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Author: karlsoderby

content/arduino-cloud/02.features/09.advanced-chart/advanced-chart.md

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+---
+title: Multible Variable Chart Widget
+description: Learn how to use the advanced chart widget, which allows you to track several variables in real time or during a specific time period.
+author: Karl Söderby
+tags: [IoT Cloud, Charts, Data Plotting]
+---
+
+## Overview
+
+The **advanced chart widget** is used to display the data from several IoT Cloud variables in a single chart. You can track the data in both real time, or select from a specific time period.
+
+This widget can very easily be added onto existing projects (if you are already tracking data), and is particularly interesting to use in projects such as:
+- Weather station
+- Environmental data
+- Energy consumption
+- Various science projects where data comparison is needed
+
+What is particularly interesting is that this new widget can use variables from **multiple things.** So you can monitor data from various devices and plot it all in one place. 
+
+For example, you could set up a series of sensors around a city, and measure the CO2 emissions from your phone or laptop! 
+
+## Hardware & Software Needed
+
+- [Arduino IoT Cloud](https://create.arduino.cc/iot/).
+- Cloud compatible boards, [see full list](https://docs.arduino.cc/arduino-cloud/getting-started/iot-cloud-getting-started#compatible-hardware).
+
+***In this tutorial, we use the [MKR WiFi 1010]() and [MKR ENV Shield]() for environmental values. This is not a requirement, you can use any board for this tutorial.***
+
+## Setup & Configuration
+
+To use the advanced widget, you will need to set up a Thing and some variables that you want to track. We choose to set up and track:
+- `temperature`
+- `humidity`
+- `pressure`
+- `light`
+
+***If you are unfamiliar with how to set up a Thing and variables, head on over to the [Getting Started with the Arduino IoT Cloud](/arduino-cloud/getting-started/iot-cloud-getting-started) article.***
+
+**1.** Head on over to the **"Dashboards"** in the Arduino IoT Cloud, and create a new dashboard (or use an existing dashboard).
+
+**2.** Add a new **"Advanced Chart Widget"**, selecting it from the list of available widgets. 
+
+**3.** Link the variables you want to compare. In this case, we are using `temperature`, `humidity`, `pressure` and `light`.
+
+![Link variables.]()
+
+>You can use up to a maximum of 5 variables.
+
+**4.** After selection, your variables will appear in the right panel, with a number of configuration options. You can for example choose how each data point will be represented (line, spline, spline area, line area and bar). 
+
+![Advanced chart widget configuration.](assets/widget-config.png)
+
+**5.** Click on **"Done"** when finished selecting the variables. If your board is connected and is sending data to the cloud, you will see the widget's data update frequently.
+
+## Usage
+
+With the widget set up, let's explore some cool features.
+
+### Toggle Variables
+
+You can enable or disable to variables you want to display by simply clicking the name of the variable.
+
+![Toggle variables.](assets/advanced-chart-toggle.gif)