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Author: karlsoderby

content/arduino-cloud/01.getting-started/07.arduino-cloud-callbacks/arduino-cloud-callbacks.md

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+---
+title: 'IoT Cloud Event & Callbacks'
+description: 'Learn how to subscribe to events and add callback functions.'
+tags: [IoT Cloud, Variables]
+author: 'Karl Söderby'
+---
+
+The [Arduino IoT Cloud](https://create.arduino.cc/iot/) has support for events and callbacks. This can be used to trigger specific functionalities depending on what state your device is in. 
+
+You can for example trigger a specific block of code whenever the board is in a connecting, synchronized or disconnected state. In this brief document, we will explore how to set it up, using an example from the [ArduinoIoTCloud](https://github.com/arduino-libraries/ArduinoIoTCloud/blob/master/examples/ArduinoIoTCloud-Callbacks/ArduinoIoTCloud-Callbacks.ino) library.   
+
+## Full Example
+
+The example below demonstrates the available callback 
+
+## Summary
+
+In this article, we have covered how to use variables in the Arduino IoT Cloud, and what variables are available.
+