Blink a Temperature (LM 36)

Blink a Temperature

For this setup we are only adding an LM-36 temperature sensor to the previous setup (blink a number). First we take a reading from the sensor and break it up into the Lease Significant Digit LSD and the Most Significant Digit MSB. Each digit is blinked out one a time starting from the MSB and followed by the LSB.

Hookup for Blink a Temperature

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// Blinks out the temperature in Centigrade
// Only handles two digit temperatures will not print out negative temperatures

float blinkNum;
byte dl;
byte dm;

void setup()
{
  pinMode(13, OUTPUT);
}

void loop()
{


 float voltage = analogRead(A0) * 5.0;
 voltage /= 1024.0;

 float temperatureC = (voltage - 0.5) * 100 ;  //converting from 10 mv per degree wit 500 mV offset

blinkNum = (int) temperatureC;

//blinkNum = ((analogRead(A0) * 4.88)-500)/10;


dm = (byte) blinkNum /10; // cast float as byte
dl = (byte) blinkNum % 10; // cast float as byte

  blinkX(dm);
  delay(300);
  blinkX(dl);
}

void blinkX(int blinkTimes)
{
  if (blinkTimes > 0)
  {
  for(int x = 0; x < blinkTimes; x++)
  {
    digitalWrite(13, HIGH);
    delay(200);
    digitalWrite(13, LOW);
    delay(200);
  }
  }
  else // if  > 0
  {
    digitalWrite(13,HIGH); //Zero is a quick blink
    delay(50);
    digitalWrite(13,LOW);
    delay(50);
  }
delay(3000);
}

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TinkerCad Link:

https://www.tinkercad.com/things/49j1ynzkLJ2-blink-out-temperature-from-tmp-36/editel

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