Cobine working DHT22 and LDR with a RelayWithButtonActuator

[Dick]

three errors. hope you can give an advise!

In function 'void loop()':

laatste:163: error: 'msg' was not declared in this scope

   gw.send(msg.set(state?false:true), true); // Send new state and request ack back

At global scope:

laatste:172: error: expected declaration before '}' token

In function 'void setup()':

laatste:47: error: 'incomingMessage' was not declared in this scope

gw.begin(incomingMessage, AUTO, true);

[BartE]

@Dick
laatste:163: error: 'msg' was not declared in this scope

msg should become msgLight

gw.send(msgLight.set(state ? false : true), true); // Send new state and request ack back

and move one } just below this line

gw.wait(HEARTBEAT); //sleep a bit
}
}

to the very end of you sketch

[Dick]

no errors anymore. I test the script now and will also put the changes you posted befor.

[Dick]

tested and also add the changes of your message (9hrs ago).
What I see on the serial monitor is, temp (2x), hum (2x) and light level but nothing of the relay. it is still clicking but no change in the logging from 1 to 0 etc. I already adjusted the script this morning with the 'RelayWithButtonActuator Example'. so only the relay part is not working and not visible in the serial log. Any idea?

[BartE]

@Dick are you sure it's not a hardware (wire) issue?

What happens if you load the RelayWithButtonActuator example code (with the correct pinning of course) ?

[Dick]

here the latist version but not working

#include <SPI.h>
 #include <MySensor.h>
 #include <DHT.h>
 #include <Bounce2.h>

#define CHILD_ID_HUM1 0
 #define CHILD_ID_HUM2 1
 #define CHILD_ID_TEMP1 3
 #define CHILD_ID_TEMP2 4

#define CHILD_ID_LIGHT 0
 #define LIGHT_SENSOR_ANALOG_PIN A0

// RelayWithActuator stuff
 #define RELAY_PIN 5 // Arduino Digital I/O pin number for relay
 #define BUTTON_PIN 6 // Arduino Digital I/O pin number for button
 #define CHILD_ID 5 // Id of the sensor child
 #define RELAY_ON 1
 #define RELAY_OFF 0
 Bounce debouncer = Bounce();
 
int oldValue=0;

 bool state;
 MySensor gw;
MyMessage msgLight(CHILD_ID,V_LIGHT);
MyMessage msgLightLevel(CHILD_ID_LIGHT, V_LIGHT_LEVEL);
 int lastLightLevel;

#define HEARTBEAT 10
 unsigned int timer = 0;
 // Sleep time between reads (in milliseconds)
 #define SLEEP_TIME 3000

DHT* dht[2];
 byte sensorPin[2] = {3, 4};
 float lastTemp[2] = {0.0, 0.0};
 float lastHum[2] = {0.0, 0.0};

boolean metric = true;
//MyMessage msgHum(CHILD_ID_HUM1, V_HUM);
//MyMessage msgTemp(CHILD_ID_TEMP1, V_TEMP);

void setup()
 {

gw.begin(incomingMessage, AUTO, true);
 
 gw.sendSketchInfo("HumidityAndRelay", "1.0");
 
 for (int i = 0; i < 2; i++)


 
 {
 dht[i] = new DHT;
 dht[i]->setup(sensorPin[i]);
 }



gw.present(CHILD_ID_HUM1, S_HUM);
 gw.present(CHILD_ID_HUM2, S_HUM);
 gw.present(CHILD_ID_TEMP1, S_TEMP);
 gw.present(CHILD_ID_TEMP1, S_TEMP);

// Setup the button and Activate internal pull-up
 pinMode(BUTTON_PIN,INPUT);
// Activate internal pull-up
  digitalWrite(BUTTON_PIN,HIGH);

  pinMode(LIGHT_SENSOR_ANALOG_PIN, INPUT);


// After setting up the button, setup debouncer
 debouncer.attach(BUTTON_PIN);
 debouncer.interval(5);

// Register all sensors to gw (they will be created as child devices)
 gw.present(CHILD_ID, S_LIGHT);

// Make sure relays are off when starting up
 digitalWrite(RELAY_PIN, RELAY_OFF);
 // Then set relay pins in output mode
 pinMode(RELAY_PIN, OUTPUT);

 pinMode(LIGHT_SENSOR_ANALOG_PIN, INPUT);

// Set relay to last known state (using eeprom storage)
 state = gw.loadState(CHILD_ID);
 digitalWrite(RELAY_PIN, state?RELAY_ON:RELAY_OFF);

timer = 0;
 metric = gw.getConfig().isMetric;
 }
 
void loop()
 {
 gw.process();
 timer++;

if (timer > (SLEEP_TIME / HEARTBEAT))
 {
 // Reset timer again and for the next timed loop
 timer = 0;
 for (int i = 0; i < 2; i++)
 {
 delay(dht[i]->getMinimumSamplingPeriod());
 float temperature = dht[i]->getTemperature();
 if (isnan(temperature))
 {
 Serial.print(F("Failed reading temperature from DHT"));
 Serial.println(i);
 }
 else if (temperature != lastTemp[i])
 {
 lastTemp[i] = temperature;
 if (!metric)
 {
 temperature = dht[i]->toFahrenheit(temperature);
 }
//gw.send(msgTemp.set(temperature, i));
 Serial.print(F("T"));
 Serial.print(i);
 Serial.print(F("= "));
 Serial.println(temperature);
 }
 float humidity = dht[i]->getHumidity();
 if (isnan(humidity))
 {
 Serial.print("Failed reading humidity from DHT");
 Serial.println(i);
 }
 else if (humidity != lastHum[i])
 {
 lastHum[i] = humidity;
//gw.send(msgHum.set(humidity, 1));
 Serial.print(F("H"));
 Serial.print(i);
 Serial.print(F("= "));
 Serial.println(humidity);
 }

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

 }

  
}




debouncer.update();
  // Get the update value
  int value = debouncer.read();
  if (value != oldValue && value==0) 
  
  {
      gw.send(msgLight.set(state ? false : true), true); // Send new state and request ack back
  }
  
  oldValue = value;
 


gw.wait(HEARTBEAT); //sleep a bit
 }
 }

void incomingMessage(const MyMessage &message) 
{
 // We only expect one type of message from controller. But we better check anyway.
 if (message.isAck()) 
 {
 Serial.println("This is an ack from gateway");
 }

if (message.type == V_LIGHT) 
{
 // Change relay state
 state = message.getBool();
 digitalWrite(RELAY_PIN, state?RELAY_ON:RELAY_OFF);
 // Store state in eeprom
 gw.saveState(CHILD_ID, state);
 // Write some debug info
 Serial.print("Incoming change for sensor:");
 Serial.print(message.sensor);
 Serial.print(", New status: ");
 Serial.println(message.getBool());


}

} 
 

[BartE]

@Dick

Change these lines

    oldValue = value;
    gw.wait(HEARTBEAT); //sleep a bit
  }
}

to

    oldValue = value;
  }
  gw.wait(HEARTBEAT); //sleep a bit
} 

[Dick]

and about the test of the RelayWithButtonActuator Example,
it works fine. I adjust the lines now and will test it

[Dick]

tested but still clicking relay. As you can see that there is nothing to see in the serial log

send: 4-4-0-0 s=255,c=3,t=15,pt=2,l=2,sg=0,st=ok:0
send: 4-4-0-0 s=255,c=0,t=18,pt=0,l=5,sg=0,st=ok:1.5.4
send: 4-4-0-0 s=255,c=3,t=6,pt=1,l=1,sg=0,st=ok:0
read: 0-0-4 s=255,c=3,t=6,pt=0,l=1,sg=0:M
repeater started, id=4, parent=0, distance=1
send: 4-4-0-0 s=255,c=3,t=11,pt=0,l=16,sg=0,st=ok:HumidityAndRelay
send: 4-4-0-0 s=255,c=3,t=12,pt=0,l=3,sg=0,st=ok:1.0
send: 4-4-0-0 s=0,c=0,t=7,pt=0,l=0,sg=0,st=ok:
send: 4-4-0-0 s=1,c=0,t=7,pt=0,l=0,sg=0,st=ok:
send: 4-4-0-0 s=3,c=0,t=6,pt=0,l=0,sg=0,st=ok:
send: 4-4-0-0 s=3,c=0,t=6,pt=0,l=0,sg=0,st=ok:
send: 4-4-0-0 s=5,c=0,t=3,pt=0,l=0,sg=0,st=ok:
T0= 22.20
H0= 61.80
send: 4-4-0-0 s=0,c=1,t=23,pt=2,l=2,sg=0,st=ok:74
L=74
T1= 25.00
H1= 60.20
send: 4-4-0-0 s=0,c=1,t=23,pt=2,l=2,sg=0,st=ok:74
L=74
send: 4-4-0-0 s=0,c=1,t=23,pt=2,l=2,sg=0,st=ok:74
L=74
send: 4-4-0-0 s=0,c=1,t=23,pt=2,l=2,sg=0,st=ok:76
L=76

[BartE]

@Dick If there is nothing visible in the log, then you can presume there is a hardware issue.

Some possible issues:

• loose relays wire (bad connection) --> try a different wire
• wrong pin is used (if set as input the pin will "float" resulting in unstable relay behaviour) --> double check your pin number in code and actual PCB
• pin double used ie the DHT drive poll this pin for some reason. --> use a different pin in both code and conection to relay

[Dick]

thank you BartE, I received today an new Uno and some other stuff so I can rebuild it al to see if it is an HW failure. I hope I can start tomorrow. I keep you informed but thanks for your support. to be continued.

[BartE]

@Dick Not sure what your approach is but normally i start with prototyping using these wires and when all works fine (software and hardware) i solder everything together on a PCB.