Multisensor PIR problem [solved]

[andriej]

" delay(dht.getMinimumSamplingPeriod());" is the problem - it delays whole sketch every run of loop()

[n3ro]

PERFECT!!!!!!!!!!! It works now :):):)

Big THX!

[n3ro]

@andriej hey,

the PIR works perfect now, but the DHT didnt update... Only the first startup of the arduino works:

---------- Battery: 100
---------- PIR: 1
send: 10-10-0-0 s=1,c=1,t=16,pt=0,l=1,st=ok:1
send: 10-10-0-0 s=3,c=1,t=0,pt=7,l=5,st=ok:20.5
---------- Temp: 20.50
send: 10-10-0-0 s=2,c=1,t=1,pt=7,l=5,st=ok:34.6
---------- Humidity: 34.60
send: 10-10-0-0 s=4,c=1,t=23,pt=2,l=2,st=ok:87
---------- Light: 87
---------- Battery: 100
---------- PIR: 0
send: 10-10-0-0 s=1,c=1,t=16,pt=0,l=1,st=ok:0
---------- Battery: 100
---------- PIR: 1
send: 10-10-0-0 s=1,c=1,t=16,pt=0,l=1,st=ok:1
send: 10-10-0-0 s=4,c=1,t=23,pt=2,l=2,st=ok:84
---------- Light: 84
---------- Battery: 100
---------- PIR: 0
send: 10-10-0-0 s=1,c=1,t=16,pt=0,l=1,st=ok:0
send: 10-10-0-0 s=4,c=1,t=23,pt=2,l=2,st=ok:88
---------- Light: 88
---------- Battery: 100
---------- PIR: 1
send: 10-10-0-0 s=1,c=1,t=16,pt=0,l=1,st=ok:1
send: 10-10-0-0 s=4,c=1,t=23,pt=2,l=2,st=ok:83
---------- Light: 83
---------- Battery: 100
---------- PIR: 0
send: 10-10-0-0 s=1,c=1,t=16,pt=0,l=1,st=ok:0
send: 10-10-0-0 s=4,c=1,t=23,pt=2,l=2,st=ok:87
---------- Light: 87
---------- Battery: 100
---------- PIR: 1

[Sparkman]

@n3ro the DHT needs a delay between polling. You are likely polling it too fast now. Rather than remove the delay command, you need to use a different method to not poll the DHT too frequently. The millis command is one option: http://www.arduino.cc/en/Tutorial/BlinkWithoutDelay

Cheers
Al

[n3ro]

ufff. to build a multisensor sketch is really hard :-/

thx for your info!

[n3ro]

can somebody help me with my sketch? i dont understand millis :-/

[Sparkman]

@n3ro Hard to help you with your sketch since you don't have it posted ;-)

[n3ro]

@n3ro said:

https://github.com/n3roGit/MySensors_n3ro/tree/master/MotionSensor_DHT_light_battery_mod

;)

[torfinn]

Hi ! I had the same problem. Seems like gw.sleep(some_number_of_mills); lets you loose the init of the dht. Just put dht.begin(); in your loop before you read the value and it should work.

example.
void loop ()
{
dht.begin();
float temperature = dht.readTemperature();
......

[n3ro]

@torfinn said:

dht.begin();

Hey torfinn,

i get this error when compiling:
MotionSensor_DHT_light_battery_mod.ino: In function 'void loop()':
MotionSensor_DHT_light_battery_mod.ino:109:7: error: 'class DHT' has no member named 'begin'
Fehler beim Kompilieren.

[n3ro]

I have a idea,

is it possible to build a second loop like this?
But now i have one problem... the loop2 never run...

#include <MySensor.h>
#include <readVcc.h>
#include <SPI.h>
#include <DHT.h>

#include <Scheduler.h>




#define NODE_ID 11                       // ID of node
unsigned long SLEEP_TIME = 600000;        // Sleep time between reports (in milliseconds)

#define CHILD_ID_PIR 1                   // Id of the sensor PIR
#define CHILD_ID_HUM 2                   // Id of the sensor HUM
#define CHILD_ID_TEMP 3                  // Id of the sensor TEMP
#define CHILD_ID_LIGHT 4                 // Id of the sensor LIGHT

#define PIR_SENSOR_DIGITAL 3           // The digital input you attached your motion sensor.  (Only 2 and 3 generates interrupt!)
#define INTERRUPT PIR_SENSOR_DIGITAL-2 // Usually the interrupt = pin -2 (on uno/nano anyway)
#define HUMIDITY_SENSOR_DIGITAL_PIN 2
#define LIGHT_SENSOR_ANALOG_PIN 0

MySensor gw;
// Initialize Variables
MyMessage msgPir(CHILD_ID_PIR, V_TRIPPED);
MyMessage msgHum(CHILD_ID_HUM, V_HUM);
MyMessage msgTemp(CHILD_ID_TEMP, V_TEMP);
MyMessage msgLight(CHILD_ID_LIGHT, V_LIGHT_LEVEL);

DHT dht;
float lastTemp;
float lastHum;
boolean metric = true;
int oldBatteryPcnt;
int lastLightLevel;
unsigned long time;


int MIN_V = 2700; // empty voltage (0%)
int MAX_V = 3200; // full voltage (100%)

void setup()
{
  gw.begin(NULL, NODE_ID, false);

  //PIR
  // Send the sketch version information to the gateway and Controller
  gw.sendSketchInfo("Motion Sensor", "1.0");

  pinMode(PIR_SENSOR_DIGITAL, INPUT);      // sets the motion sensor digital pin as input
  digitalWrite(PIR_SENSOR_DIGITAL, HIGH);
  // Register all sensors to gw (they will be created as child devices)
  gw.present(CHILD_ID_PIR, S_MOTION);

  //DHT
  dht.setup(HUMIDITY_SENSOR_DIGITAL_PIN);

  // Send the Sketch Version Information to the Gateway
  gw.sendSketchInfo("Humidity", "1.0");

  // Register all sensors to gw (they will be created as child devices)
  gw.present(CHILD_ID_HUM, S_HUM);
  gw.present(CHILD_ID_TEMP, S_TEMP);

  metric = gw.getConfig().isMetric;

  //LIGHT
  // Send the sketch version information to the gateway and Controller
  gw.sendSketchInfo("Light Sensor", "1.0");

  // Register all sensors to gateway (they will be created as child devices)
  gw.present(CHILD_ID_LIGHT, S_LIGHT_LEVEL);
  
  Scheduler.startLoop(loop2);

}

void loop()
{
  // Read digital motion value
  boolean tripped = digitalRead(PIR_SENSOR_DIGITAL) == HIGH;
  Serial.print("---------- PIR: ");
  Serial.println(tripped);
  gw.send(msgPir.set(tripped ? "1" : "0")); // Send tripped value to gw

  // Sleep until interrupt comes in on motion sensor. Send update every two minute.
  gw.sleep(INTERRUPT, CHANGE, SLEEP_TIME);
}
void loop2()
{
  //DHT
  //dht.begin();
  delay(dht.getMinimumSamplingPeriod());
  //delay(1000);
  //millis(dht.getMinimumSamplingPeriod());
  //Serial.print(dht.getMinimumSamplingPeriod());

  float temperature = dht.getTemperature();
  if (isnan(temperature)) {
    Serial.println("Failed reading temperature from DHT");
  } else if (temperature != lastTemp) {
    lastTemp = temperature;
    if (!metric) {
      temperature = dht.toFahrenheit(temperature);
    }
    gw.send(msgTemp.set(temperature, 1));
    Serial.print("---------- Temp: ");
    Serial.println(temperature);
  }

  float humidity = dht.getHumidity();
  if (isnan(humidity)) {
    Serial.println("Failed reading humidity from DHT");
  } else if (humidity != lastHum) {
    lastHum = humidity;
    gw.send(msgHum.set(humidity, 1));
    Serial.print("---------- Humidity: ");
    Serial.println(humidity);
  }

  // Light
  int lightLevel = (1023 - analogRead(LIGHT_SENSOR_ANALOG_PIN)) / 10.23;
  //Serial.println(lightLevel);
  if (lightLevel != lastLightLevel) {
    gw.send(msgLight.set(lightLevel));
    lastLightLevel = lightLevel;
    Serial.print("---------- Light: ");
    Serial.println(lightLevel);
  }

  // Measure battery
  float batteryV = readVcc();
  int batteryPcnt = (((batteryV - MIN_V) / (MAX_V - MIN_V)) * 100 );
  if (batteryPcnt > 100) {
    batteryPcnt = 100;
  }

  if (batteryPcnt != oldBatteryPcnt) {
    gw.sendBatteryLevel(batteryPcnt); // Send battery percentage
    oldBatteryPcnt = batteryPcnt;
  }
  Serial.print("---------- Battery: ");
  Serial.println(batteryPcnt);
  gw.sleep(SLEEP_TIME);
}

i have downloaded THIS

But i get this error when compiling:

In file included from MotionSensor_DHT_light_battery_mod.ino:6:0:
Arduino\libraries\Scheduler/Scheduler.h:33:22: fatal error: WProgram.h: No such file or directory
#include <WProgram.h>

[rvendrame]

@n3ro , you can have only one loop().

You need to merge the two logics into into a single loop. You might also want to remove the second sleep, otherwise PIR will not trigger there.

[n3ro]

@rvendrame do you have an idea how to do it?

[rvendrame]

Maybe you can start by to removing these 3 lines:

}
void loop2()
{

... and move the 1st sleep to the end of loop (where the 2nd sleep is):

// Sleep until interrupt comes in on motion sensor. Send update every two minute.
 gw.sleep(INTERRUPT, CHANGE, SLEEP_TIME);

.... and remove the 2nd sleep:

gw.sleep(SLEEP_TIME);

[n3ro]

@rvendrame
if i use this:

#include <MySensor.h>
#include <readVcc.h>
#include <SPI.h>
#include <DHT.h>


#define NODE_ID 10                       // ID of node
unsigned long SLEEP_TIME = 600000;        // Sleep time between reports (in milliseconds)

#define CHILD_ID_PIR 1                   // Id of the sensor PIR
#define CHILD_ID_HUM 2                   // Id of the sensor HUM
#define CHILD_ID_TEMP 3                  // Id of the sensor TEMP
#define CHILD_ID_LIGHT 4                 // Id of the sensor LIGHT

#define PIR_SENSOR_DIGITAL 3           // The digital input you attached your motion sensor.  (Only 2 and 3 generates interrupt!)
#define INTERRUPT PIR_SENSOR_DIGITAL-2 // Usually the interrupt = pin -2 (on uno/nano anyway)
#define HUMIDITY_SENSOR_DIGITAL_PIN 2
#define LIGHT_SENSOR_ANALOG_PIN 0

MySensor gw;
// Initialize Variables
MyMessage msgPir(CHILD_ID_PIR, V_TRIPPED);
MyMessage msgHum(CHILD_ID_HUM, V_HUM);
MyMessage msgTemp(CHILD_ID_TEMP, V_TEMP);
MyMessage msgLight(CHILD_ID_LIGHT, V_LIGHT_LEVEL);

DHT dht;
float lastTemp;
float lastHum;
boolean metric = true;
int oldBatteryPcnt;
int lastLightLevel;


int MIN_V = 2700; // empty voltage (0%)
int MAX_V = 3200; // full voltage (100%)

void setup()
{
  gw.begin(NULL, NODE_ID, false);

  //PIR
  // Send the sketch version information to the gateway and Controller
  gw.sendSketchInfo("Motion Sensor", "1.0");

  pinMode(PIR_SENSOR_DIGITAL, INPUT);      // sets the motion sensor digital pin as input
  digitalWrite(PIR_SENSOR_DIGITAL, HIGH);
  // Register all sensors to gw (they will be created as child devices)
  gw.present(CHILD_ID_PIR, S_MOTION);
  
  //DHT
  dht.setup(HUMIDITY_SENSOR_DIGITAL_PIN);

  // Send the Sketch Version Information to the Gateway
  gw.sendSketchInfo("Humidity", "1.0");

  // Register all sensors to gw (they will be created as child devices)
  gw.present(CHILD_ID_HUM, S_HUM);
  gw.present(CHILD_ID_TEMP, S_TEMP);

  metric = gw.getConfig().isMetric;
  
  //LIGHT
  // Send the sketch version information to the gateway and Controller
  gw.sendSketchInfo("Light Sensor", "1.0");

  // Register all sensors to gateway (they will be created as child devices)
  gw.present(CHILD_ID_LIGHT, S_LIGHT_LEVEL);

}

void loop()
{

  // Measure battery
  float batteryV = readVcc();
  int batteryPcnt = (((batteryV - MIN_V) / (MAX_V - MIN_V)) * 100 );
  if (batteryPcnt > 100) {
    batteryPcnt = 100;
  }

  if (batteryPcnt != oldBatteryPcnt) {
    gw.sendBatteryLevel(batteryPcnt); // Send battery percentage
    oldBatteryPcnt = batteryPcnt;
  }
  Serial.print("---------- Battery: ");
  Serial.println(batteryPcnt);

  // Read digital motion value
  boolean tripped = digitalRead(PIR_SENSOR_DIGITAL) == HIGH;
  Serial.print("---------- PIR: ");
  Serial.println(tripped);
  gw.send(msgPir.set(tripped ? "1" : "0")); // Send tripped value to gw


  //DHT
  //delay(dht.getMinimumSamplingPeriod());

  float temperature = dht.getTemperature();
  if (isnan(temperature)) {
    Serial.println("Failed reading temperature from DHT");
  } else if (temperature != lastTemp) {
    lastTemp = temperature;
    if (!metric) {
      temperature = dht.toFahrenheit(temperature);
    }
    gw.send(msgTemp.set(temperature, 1));
    Serial.print("---------- Temp: ");
    Serial.println(temperature);
  }

  float humidity = dht.getHumidity();
  if (isnan(humidity)) {
    Serial.println("Failed reading humidity from DHT");
  } else if (humidity != lastHum) {
    lastHum = humidity;
    gw.send(msgHum.set(humidity, 1));
    Serial.print("---------- Humidity: ");
    Serial.println(humidity);
  }
  // Light
  int lightLevel = (1023 - analogRead(LIGHT_SENSOR_ANALOG_PIN)) / 10.23;
  //Serial.println(lightLevel);
  if (lightLevel != lastLightLevel) {
    gw.send(msgLight.set(lightLevel));
    lastLightLevel = lightLevel;
    Serial.print("---------- Light: ");
    Serial.println(lightLevel);
  }
  // Sleep until interrupt comes in on motion sensor. Send update every two minute.
  gw.sleep(INTERRUPT, CHANGE, SLEEP_TIME);
}

the pir works fine. but the dht doesn't work.

when delay(dht.getMinimumSamplingPeriod()); is used the dht works and the pir fails.

[rvendrame]

It makes sense ;-) Try this:

create (outside the loop) a variable to count the time:

long mytime = 0; 

.. and replace the delay by :

 if ( milis() > mytime )  { 

   <  Put the dht stuff here > 

  mytime = millis() + dht.getMinimumSamplingPeriod() ; 

}

[n3ro]

@rvendrame

hmm :)
if is use this:

#include <MySensor.h>
#include <readVcc.h>
#include <SPI.h>
#include <DHT.h>


#define NODE_ID 10                       // ID of node
unsigned long SLEEP_TIME = 10000;        // Sleep time between reports (in milliseconds)

#define CHILD_ID_PIR 1                   // Id of the sensor PIR
#define CHILD_ID_HUM 2                   // Id of the sensor HUM
#define CHILD_ID_TEMP 3                  // Id of the sensor TEMP
#define CHILD_ID_LIGHT 4                 // Id of the sensor LIGHT

#define PIR_SENSOR_DIGITAL 3           // The digital input you attached your motion sensor.  (Only 2 and 3 generates interrupt!)
#define INTERRUPT PIR_SENSOR_DIGITAL-2 // Usually the interrupt = pin -2 (on uno/nano anyway)
#define HUMIDITY_SENSOR_DIGITAL_PIN 2
#define LIGHT_SENSOR_ANALOG_PIN 0

MySensor gw;
// Initialize Variables
MyMessage msgPir(CHILD_ID_PIR, V_TRIPPED);
MyMessage msgHum(CHILD_ID_HUM, V_HUM);
MyMessage msgTemp(CHILD_ID_TEMP, V_TEMP);
MyMessage msgLight(CHILD_ID_LIGHT, V_LIGHT_LEVEL);

DHT dht;
float lastTemp;
float lastHum;
boolean metric = true;
int oldBatteryPcnt;
int lastLightLevel;
long mytime = 0;


int MIN_V = 2700; // empty voltage (0%)
int MAX_V = 3200; // full voltage (100%)

void setup()
{
  gw.begin(NULL, NODE_ID, false);

  //PIR
  // Send the sketch version information to the gateway and Controller
  gw.sendSketchInfo("Motion Sensor", "1.0");

  pinMode(PIR_SENSOR_DIGITAL, INPUT);      // sets the motion sensor digital pin as input
  digitalWrite(PIR_SENSOR_DIGITAL, HIGH);
  // Register all sensors to gw (they will be created as child devices)
  gw.present(CHILD_ID_PIR, S_MOTION);

  //DHT
  dht.setup(HUMIDITY_SENSOR_DIGITAL_PIN);

  // Send the Sketch Version Information to the Gateway
  gw.sendSketchInfo("Humidity", "1.0");

  // Register all sensors to gw (they will be created as child devices)
  gw.present(CHILD_ID_HUM, S_HUM);
  gw.present(CHILD_ID_TEMP, S_TEMP);

  metric = gw.getConfig().isMetric;

  //LIGHT
  // Send the sketch version information to the gateway and Controller
  gw.sendSketchInfo("Light Sensor", "1.0");

  // Register all sensors to gateway (they will be created as child devices)
  gw.present(CHILD_ID_LIGHT, S_LIGHT_LEVEL);

}

void loop()
{



  // Read digital motion value
  boolean tripped = digitalRead(PIR_SENSOR_DIGITAL) == HIGH;
  Serial.print("---------- PIR: ");
  Serial.println(tripped);
  gw.send(msgPir.set(tripped ? "1" : "0")); // Send tripped value to gw


  if ( millis() > mytime )  {

    //DHT
    delay(dht.getMinimumSamplingPeriod());

    float temperature = dht.getTemperature();
    if (isnan(temperature)) {
      Serial.println("Failed reading temperature from DHT");
    } else if (temperature != lastTemp) {
      lastTemp = temperature;
      if (!metric) {
        temperature = dht.toFahrenheit(temperature);
      }
      gw.send(msgTemp.set(temperature, 1));
      Serial.print("---------- Temp: ");
      Serial.println(temperature);
    }

    float humidity = dht.getHumidity();
    if (isnan(humidity)) {
      Serial.println("Failed reading humidity from DHT");
    } else if (humidity != lastHum) {
      lastHum = humidity;
      gw.send(msgHum.set(humidity, 1));
      Serial.print("---------- Humidity: ");
      Serial.println(humidity);
    }
    // Light
    int lightLevel = (1023 - analogRead(LIGHT_SENSOR_ANALOG_PIN)) / 10.23;
    //Serial.println(lightLevel);
    if (lightLevel != lastLightLevel) {
      gw.send(msgLight.set(lightLevel));
      lastLightLevel = lightLevel;
      Serial.print("---------- Light: ");
      Serial.println(lightLevel);
    }
    // Measure battery
    float batteryV = readVcc();
    int batteryPcnt = (((batteryV - MIN_V) / (MAX_V - MIN_V)) * 100 );
    if (batteryPcnt > 100) {
      batteryPcnt = 100;
    }

    if (batteryPcnt != oldBatteryPcnt) {
      gw.sendBatteryLevel(batteryPcnt); // Send battery percentage
      oldBatteryPcnt = batteryPcnt;
    }
    Serial.print("---------- Battery: ");
    Serial.println(batteryPcnt);

    mytime = millis() + dht.getMinimumSamplingPeriod();
 
  }
     Serial.println(mytime);
  // Sleep until interrupt comes in on motion sensor. Send update every two minute.
  gw.sleep(INTERRUPT, CHANGE, SLEEP_TIME);
}

i get this output:
---------- PIR: 0
send: 10-10-0-0 s=1,c=1,t=16,pt=0,l=1,st=fail:0
6608
---------- PIR: 0
send: 10-10-0-0 s=1,c=1,t=16,pt=0,l=1,st=fail:0
6608
---------- PIR: 0
send: 10-10-0-0 s=1,c=1,t=16,pt=0,l=1,st=fail:0
6608
---------- PIR: 0
send: 10-10-0-0 s=1,c=1,t=16,pt=0,l=1,st=fail:0
6608
---------- PIR: 0
send: 10-10-0-0 s=1,c=1,t=16,pt=0,l=1,st=fail:0
send: 10-10-255-255 s=255,c=3,t=7,pt=0,l=0,st=fail:
send: 10-10-0-0 s=2,c=1,t=1,pt=7,l=5,st=fail:41.7
---------- Humidity: 41.70
send: 10-10-0-0 s=4,c=1,t=23,pt=2,l=2,st=fail:38
---------- Light: 38
---------- Battery: 100
11148
---------- PIR: 0
send: 10-10-0-0 s=1,c=1,t=16,pt=0,l=1,st=fail:0
11148
---------- PIR: 0
send: 10-10-0-0 s=1,c=1,t=16,pt=0,l=1,st=fail:0
11148
---------- PIR: 0
send: 10-10-0-0 s=1,c=1,t=16,pt=0,l=1,st=fail:0
11148
---------- PIR: 0
send: 10-10-0-0 s=1,c=1,t=16,pt=0,l=1,st=fail:0
11148
---------- PIR: 0
send: 10-10-0-0 s=1,c=1,t=16,pt=0,l=1,st=fail:0
send: 10-10-255-255 s=255,c=3,t=7,pt=0,l=0,st=fail:
---------- Battery: 100
15441
---------- PIR: 0
send: 10-10-0-0 s=1,c=1,t=16,pt=0,l=1,st=fail:0
15441
---------- PIR: 0
send: 10-10-0-0 s=1,c=1,t=16,pt=0,l=1,st=fail:0
15441
---------- PIR: 0
send: 10-10-0-0 s=1,c=1,t=16,pt=0,l=1,st=fail:0
15441
---------- PIR: 1
send: 10-10-0-0 s=1,c=1,t=16,pt=0,l=1,st=ok:1

the pir sends 0 and didnt sleep right :(

[rvendrame]

What is this number? Did you print the milis()?

send: 10-10-0-0 s=1,c=1,t=16,pt=0,l=1,st=fail:0
6608 <<<<<<

[n3ro]

@n3ro said:

Serial.println(mytime);

yes :)
Serial.println(mytime);

[rvendrame]

#define PIR_SENSOR_DIGITAL 3           // The digital input you attached your motion sensor.  (Only 2 and 3 generates interrupt!)
#define INTERRUPT PIR_SENSOR_DIGITAL-2 // Usually the interrupt = pin -2 (on uno/nano anyway)
#define HUMIDITY_SENSOR_DIGITAL_PIN 2
#define LIGHT_SENSOR_ANALOG_PIN 0

Are you connecting both DHT and PIR at same pin 2 ? That must be the cause (DHT is triggering the interruption, I think you want only the PIR to trigger it).

Edit: looks like your PIR is at pin 3 , and DHT on pin 2 --- Should be the inverse? The PIR should be on pin 2 (to trigger the interrupt).