Layrz for Developers

Examples of LCL ​

Due to the complexity of the real world, we cannot offer to you examples of everything, but, here are some examples of how to use LCL in real-case scenarios.

Want to contribute?

Send us an email at software@goldenm.com with your example and we will add it to the list.

Multiple tank level totalizer ​

For this example, we assume that your device sends the level of the tanks in tank.level.0, tank.level.1, tank.level.2, and tank.level.3. We want to calculate the total level of the tanks and send it to tank.level.

lcl
SUM(
  GET_PARAM(
    CONCAT(
      PRIMARY_DEVICE(),
      ".tank.level.0"
    ),
  ),
  GET_PARAM(
    CONCAT(
      PRIMARY_DEVICE(),
      ".tank.level.1"
    ),
  ),
  GET_PARAM(
    CONCAT(
      PRIMARY_DEVICE(),
      ".tank.level.2"
    ),
  ),
  GET_PARAM(
    CONCAT(
      PRIMARY_DEVICE(),
      ".tank.level.3"
    ),
  )
)

Let's look at the code above. We are using the SUM function to calculate the total level of the tanks. We are using the GET_PARAM function to get the level of each tank. We are using the CONCAT function to concatenate the device ident with the tank level.

Alert when the temperature is too high ​

For this example, we assume that your device has a sensor with param engine.temperature, and your tolerance of the temperature is 100 degrees. We want to send an alert when the temperature is higher than 100 degrees.

Important

Directly with a trigger, you cannot send a notification, you will need the combination of a trigger, an action and a operation to perform this.

lcl
GREATER_THAN(
  GET_SENSOR("engine.temperature", CONSTANT(0)),
  CONSTANT(100)
)

Layrz Link is our app to convert your smartphone into a GPS tracker. For this example, we will convert the SOS signal sent from the app into an alert.

Want to know more about Layrz Link?

Contact us at sales@layrz.com or via WhatsApp to +(507)-6979-3073 and we will be happy to prepare a live demo for you.

lcl
COMPARE(
  GET_PARAM(
    CONCAT(
      PRIMARY_DEVICE(),
      ".alarm.event"
    ),
  ),
  CONSTANT(1)
)