Rule Examples/en: различия между версиями

For example, a rule can turn on a siren and a lamp if a motion sensor detects movement.  

In the example, the motion sensor is connected to the "dry contact" input, control type "switch". The siren is connected to the built-in Wiren Board relay, and the lamp is connected to the relay box via Modbus. When the "dry contact" input (motion sensor output) is closed, "1" is supplied to the lamp and the relay, and "0" when it is off.

The rule is triggered every time the control value "D1_IN" of the device "wb-gpio" is changed. The new value of this control is passed to the rule code as a variable newValue.

<syntaxhighlight lang="ecmascript">

defineRule({

   whenChanged: "wb-gpio/D1_IN",

dev["wb-gpio"]["Relay_2"] = newValue;

dev["wb-mrm2_6"]["Relay 1"] = newValue;

   }

});

defineRule("simple_switch", {

   whenChanged: "simple_test/enabled",

dev["wb-gpio"]["Relay_2"] = newValue;

dev["wb-mrm2_6"]["Relay 1"] = newValue;

   }

=== Motion detection with timeout ===

A motion detector with a "dry contact" output is connected to input D2. When motion is detected, it shorts D2 and GND and status "1" appears on the corresponding <code>wb-gpio/D2_IN</code> channel.

The lighting is connected via a built-in relay corresponding to the <code>wb-gpio/Relay_1</code> channel.

The rule works like this:

* when movement appears, the light turns on. If a thirty-second "off" timer was previously started, this timer is disabled;

* when motion is lost, a thirty second "off" timer is started. If he manages to reach the end, the light turns off.

<syntaxhighlight lang="ecmascript">

var motion_timer_1_id = null;

defineRule("motion_detector_1", {

     whenChanged: "wb-gpio/D2_IN",

});

</syntaxhighlight>

=== Creating similar rules ===

If you need several such motion detectors, then in order not to copy the code, you can wrap the creation of the rule and variables in a function:

<syntaxhighlight lang="ecmascript">

  function makeMotionDetector(name, timeout_ms, detector_control, relay_control) {

                   clearTimeout(motion_timer_id);

               }

                   dev["wb-gpio"][relay_control] = false;

                   motion_timer_id = null;

   });

}

makeMotionDetector("motion_detector_1", 20000, "EXT1_DR1", "EXT2_R3A1");

     date_start.setMinutes(30);

     var date_end = new Date(date);

     date_end.setHours(17);

});

</syntaxhighlight>

=== Rolling shutters ===

   var relay_down_control = "Relay 2";

    

   // End of settings

         relay_up_timer_id = clearTimeout(relay_up_timer_id);  

       };

         return dev[relay_up_device][relay_up_control] = 0;

       }, timeout_s * 1000);

     }

   });

     asSoonAs: function() {

       return dev[relay_down_device][relay_down_control];

     }

   });

     asSoonAs: function() {

       return dev[relay_up_device][relay_up_control] && dev[relay_down_device][relay_down_control];

         relay_up_timer_id = clearTimeout(relay_up_timer_id);  

       };

       if (relay_down_timer_id) {

        

       dev[relay_down_device][relay_down_control] = 0;

       log("Both roller shutter relays on, switching them off");

})();

</syntaxhighlight>

An older version of the same script demonstrates the use of aliases:

});

defineRule("water_meter_1", {

     whenChanged: "wb-mcm8_29/Input 1 counter",

});

</syntaxhighlight>

== Handling click counters ==

         var co2_bad = newValue > 1001;

             dev[devName]["Green LED"] = true;

             dev[devName]["Red LED"] = false;

=== Max Motion ===

"Max Motion" - the maximum value of the motion sensor for N time. Time from 1 to 60 seconds can be set in register 282. The default is 10 seconds. When the Max Motion value reaches 50, we check whether the room is sufficiently lit, if not, turn on the light. As soon as the Max Motion value drops below 50, turn off the light.

<div class="NavFrame">

   <div class="NavContent">

});

</syntaxhighlight>

</div>

</div>

defineRule("_system_track_vin", {

     whenChanged: "wb-adc/Vin",

     }

});

defineRule("_system_dc_on", {

   asSoonAs: function () {

   }

});

defineRule("_system_dc_off", {

   asSoonAs: function () {

   }

});

</syntaxhighlight>

Not cron-rules are used for schedules, but  the libschedule. The libschedule enables and disables rules, which, unlike cron rules, are executed continuously when enabled.

For example, we want the lighting to be on from 10 to 17h. The libschedule will follow the "turn on the lights" rule once a minute from 10 am to 17 PM.

This means that even if the controller is running intermittently and missed the transition time between schedules (10 am), the controller will still turn on the lights at the first opportunity.