Configuration with finder 26.02

[Neorevolution (Luca)]

Good evening guys I’m here to ask you for advice on how to set openhab3,
I have a configuration with a relay finder 26.02 so on one pin I have the status of the light on the other I have the relay that activates it with a pulse.
how should i ect everything on openhab3?
if set as a switch, the light turns on but the timane status is always off

[rossko57]

You might find the ideas in this thread helpful

Momentary Button state

It’s not that clear what you are trying to do. I use impulse relays too. I represent the On/Off state with a Switch Item. I represent the pulse output with a completely separate Switch Item, and a rule that turns off the pulse after a short while. In my case I have hardware to read the state of the real light circuit, if you do not have that you will have to use a toggle rule instead like I suggested before. Problem with that is that it may or may not start up the right way round. I reall…

The important part is using two Items -one to represent on/off state, one for control pulses.

[Neorevolution (Luca)]

How do I merge the status to the relay into one control?

[rossko57]

@Neorevolution

How do I merge the status to the relay into one control?

Don’t. Don’t put the “pulse” Item on your GUI at all, it is of no use there. Only show your “status” Item.

[Neorevolution (Luca)]

@rossko57

Don’t. Don’t put the “pulse” Item on your GUI at all, it is of no use there. Only show your “status” Item.

Okay, but if I don’t show the pulse I can’t control it

[rossko57]

@Neorevolution

if I don’t show the pulse I can’t control it

You may have missed the idea of a rule being necessary. The ‘real’ Item shows only status, but you can send it commands from GUI or other rules. Nothing happens. But you can create a rule that listens for commands to this ‘real’ Item, and acts by sending commands to the ‘pulse’ Item. This the part that simulates button-pushing and activates your device. Don’t forget it must also simulate button-releasing.

You don’t need to see the pulse Item anywhere to have it worked by a rule.

[Neorevolution (Luca)]

Thank you. how can i create the rule?
I tried like this but it doesn’t work …

configuration: {}
triggers:
  - id: "1"
    configuration:
      itemName: NodemcuStudio_StatoLuceStudio
    type: core.ItemStateChangeTrigger
conditions: []
actions:
  - inputs: {}
    id: "2"
    configuration:
      type: application/javascript
      script: >-
        var Exec = Java.type("org.openhab.core.model.script.actions.Exec");

        var logger = Java.type("org.slf4j.LoggerFactory").getLogger("org.openhab.rule." + ctx.ruleUID);

        var HttpUtil = Java.type("org.openhab.core.io.net.http.HttpUtil")

        var switchluce = itemRegistry.getItem('NodemcuStudio_StatoLuceStudio').getState();

        logger.info("posizione switch " + switchluce);

        if (switchluce == 'ON'){

        logger.info("If ON");
          ReleLuce_LuceStudio.sendCommand(ON)
        logger.info("Accendi richiesta " + HttpUtil);

        } else if (switchluce == 'OFF'){
          ReleLuce_LuceStudio.sendCommand(ON)
        logger.info("Spegni richiesta " + HttpUtil);

        }
    type: script.ScriptAction

[rossko57]

@Neorevolution

I tried like this but it doesn’t work …

We don’t know what any of your Items represent. If you expect the rule to do something when you send a command, you would need to change the rule trigger. If you want help, we’ll need more than “doesn’t work”. You can find out if the rule runs at all, for example, or just doesn’t do what you expected. Making log messages from your rule are really helpful to see progress and internal values. You’ve done that but not told us the results - “no results” tells us something too. Looking in your openhab.log for messages, and your events.log to see what is done, might help.

I don’t use javascript rules, but you should be able to see the idea here

Momentary Button state

a simple cheap Chinese relay, 240V coil wired across the end lighting circuit. You do need some contact type binary input to OpenHAB for each channel - a spare GPIO pin, or in my case Modbus discrete inputs. Some impulse relays have a spare pole that could be used. If you don’t provide some kind of feedback like this, OpenHAB can never be sure if the lights are on or off to begin with. A bonus is that I can detect when an impulse relay has been activated by a wall button, rather than by Op…

You must do the “un-pushing” of your simulated pushbutton too. You might do that with a timer from rule, or by Item ‘expire’ property, or like I show there, by a rule that sees when the light status changes and “stops pushing the button”.

[Neorevolution (Luca)]

thank you
solution:

var Exec = Java.type("org.openhab.core.model.script.actions.Exec");
var logger = Java.type("org.slf4j.LoggerFactory").getLogger("org.openhab.rule." + ctx.ruleUID);
var HttpUtil = Java.type("org.openhab.core.io.net.http.HttpUtil")
var switchluce = itemRegistry.getItem('NodemcuStudio_StatoLuceStudio').getState();

logger.info("posizione switch " + switchluce + " Evento= " + event.itemCommand);
if (event.itemCommand == 'ON' && switchluce == 'OFF'){
      logger.info("If ON OFF");
      events.sendCommand("NodemcuStudio_LuceStudio",ON)   
    
} else if (event.itemCommand == 'OFF' && switchluce == 'ON') {
   logger.info("If OFF ON");
     events.sendCommand("NodemcuStudio_LuceStudio",ON)
     
   }        // else already in requested state

[rossko57]

Don’t forget the “un-push” part after the required action.