Please help with code two temperature reader two 5 digit 7 segment build

Banned_L · December 31, 2019, 12:40pm

i have found a code for temperature to print in 4 digit 7 segment and when i first compiled the code at arduino uno it worked like a charm but when i try to put the same code on an online circuit build for testing the code and the components it doesnt work

i am trying to work two 5 digit 7 segment 2 temperature reader each temp for 1 set of 5 digits in 1 arduino with multiplexing i copied the code by typing not copy paste for personal expirience and to know what it does... and when it comes to multiplexing copy the code and change the values for the digits i think it will work and i cant because of this problem the page that i am testing (i dont know if i am allowed to share it but this is it) is tinkercad

please help

thanks in advance

Error: In function 'void loop()':
77:27: error: 'tens' cannot be used as a function
77:28: error: 'sendDigit' was not declared in this scope
82:27: error: 'ones' cannot be used as a function

The code that i am using:

//reading temperature and outputting to display
int sensorPin = 0;

//display pins
int segA = 5;
int segB = 13;
int segC = 10;

int segD = 8;
int segE = 7;
int segF = 4;
int segG = 11;
int segPt = 9;

int d1 = 6;

int d2 = 3;
int d3 = 2;
int d4 = 12;

int delayTime = 900;

int counter = 0;

float temperature = 77.7;

void setup() {
// put your setup code here, to run once:
//start serial communications
Serial.begin(9600);

//set up outputs
pinMode(12, OUTPUT);
pinMode(11, OUTPUT);
pinMode(10, OUTPUT);
pinMode(9, OUTPUT);
pinMode(8, OUTPUT);
pinMode(7, OUTPUT);
pinMode(6, OUTPUT);
pinMode(5, OUTPUT);
pinMode(4, OUTPUT);
pinMode(3, OUTPUT);
pinMode(2, OUTPUT);
pinMode(13, OUTPUT);
pinMode(0,INPUT);
delay(1000);
}

void loop() {

// put your main code here, to run repeatedly:

//only read temp every 100 cycles
if(counter%500 == 0)
{
// read the pin
int reading = analogRead(sensorPin);
//convert reading to volts
float volts = (reading * 5.0);
volts /= 1024.0;
// Serial.print(volts);
// Serial.println(" v");
temperature = volts * 100.0;
Serial.print(temperature);
Serial.println(" degrees Celsius");

//test output to display
// allHigh();
//reset our counter
counter = 0;
}

counter ++;

selectDigit(1);
sendDigit(tens(temperature));
delayMicroseconds(delayTime);

digitalWrite(d1, HIGH);
selectDigit(2);
sendDigit(ones(temperature));
point();
delayMicroseconds(delayTime);

digitalWrite(d2, HIGH);
selectDigit(3);
sendDigit(points(temperature));
delayMicroseconds(delayTime);
//turn point off

digitalWrite(d3, HIGH);
digitalWrite(segPt,HIGH);
selectDigit(4);
cee();
delayMicroseconds(delayTime);
digitalWrite(d4, HIGH);



}

void allLow() {

digitalWrite( 13, LOW); // A
digitalWrite( 2, LOW); // B
digitalWrite( 3, LOW); // C
digitalWrite(4, LOW); // D
digitalWrite(5, LOW); // E
digitalWrite( 6, LOW); // F
digitalWrite( 7, LOW); // G
digitalWrite(8, LOW); //point
digitalWrite(9, LOW);
digitalWrite(10, LOW);
digitalWrite(11, LOW);
digitalWrite(12, LOW);

}

void allHigh() {

digitalWrite( 13, HIGH); // A
digitalWrite( 2, HIGH); // B
digitalWrite( 3, HIGH); // C
digitalWrite(4, HIGH); // D
digitalWrite(5, HIGH); // E
digitalWrite( 6, HIGH); // F
digitalWrite( 7, HIGH); // G
digitalWrite(8, HIGH); //point
digitalWrite(9, HIGH);
digitalWrite(10, HIGH);
digitalWrite(11, HIGH);
digitalWrite(12, HIGH);

}

void one()
{
digitalWrite(segA, LOW);
digitalWrite(segB, HIGH);
digitalWrite(segC, HIGH);
digitalWrite(segD, LOW);
digitalWrite(segE, LOW);
digitalWrite(segF, LOW);
digitalWrite(segG, LOW);
digitalWrite(segPt, LOW);

}
void two()
{
digitalWrite(segA, HIGH);
digitalWrite(segB, HIGH);
digitalWrite(segC, LOW);
digitalWrite(segD, HIGH);
digitalWrite(segE, HIGH);
digitalWrite(segF, LOW);
digitalWrite(segG, HIGH);
digitalWrite(segPt, LOW);

}
void three()
{
digitalWrite(segA, HIGH);
digitalWrite(segB, HIGH);
digitalWrite(segC, HIGH);
digitalWrite(segD, HIGH);
digitalWrite(segE, LOW);
digitalWrite(segF, LOW);
digitalWrite(segG, HIGH);
digitalWrite(segPt, LOW);

}
void four()
{
digitalWrite(segA, LOW);
digitalWrite(segB, HIGH);
digitalWrite(segC, HIGH);
digitalWrite(segD, LOW);
digitalWrite(segE, LOW);
digitalWrite(segF, HIGH);
digitalWrite(segG, HIGH);
digitalWrite(segPt, LOW);

}
void five()
{
digitalWrite(segA, HIGH);
digitalWrite(segB, LOW);
digitalWrite(segC, HIGH);
digitalWrite(segD, HIGH);
digitalWrite(segE, LOW);
digitalWrite(segF, HIGH);
digitalWrite(segG, HIGH);
digitalWrite(segPt, LOW);

}
void six()
{
digitalWrite(segA, HIGH);
digitalWrite(segB, LOW);
digitalWrite(segC, HIGH);
digitalWrite(segD, HIGH);
digitalWrite(segE, HIGH);
digitalWrite(segF, HIGH);
digitalWrite(segG, HIGH);
digitalWrite(segPt, LOW);

}
void seven()
{
digitalWrite(segA, HIGH);
digitalWrite(segB, HIGH);
digitalWrite(segC, HIGH);
digitalWrite(segD, LOW);
digitalWrite(segE, LOW);
digitalWrite(segF, LOW);
digitalWrite(segG, LOW);
digitalWrite(segPt, LOW);

}
void eight()
{
digitalWrite(segA, HIGH);
digitalWrite(segB, HIGH);
digitalWrite(segC, HIGH);
digitalWrite(segD, HIGH);
digitalWrite(segE, HIGH);
digitalWrite(segF, HIGH);
digitalWrite(segG, HIGH);
digitalWrite(segPt, LOW);

}
void nine()
{
digitalWrite(segA, HIGH);
digitalWrite(segB, HIGH);
digitalWrite(segC, HIGH);
digitalWrite(segD, HIGH);
digitalWrite(segE, LOW);
digitalWrite(segF, HIGH);
digitalWrite(segG, HIGH);
digitalWrite(segPt, LOW);

}
void zero()
{
digitalWrite(segA, HIGH);
digitalWrite(segB, HIGH);
digitalWrite(segC, HIGH);
digitalWrite(segD, HIGH);
digitalWrite(segE, HIGH);
digitalWrite(segF, HIGH);
digitalWrite(segG, LOW);
digitalWrite(segPt, LOW);

}

void cee()
{
digitalWrite(segA, HIGH);
digitalWrite(segB, LOW);
digitalWrite(segC, LOW);
digitalWrite(segD, HIGH);
digitalWrite(segE, HIGH);
digitalWrite(segF, HIGH);
digitalWrite(segG, LOW);
digitalWrite(segPt, LOW);
}

void point()
{
digitalWrite(segPt, HIGH);
}

void selectDigit(int d)
{
/*
digitalWrite(d1,HIGH);

digitalWrite(d2,HIGH);
digitalWrite(d3,HIGH);
digitalWrite(d4,HIGH);
*/

switch (d)
{
case 1:
digitalWrite(d1, LOW);
break;
case 2:
digitalWrite(d2, LOW);
break;
case 3:
digitalWrite(d3, LOW);
break;
default:
digitalWrite(d4, LOW);
break;
}
}

void sendDigit(int x)
{
switch(x)
{
case 1:
one();
break;
case 2:
two();
break;
case 3:
three();
break;
case 4:
four();
break;
case 5:
five();
break;
case 6:
six();
break;
case 7:
seven();
break;
case 8:
eight();
break;
case 9:
nine();
break;
case 10:
cee();
break;
default:
zero();
break;
}
}

int tens(float x)
{
float divided = x/10.0;
return (int)divided;
}

int ones(float x)
{
float divided = x - (10.0 * tens(x));
// Serial.print(divided);
// Serial.println(" ***ones***");
return (int)divided;
}

int points(float x)
{
float divided = x - (10.0 * tens(x)) - ones(x);
divided *= 10;
return (int)divided;
}

UKHeliBob · December 31, 2019, 1:03pm

The code you posted compiles for me

Here it is Auto Formatted in the IDE which makes it easier to follow

//reading temperature and outputting to display
int sensorPin = 0;

//display pins
int segA = 5;
int segB = 13;
int segC = 10;

int segD = 8;
int segE = 7;
int segF = 4;
int segG = 11;
int segPt = 9;

int d1 = 6;

int d2 = 3;
int d3 = 2;
int d4 = 12;

int delayTime = 900;

int counter = 0;

float temperature = 77.7;

void setup()
{
  // put your setup code here, to run once:
  //start serial communications
  Serial.begin(9600);
  //set up outputs
  pinMode(12, OUTPUT);
  pinMode(11, OUTPUT);
  pinMode(10, OUTPUT);
  pinMode(9, OUTPUT);
  pinMode(8, OUTPUT);
  pinMode(7, OUTPUT);
  pinMode(6, OUTPUT);
  pinMode(5, OUTPUT);
  pinMode(4, OUTPUT);
  pinMode(3, OUTPUT);
  pinMode(2, OUTPUT);
  pinMode(13, OUTPUT);
  pinMode(0, INPUT);
  delay(1000);
}

void loop()
{
  // put your main code here, to run repeatedly:
  //only read temp every 100 cycles
  if (counter % 500 == 0)
  {
    // read the pin
    int reading = analogRead(sensorPin);
    //convert reading to volts
    float volts = (reading * 5.0);
    volts /= 1024.0;
    // Serial.print(volts);
    // Serial.println(" v");
    temperature = volts * 100.0;
    Serial.print(temperature);
    Serial.println(" degrees Celsius");
    //test output to display
    // allHigh();
    //reset our counter
    counter = 0;
  }
  counter ++;
  selectDigit(1);
  sendDigit(tens(temperature));
  delayMicroseconds(delayTime);
  digitalWrite(d1, HIGH);
  selectDigit(2);
  sendDigit(ones(temperature));
  point();
  delayMicroseconds(delayTime);
  digitalWrite(d2, HIGH);
  selectDigit(3);
  sendDigit(points(temperature));
  delayMicroseconds(delayTime);
  //turn point off
  digitalWrite(d3, HIGH);
  digitalWrite(segPt, HIGH);
  selectDigit(4);
  cee();
  delayMicroseconds(delayTime);
  digitalWrite(d4, HIGH);
}

void allLow()
{
  digitalWrite( 13, LOW); // A
  digitalWrite( 2, LOW); // B
  digitalWrite( 3, LOW); // C
  digitalWrite(4, LOW); // D
  digitalWrite(5, LOW); // E
  digitalWrite( 6, LOW); // F
  digitalWrite( 7, LOW); // G
  digitalWrite(8, LOW); //point
  digitalWrite(9, LOW);
  digitalWrite(10, LOW);
  digitalWrite(11, LOW);
  digitalWrite(12, LOW);
}

void allHigh()
{
  digitalWrite( 13, HIGH); // A
  digitalWrite( 2, HIGH); // B
  digitalWrite( 3, HIGH); // C
  digitalWrite(4, HIGH); // D
  digitalWrite(5, HIGH); // E
  digitalWrite( 6, HIGH); // F
  digitalWrite( 7, HIGH); // G
  digitalWrite(8, HIGH); //point
  digitalWrite(9, HIGH);
  digitalWrite(10, HIGH);
  digitalWrite(11, HIGH);
  digitalWrite(12, HIGH);
}

void one()
{
  digitalWrite(segA, LOW);
  digitalWrite(segB, HIGH);
  digitalWrite(segC, HIGH);
  digitalWrite(segD, LOW);
  digitalWrite(segE, LOW);
  digitalWrite(segF, LOW);
  digitalWrite(segG, LOW);
  digitalWrite(segPt, LOW);
}
void two()
{
  digitalWrite(segA, HIGH);
  digitalWrite(segB, HIGH);
  digitalWrite(segC, LOW);
  digitalWrite(segD, HIGH);
  digitalWrite(segE, HIGH);
  digitalWrite(segF, LOW);
  digitalWrite(segG, HIGH);
  digitalWrite(segPt, LOW);
}
void three()
{
  digitalWrite(segA, HIGH);
  digitalWrite(segB, HIGH);
  digitalWrite(segC, HIGH);
  digitalWrite(segD, HIGH);
  digitalWrite(segE, LOW);
  digitalWrite(segF, LOW);
  digitalWrite(segG, HIGH);
  digitalWrite(segPt, LOW);
}
void four()
{
  digitalWrite(segA, LOW);
  digitalWrite(segB, HIGH);
  digitalWrite(segC, HIGH);
  digitalWrite(segD, LOW);
  digitalWrite(segE, LOW);
  digitalWrite(segF, HIGH);
  digitalWrite(segG, HIGH);
  digitalWrite(segPt, LOW);
}
void five()
{
  digitalWrite(segA, HIGH);
  digitalWrite(segB, LOW);
  digitalWrite(segC, HIGH);
  digitalWrite(segD, HIGH);
  digitalWrite(segE, LOW);
  digitalWrite(segF, HIGH);
  digitalWrite(segG, HIGH);
  digitalWrite(segPt, LOW);
}
void six()
{
  digitalWrite(segA, HIGH);
  digitalWrite(segB, LOW);
  digitalWrite(segC, HIGH);
  digitalWrite(segD, HIGH);
  digitalWrite(segE, HIGH);
  digitalWrite(segF, HIGH);
  digitalWrite(segG, HIGH);
  digitalWrite(segPt, LOW);
}
void seven()
{
  digitalWrite(segA, HIGH);
  digitalWrite(segB, HIGH);
  digitalWrite(segC, HIGH);
  digitalWrite(segD, LOW);
  digitalWrite(segE, LOW);
  digitalWrite(segF, LOW);
  digitalWrite(segG, LOW);
  digitalWrite(segPt, LOW);
}
void eight()
{
  digitalWrite(segA, HIGH);
  digitalWrite(segB, HIGH);
  digitalWrite(segC, HIGH);
  digitalWrite(segD, HIGH);
  digitalWrite(segE, HIGH);
  digitalWrite(segF, HIGH);
  digitalWrite(segG, HIGH);
  digitalWrite(segPt, LOW);
}
void nine()
{
  digitalWrite(segA, HIGH);
  digitalWrite(segB, HIGH);
  digitalWrite(segC, HIGH);
  digitalWrite(segD, HIGH);
  digitalWrite(segE, LOW);
  digitalWrite(segF, HIGH);
  digitalWrite(segG, HIGH);
  digitalWrite(segPt, LOW);
}
void zero()
{
  digitalWrite(segA, HIGH);
  digitalWrite(segB, HIGH);
  digitalWrite(segC, HIGH);
  digitalWrite(segD, HIGH);
  digitalWrite(segE, HIGH);
  digitalWrite(segF, HIGH);
  digitalWrite(segG, LOW);
  digitalWrite(segPt, LOW);
}

void cee()
{
  digitalWrite(segA, HIGH);
  digitalWrite(segB, LOW);
  digitalWrite(segC, LOW);
  digitalWrite(segD, HIGH);
  digitalWrite(segE, HIGH);
  digitalWrite(segF, HIGH);
  digitalWrite(segG, LOW);
  digitalWrite(segPt, LOW);
}

void point()
{
  digitalWrite(segPt, HIGH);
}

void selectDigit(int d)
{
  /*
  digitalWrite(d1,HIGH);

  digitalWrite(d2,HIGH);
  digitalWrite(d3,HIGH);
  digitalWrite(d4,HIGH);
  */
  switch (d)
  {
    case 1:
      digitalWrite(d1, LOW);
      break;
    case 2:
      digitalWrite(d2, LOW);
      break;
    case 3:
      digitalWrite(d3, LOW);
      break;
    default:
      digitalWrite(d4, LOW);
      break;
  }
}

void sendDigit(int x)
{
  switch (x)
  {
    case 1:
      one();
      break;
    case 2:
      two();
      break;
    case 3:
      three();
      break;
    case 4:
      four();
      break;
    case 5:
      five();
      break;
    case 6:
      six();
      break;
    case 7:
      seven();
      break;
    case 8:
      eight();
      break;
    case 9:
      nine();
      break;
    case 10:
      cee();
      break;
    default:
      zero();
      break;
  }
}

int tens(float x)
{
  float divided = x / 10.0;
  return (int)divided;
}

int ones(float x)
{
  float divided = x - (10.0 * tens(x));
  // Serial.print(divided);
  // Serial.println(" ***ones***");
  return (int)divided;
}

int points(float x)
{
  float divided = x - (10.0 * tens(x)) - ones(x);
  divided *= 10;
  return (int)divided;
}

Banned_L · December 31, 2019, 1:09pm

thank you so much i pasted your code it worked .. i tryied to paste my code it didnt compile at all i dont know what is happening... time to modify this code so it can accept two 5 digit 7 segment for 2 tempeture sensor

UKHeliBob · December 31, 2019, 2:33pm

That was not my code, it was yours. All I did was to Auto format it in the IDE and that does not change the logic or contents of the code, it merely formats it so that it is easier for humans to read. The compiler doesn't care about extra spaces, extra lines or extra or missing indentation

Banned_L · December 31, 2019, 3:28pm

it worked i dont know why and how i paste my code and it doesnt compile it gives me random error plus the tens and ones i pasted your code and it worked perfectly strainge i know

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Please help with code two temperature reader two 5 digit 7 segment build

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