Including push-button to thermometer

Projects General Guidance
2

The code you posted doesnt appear to have any pushbutton functionality. It would be useful to include the code you had tried..

The basic scheme is pretty simple :

// this doesnt take into account switch bounce
current_button=digitalRead(BUTTON_PIN);

if (current_button!=previous_button) {
   if (current_button==HIGH) {
     // button is pressed
     if (sensor_state==HIGH) {
        // was HIGH, going low so turn off sensor, LEDS etc

         sensor_state = LOW;
     } else {
         // was LOW, going high so turn on sensor, LEDS ect

          sensor_state = HIGH;
     };
   // update button state so we dont trigger until it changes again.
   previous_button=current_button;     
};

But you may need to account for Switch Bounce