Leonardo: LED does not turn on after activation

Projects Programming
1

Hi,

I'm try to make an AlarmSignal that turns on a LED (it does not say what kind, it is a powerled 12v AC/DC in a white cover) every 5 minutes for half a minute. When the cup (to which the accelerometer is attached) is picked up within this half a minute, the light should fade off. When the cup is shaked harder than just picked up, it should immediately go the AlarmSignal. The LED used to turn on under these circumstances, but apperanlty I changed something in the code that stops the LED from turning on. In the serial monitor I see that it activates the reset, detects the movement but the serial print of the LED gives a 6 all the time and the light stays off. Anyone any idea?

This is the code:

#include <Time.h>
#include <TimeAlarms.h>
#include <TinkerKit.h>

int acc = I0;
int led = 6;
int NTC = 5;

long interval = 5000;

boolean detected_movement = false;
boolean detected_heat = false;
boolean detected_reset = false;

void setup()
{ 
  Serial.begin(9600);
 
  Alarm.timerRepeat(300, AlarmSignal);            // timer for every .. seconds   
  
  pinMode (acc, INPUT);
  pinMode(NTC, INPUT);
  pinMode(led, OUTPUT);
}

void  loop(){  
  digitalClockDisplay();
  Alarm.delay(1000); // wait one second between clock display
  
  DetectMovement();
  DetectHeat();
  DetectReset();
}

void DetectReset()
{
    //A hard shake means the program is reset! 
    detected_reset = analogRead(acc) >= 500 ; //random(26) >= 10;//

    if(detected_reset){
      Serial.println("Reset DETECTED");
      delay(3000);
      Serial.println("start reset");
      AlarmSignal();
    }
}

void DetectMovement()
{
   boolean previous_detected_movement = detected_movement;
   detected_movement = analogRead(acc)>= 460 && analogRead(acc) <= 470 || analogRead(acc) >= 490 && analogRead(acc) <=499 ;
   Serial.println(analogRead(acc));
//   Serial.println(analogRead(NTC));
   if(detected_movement)
   {
      Serial.println("Movement1 DETECTED");
   }
    if(previous_detected_movement == false && detected_movement == true)
    {
    FadeOut(100);
    }
}
    
   
   //Fade in if heat is detected
//   if(previous_detected_heat == false && detected_heat == true)
//  detected_movement = analogRead(acc) >= 500 && analogRead(acc) < 510; //random(26) >= 10;//
//  Serial.println(analogRead(acc));
//    if(detected_movement==true)
//      {
//        Serial.println("Movement1 DETECTED");
//        FadeOut(100);
//   }
//}

void DetectHeat()
{
   boolean previous_detected_heat = detected_heat;
   detected_heat = analogRead(NTC) >= 500;
//   Serial.println(analogRead(NTC));
   if(detected_heat)
   {
      Serial.println("Heat DETECTED");
   }
   
   //Fade in if heat is detected
   if(previous_detected_heat == false && detected_heat == true)
   {
     delay(3000);
     FadeIn(30);
     delay(1000);
     FadeOut(30);
   }
}


void FadeIn(int fade_delay)
{
  //Fade in
  for(int fadeValue = 0 ; fadeValue <= 255; fadeValue +=5) {    // sets the value (range from 0 to 255):
    analogWrite(led, fadeValue);  
    delay (fade_delay);    
    digitalWrite(led, HIGH);
  }
}

void FadeOut(int fade_delay)
{
  //fade out
  for(int fadeValue = 255 ; fadeValue >= 0; fadeValue -=5) {    // sets the value (range from 0 to 255):
    analogWrite(led, fadeValue);            // wait for 30 milliseconds to see the dimming effect    
    delay(30);     
    analogWrite(led, LOW);
  } 
}

void AlarmSignal(){

    unsigned long previousMillis = millis();
    
    if(!detected_movement and !detected_heat)
    {   
      FadeIn(30);
 
      unsigned long currentMillis = millis();
      
      //Wait for interval
      while(currentMillis - previousMillis < interval and !detected_movement and !detected_heat and !detected_reset)
      {
        currentMillis = millis();
        
        DetectReset();
        DetectMovement();
        DetectHeat();
        
      }
      if (!detected_movement and !detected_reset and !detected_heat)
      {
      FadeOut(30);
      }  
  }
    
}
    

void digitalClockDisplay()
{
  // digital clock display of the time
  Serial.print(hour());
  printDigits(minute());
  printDigits(second());
  Serial.println(); 
}

void printDigits(int digits)
{
  Serial.print(":");
  if(digits < 10)
    Serial.print('0');
  Serial.print(digits);
}
2 
      delay(3000);

You need to replace all of your delay() calls with Alarm.delay().

      while(currentMillis - previousMillis < interval and !detected_movement and !detected_heat and !detected_reset)
      {
        currentMillis = millis();
        
        DetectReset();
        DetectMovement();
        DetectHeat();
        
      }

Since each of those functions can, possibly, take a long time, you should be updating currentMillis AFTER the calls, not before.

but the serial print of the LED gives a 6 all the time

Maybe because of this?

int led = 6;

But, that's just a guess as your code doesn't contain a "serial print of the LED".

and the light stays off.

Maybe because the fade functions aren't called.

3

If found the problem! Apperently it wasn't the code, the adapter just died.. Thanks for your help anyway PaulS.