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page	Simple Iot Tutorial

Panel

title	Goal

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In the previous tutorial we created a list of 2 sensors. In this tutorial we're going to create an organ which will make sensors for us and 2 two automates to handle this new list.

System architecture:

Panel

title	Requirements

To follow this tutorial you must have done the Basic Equipment Tutorial.

Panel

title	The automate model

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In this part we will create a new model, named an "automate", that will be in charge of a group of sensors. This model needs 2 attributes:

name: so we can create multiple automates and identify them
sensors: an array of the sensors that are managed by this automate

We're going to add an empty array named automates as property of the SensorListModel and create a model Automate with the two previously described attributes.

spinal-models/models.js

Code Block

language	js
theme	DJango
linenumbers	true

class SensorModel extends Model {
  constructor() {
    super();
    this.add_attr({
      id: 0,
      name: "",
      hydrometryhygrometry: 0,
      temperature: 0,
      pressed: false
    });
  }
}
module.exports.SensorModel = SensorModel;

class SensorListModel extends Model {
  constructor() {
    super();
    this.add_attr({
      sensors: [],
      automates: []
    });
  }
}
module.exports.SensorListModel = SensorListModel;

// Automate model
class AutomateModel extends Model {
  constructor() {
    super();
    this.add_attr({
      name: "",
      sensors: []
    });
  }
}
module.exports.AutomateModel = AutomateModel;

Panel

title	The createSensor organ

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Before we can use our new model we're going to need sensors for them to handle.

The createSensor organ will create 10 virtual sensors in a new list stored as in the file "Automate".

createSensor/index.js

Code Block

language	js
theme	DJango
linenumbers	true

// Requirements and connection
const spinalCore = require('spinal-core-connectorjs');
const models = require('../spinal-models/models.js');

console.log("Configuration Environment not found, using default config");
process.env.SPINALHUB_PORT = 7777;
process.env.SPINALHUB_IP = "127.0.0.1";
process.env.SPINAL_USER_ID = 168;
process.env.SPINAL_PASSWORD = "JHGgcz45JKilmzknzelf65ddDadggftIO98P";

const conn = spinalCore.connect(`http://${process.env.SPINAL_USER_ID}:${process.env.SPINAL_PASSWORD}@${process.env.SPINALHUB_IP}:${process.env.SPINALHUB_PORT}/`);

//  We load our automate
spinalCore.load(conn, "Automate", function (automate) {
  // callback success
}, function () {
  // callback error: We create a new list
  const list = new models.SensorListModel();
  spinalCore.store(conn, list, "Automate", function () {
    addItem(list);
  });
}
);

//  We add 10 new equipments to the list
function addItem(list) {
  for (let i = 0; i < 10; i++) {
    let item = new models.SensorModel();

    item.id.set(i);
    item.name.set("equipment" + i);
    item.hydrometryhygrometry.set(Math.floor(Math.random() * 30));
    item.temperature.set(Math.floor(Math.random() * 100));
    list.sensors.push(item);
  }
}

You can test it to see if it is working fine.

A new list file named "Automate" should have appeared in the admin UI, put . Drag&Drop it in the inspector.

You can see that the sensors sensor array contains 10 sensor sensors whereas the automate array is still empty.

At this point in this tutorial our spinal system looks like this:

Panel

title	Simulate sensors with automates

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	4

We are now going to create 2 automates. Each one will be in charge of 5 sensors from the list. Both will periodically choose one of their sensors and change its hydrometry hygrometry and temperature.

Automate 1

automate1/index.js

Code Block

language	js
theme	DJango
linenumbers	true

// Requirements and connection
const spinalCore = require('spinal-core-connectorjs');
const models = require('../spinal-models/models.js');

console.log("Configuration Environment not found, using default config");
process.env.SPINALHUB_PORT = 7777;
process.env.SPINALHUB_IP = "127.0.0.1";
process.env.SPINAL_USER_ID = 168;
process.env.SPINAL_PASSWORD = "JHGgcz45JKilmzknzelf65ddDadggftIO98P";

const conn = spinalCore.connect(`http://${process.env.SPINAL_USER_ID}:${process.env.SPINAL_PASSWORD}@${process.env.SPINALHUB_IP}:${process.env.SPINALHUB_PORT}/`);

// Loading the list
spinalCore.load(conn, "Automate", function (list) {
// callback success: if the array of automates is empty we create a first automate, else we press the first automate
  if (list.automates.length < 1)
    addAutomate(list);
  press(list.automates[0]);
}, function () {
// callback error
});

// Adds an automate to the list and attributes him the first 5 equipments
function addAutomate(list) {
  var automate1 = new models.AutomateModel();

  automate1.name.set("automate0");
  for (let i = 0; i < 5; i++) {
    automate1.sensors.push(list.sensors[i]);
  }
  list.automates.push(automate1);
}

// Randomly selects a sensor in the list and changes its hydrometryhygrometry and temperature
function press(automate) {
  let selectedEquipment = Math.floor(Math.random() * 5);
  const sensor = automate.sensors[selectedEquipment];
  let hydro = Math.floor(Math.random() * 100);
  let degrees = Math.floor(Math.random() * 30);

  sensor.hydrometryhygrometry.set(hydro);
  sensor.temperature.set(degrees);

// Repeats every second
  setTimeout(function () {
    console.log("automate1: has been pressed");
    press(automate);
  }, 1000);
}

Automate 2

Automate2 will be almost identical to automate1 so I suggest you start by copying automate1 and modify the file as follow.

Code Block

language	js
theme	DJango
linenumbers	true

// Requirements and connection
const spinalCore = require('spinal-core-connectorjs');
const models = require('../spinal-models/models.js');

console.log("Configuration Environment not found, using default config");
process.env.SPINALHUB_PORT = 7777;
process.env.SPINALHUB_IP = "127.0.0.1";
process.env.SPINAL_USER_ID = 168;
process.env.SPINAL_PASSWORD = "JHGgcz45JKilmzknzelf65ddDadggftIO98P";

const conn = spinalCore.connect(`http://${process.env.SPINAL_USER_ID}:${process.env.SPINAL_PASSWORD}@${process.env.SPINALHUB_IP}:${process.env.SPINALHUB_PORT}/`);

// Loading the list
spinalCore.load(conn, "Automate", function (list) {
  // callback success: if the array of automates is empty we create a first automate, else we press the first automate
  if (list.automates.length < 2)
    addAutomate(list);
  press(list.automates[1]);
}, function () {
  // callback error
});

// Adds an automate to the list and attributes him the first 5 sensors
function addAutomate(list) {
  var automate = new models.AutomateModel();

  automate.name.set("automate1");
  for (let i = 5; i < 10; i++) {
    automate.sensors.push(list.sensors[i]);
  }
  list.automates.push(automate);
}

// Randomly selects a sensor in the list and changes its hydrometryhygrometry and temperature
function press(automate) {
  let selectedSensor = Math.floor(Math.random() * 5);
  const sensor = automate.sensors[selectedSensor];
  let hydro = Math.floor(Math.random() * 100);
  let degrees = Math.floor(Math.random() * 30);

  sensor.hydrometryhygrometry.set(hydro);
  sensor.temperature.set(degrees);

  // Repeats every second
  setTimeout(function () {
    console.log("automate2: has been pressed");
    press(automate);
  }, 1000);
}

Panel

title	Test your system

Anchor

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	5

Don't forget to add all this new organs to your .apps.json if it isnyou wan't already doneto use pm2 to launch them.

.apps.json

Code Block

language	js
theme	DJango
linenumbers	true

{
  "apps": [
    {
      "name": "spinal-core-hub",
      "script": "spinalhub.js",
      "cwd": "./nerve-center/"
    },
    {
      "name": "createSensor",
      "script": "index.js",
      "cwd": "./createSensor/"
    },
    {
      "name": "automate1",
      "script": "index.js",
      "cwd": "./automate1/"
    },
    {
      "name": "automate2",
      "script": "index.js",
      "cwd": "./automate2/"
    }
  ]
}

2 new automates with 5 sensors each should have appeared in your list. You can compare the sensors in the array and those in the automates to verify that they correspond.

Panel

title	Create warnings

Anchor

	6
	6

We now have 2 automates that change the data of their sensors. Let's add analytic to the press function to catch those modifications.

We will change the press function in both so that when the hydrometry hygrometry exceeds 70% or the temperaturetemperature exceeds 20°, it will create a alert log.

automate1/index.js

Code Block

language	js
theme	DJango
linenumbers	true

function press(automate) {
  const selectedSensor = Math.floor(Math.random() * 5);
  const sensor = automate.sensors[selectedSensor];
  const hydro = Math.floor(Math.random() * 100);
  const degrees = Math.floor(Math.random() * 30);

  sensor.hydrometryhygrometry.set(hydro);
  sensor.temperature.set(degrees);
  //  If the sensor's hydrometryhygrometry or temperature are above certain value we send a message and press the sensor
  if (hydro > 70 || degrees > 20) {
    sensor.pressed.set(true);
    console.log("Alert: " + sensor.name.get() + " warning");
  } else
    // Else we release the sensor
    sensor.pressed.set(false);

  setTimeout(function () {
    console.log("automate1: has been pressed");
    press(automate);
  }, 1000);
}

automate2/index.js

Code Block

language	js
theme	DJango
linenumbers	true

function press(automate) {
    const selectedEquipment = Math.floor(Math.random() * 5);
    const sensor = automate.sensors[selectedEquipment];
    const hydro = Math.floor(Math.random() * 100);
    const degrees = Math.floor(Math.random() * 30);

    sensor.hydrometryhygrometry.set(hydro);
    sensor.temperature.set(degrees);
    if (hydro > 70 || degrees > 20) {
        sensor.pressed.set(true);
        console.log("Alert: " + sensor.name.get() + " warning");
    } else
        sensor.pressed.set(false);

    setTimeout(function () {
        console.log("automate2: has been pressed");
        press(automate);
    }, 1000);
}

Now use pm2 restart and pm2 log to see when an equipment is in dangerunder alarm.

Code Block

language	bash
theme	DJango

~/button-system$ pm2 restart launch.config.js
~/button-system$ pm2 log

Conclusion

In this tutorial you learned how to:

Automatically create sensors using an organ
Created 2 automates to handle sensors
Made those automates display warnings if a problem occurs

This tutorial will be continued in Get your Automate in the viewer.

...

Versions Compared

Old Version 33

New Version 34

Key

Table of contents

Quick navigation

System architecture:

Automate 1

Automate 2

Conclusion

Page Comparison

Versions Compared

Old Version 33

New Version 34

Key

Table of contents

Quick navigation

System architecture:

Automate 1

Automate 2

Conclusion