin = 2;

hello i wanted to say this entry.
When the trigger starts, that is, when the frequency is given, the degree does not stay constant.

4

...and... does the odometer code work, by itself?

5

When I give a frequency, the km count part works normally, there is no problem in this part. but when the km count starts, there are degree deviations and errors.

6

Confusing. If the "km count starts", is it not "working normally"?

7

yes, degrees are displayed incorrectly when km counting starts. When the km counting stops, the degrees are displayed properly. I added the codes above, you can upload it and see how it behaves.

8

Only a tiny fraction of the people here have the same hardware as you do.

9

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