Mobile alerting with tracking, duty planning and escalation for Particle

Tags: #<Tag:0x00007fe222451b70>


I just finished my first Particle project. It is about integrating the app-based alerting service SIGNL4 via Webhook. Here you go …

Mobile alerting with tracking & escalation for Particle

Mobile alerting with tracking, duty planning and escalation for Particle.

How it Works

All it takes to pair Particle and SIGNL4 is a Webhooks Integration in your Particle console and one simple line of code deployed to your IoT devices. This allows to call the SIGNL4 webhook and to trigger an according alert.

Integration Capabilities

  • Service engineers alerted via mobile push, text and voice
  • Integration with SIGNL4 via webhook or email (SMTP)
  • Staff can acknowledge and take ownership for critical events that occur
  • Alerts are escalated in case of no response
  • Communicate within an alert to address a particular problem
  • Tracking and visibility of problem solutions
  • Integrated on-call duty planning
  • Alert on critical IoT device states
  • Two-way integration to interact or set the device state


  • Industrial IoT
  • Industry 4.0
  • IoT Service Alerting
  • IoT Device Management
  • IT, Manufacturing, Utility, Oil and Gas, Agriculture, etc.

How To Integrate

Integrating SIGNL4 with Particle

In our example we integrate a Particle Photon device with an IR motion sensor and a temperature sensor. Whenever a motion (e.g. an intruder) is detected we send an alert to our SIGNL4 team.

SIGNL4 is a mobile alert notification app for powerful alerting, alert management and mobile assignment of work items. Get the app at


A SIGNL4 ( account

An Particle account

A Particle Maker Kit

Integration Steps

  1. Assemble the Device

In our case we use the Particle Maker Kit with a Photon device to connect an IR motion sensor ans a temperature sensor. We also use an LED to indicate the motion detection directly on the device.

You can see the assembled device on the image above. You can find a good description on how to connect the sensors in the Maker Kit tutorial.

  1. Connect the Device

Now you can connect your device to the Particle IoT platform. This is easily done by using the Particle app.

Now you can see your new device in the Particle Console under Devices.

  1. Configure the Webhook

In the Particle Console under Integrations you can now create a new Webhook in order to send alerts to SIGNL4.

You can create a new Webhook and then use the SIGNL4 webhook URL.

The name is “photon-motion” and it is a JSON POST. The URL is:{team-secret}

The {team-secret} ist your SIGNL4 team secret.

Under Custom Template you can insert your JSON data template as to be sent to SIGNL4.

    "event": "photon-motion",
    "deviceID": "37002a000847373336323230",
    "url": "",
    "requestType": "POST",
    "noDefaults": true,
    "rejectUnauthorized": true,
    "json": {
        "subject": "{{{subject}}}",
        "temperature": "{{{temperature}}}"
  1. Deploy the Code

You can now go to the Web IDE to deploy the code to your device(s). You can find the complete code at GitHub below.

The two main lines to send the SIGNL4 alert are the following.

String data = "{ \"subject\": \"Motion detected.\", \"temperature\": \"" + temperature() + "\" }";

Particle.publish("photon-motion", data, 60, PUBLIC);

First, we assemble the date to become part of the webhook JSON data. And second, we send the date to the “photon-motion” Webhook we have created above.

  1. Test It

This is it. You can now test your IoT scenario by simulating a motion. You will then receive an alert in your SIGNL4 app.

You can find a sample in GitHub:


nice integration and thank you for telling everyone about it (and about SIGNL4)!