This article will show you how to connect your Arduino IoT Cloud to an IFTTT webhook. As an example, we'll configure a webhook to send data to an email address when a variable is changed.

You will need:

• An Arduino account
• An IFTTT account
• A 'Thing' that you want to configure with IFTTT.

For a general overview of Arduino IoT Cloud, see this page.

Creating an applet in IFTTT

First, we'll create an applet in IFTTT that will send an email when triggered by a webhook.

1. Open maker.ifttt.com and sign in if prompted.

2. Click Create in the top right. Select If This.

3. In the search field, enter 'Webhooks' and select that service.

4. Select Receive a web request.

5. In the Event Name field, enter counter_change.

6. Click the Create trigger button.

7. Now, click on Then That. Select the Email service.

8. Choose the Send me an email action. If this is your first time setting up an email action, click Connect, and proceed with the configuration as instructed on IFTTT.

9. We can now configure the content of the email. The subject and body fields can be left as is, or changed to your preference. {{Value1}}, {{Value2}} and {{Value3}} will correspond to the variable name (ifttt_counter), the new value, and a timestamp of the change, respectively. Finally, click Create action.

10. Both the trigger and action have now been configured. Click Continue.

11. Optionally, change the applet title, and click Finish to create the applet.

12. Click on your profile picture in the top right, then click My services. Choose webhooks and click on Documentation in the upper right.

    

13. Write counter_change in {event} field and copy the URL from the curl command (we'll use it in the next section).

Creating a Thing in Arduino IoT Cloud

Next, we'll create a Thing that will use the webhook to trigger the IFTTT applet.

1. Go to Arduino IoT Cloud. If prompted, sign in to your Arduino account.

2. In the Things tab, click CREATE THING.

3. Initially, the title will be set to 'Untitled'. Click on it and give it a name.

4. Click ADD and enter the following values:

   • Name: ifttt_counter
   • Variable type: Counter
   • Variable Permission: Read & Write
   • Variable Update Policy: On change
   • Threshold: 1

   Click ADD VARIABLE to create the variable.

5. With the variable created, click Set webhook at the bottom left of the page.

   

6. Paste the URL inside the Webhook URL field and click SET WEBHOOK.

7. Open the Dashboards tab, then either open an existing dashboard or click BUILD DASHBOARD.

   

8. Enable the editing mode (notebook symbol) and click ADD. Under the THINGS tab, select the thing you created. Click CREATE WIDGETS with ifttt_counter selected. Make sure that the step size is set to 1.000. Click DONE.

   

9. Test the webhook and IFTTT applet by increasing the counter value. You should receive an email shortly.

Troubleshooting

If you're not receiving any emails, make sure that

• you've set a webhook in your thing.
• that the {{event name}} in the webhook URL is the same as the event name in the IFTTT web request trigger.