{"id":3080,"date":"2025-07-26T14:23:08","date_gmt":"2025-07-26T14:23:08","guid":{"rendered":"https:\/\/learnbydoing.dev\/?p=3080"},"modified":"2026-01-19T18:03:58","modified_gmt":"2026-01-19T18:03:58","slug":"how-to-develop-a-custom-alexa-skill-to-control-your-ros-2-robot","status":"publish","type":"post","link":"https:\/\/learnbydoing.dev\/how-to-develop-a-custom-alexa-skill-to-control-your-ros-2-robot\/","title":{"rendered":"How to Develop a Custom Alexa Skill to Control Your ROS 2 Robot"},"content":{"rendered":"
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  • \n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\n\t\t\t\tROS 2<\/span>, Tutoriales<\/span>\t\t\t\t<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t<\/ul>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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    \ud83d\udc49 How to Develop a Custom Alexa Skill to Control Your ROS 2 Robot<\/span><\/b>\u00a0<\/span><\/h4>

    In this step-by-step lab, you’ll learn how to create a custom Alexa Skill from scratch that can send commands to your ROS 2 robot. We’ll use the Alexa Developer Console to define intents and invocation phrases, and configure the skill to interact with a web server hosted via ngrok. By the end of this guide, you’ll be able to trigger robot actions using voice commands through Alexa’s cloud-based system\u2014even without a physical Alexa device.<\/span>\u00a0<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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    1. Access the Alexa Developer Console<\/span><\/b>\u00a0<\/span><\/h4>

    Start by going to the Alexa Developer Console at developer.amazon.com. Log in with your Amazon account or create a new one.<\/span>\u00a0<\/p>

    Once logged in, click on ‘Create Skill’ to begin building your custom voice assistant skill.<\/span>\u00a0<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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    2. Create and Configure the Skill<\/span><\/b>\u00a0<\/span><\/h4>

    – Skill name: Choose a descriptive name for your skill (e.g., ‘Arduinobot’).<\/span>\u00a0
    – Language: Select the primary language (e.g., English or Italian).<\/span>\u00a0
    – Choose a model: Select ‘Custom’ to build the skill interaction model from scratch.<\/span>\u00a0
    – Hosting method: Choose ‘Provision your own’ so we can use ngrok to expose the skill endpoint.<\/span>\u00a0
    Click ‘Create skill’ and then choose ‘Start from scratch’ as the template.<\/span>\u00a0<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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    • 3. Define the Invocation Name<\/span><\/b>\u00a0<\/span><\/h4>

      The invocation name is the phrase users will say to activate your skill.<\/span>\u00a0<\/p>

      Example: Set the invocation name to ‘activate the robot’.<\/span>\u00a0
      Once defined, click ‘Save Model’ to confirm.<\/span>\u00a0<\/span><\/p><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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      • 4. Create Custom Intents<\/span><\/b>\u00a0<\/span><\/h4>

        Now we will define the skill’s functionality using custom intents. Each intent represents a command.<\/span>\u00a0<\/p>

        **Intent 1 \u2013 PickIntent**<\/span>\u00a0
        – Utterances:<\/span>\u00a0
        \u00a0 \u2022 pick up this pen<\/span>\u00a0
        \u00a0 \u2022 pick up that pen<\/span>\u00a0
        \u00a0 \u2022 grab the pen<\/span>\u00a0<\/p>

        **Intent 2 \u2013 SleepIntent**<\/span>\u00a0
        – Utterances:<\/span>\u00a0
        \u00a0 \u2022 rest<\/span>\u00a0
        \u00a0 \u2022 sleep<\/span>\u00a0
        \u00a0 \u2022 turn off the robot<\/span>\u00a0<\/p>

        **Intent 3 \u2013 WakeIntent**<\/span>\u00a0
        – Utterances:<\/span>\u00a0
        \u00a0 \u2022 wake up the robot<\/span>\u00a0
        \u00a0 \u2022 activate the robot<\/span>\u00a0
        \u00a0 \u2022 wake up arduinobot<\/span>\u00a0<\/p>

        Click ‘Save Model’ after creating each intent. You can add more intents later following the same process.<\/span>\u00a0<\/span><\/p><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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        • 5. Configure the Endpoint<\/span><\/b>\u00a0<\/span><\/h4>

          Go to the ‘Endpoint’ section under the ‘Assets’ tab.<\/span>\u00a0<\/p>

          – Endpoint type: Select ‘HTTPS’<\/span>\u00a0
          – Default region URI: Temporarily enter ‘https:\/\/ngrok.io’ as a placeholder<\/span>\u00a0
          – SSL certificate type: Select ‘My development endpoint is a sub-domain of a domain that has a valid certificate’<\/span>\u00a0<\/p>

          Click ‘Save Endpoints’ to store this configuration. We’ll update it with the actual ngrok address later.<\/span>\u00a0<\/span><\/p><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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          • 6. Build the Skill<\/span><\/b>\u00a0<\/span><\/h4>

            Now it’s time to build the interaction model.<\/span>\u00a0<\/p>

            – Click the ‘Build Skill’ button<\/span>\u00a0
            – Wait until the process completes (status: Build Complete)<\/span>\u00a0<\/p>

            This process generates Alexa’s internal natural language model to match user phrases with the intents you’ve defined.<\/span>\u00a0<\/span><\/p><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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            • 7. Test the Skill<\/span><\/b>\u00a0<\/span><\/h4>

              Go to the ‘Test’ tab in the Developer Console.<\/span>\u00a0<\/p>

              – Enable testing by selecting ‘Skill testing is enabled in: Development’<\/span>\u00a0
              – You can now interact with Alexa using voice or by typing<\/span>\u00a0<\/p>

              Example test: Click the microphone and say ‘activate the robot’.<\/span>\u00a0
              Because we used a placeholder endpoint, Alexa won\u2019t get a response\u2014but you\u2019ll see the JSON message Alexa would send.<\/span>\u00a0<\/p>

              This JSON includes the request type (e.g., ‘LaunchRequest’) and the intent triggered. This is crucial for building the backend server that will process these requests and trigger robot actions.<\/span>\u00a0<\/span><\/p><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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              • 8. What Comes Next<\/span><\/b>\u00a0<\/span><\/h4>

                In the upcoming lessons, we’ll develop the backend web server to receive Alexa’s JSON requests and link them to ROS 2 actions.<\/span>\u00a0<\/p>

                With the skill structure complete, you now have a working foundation for cloud-based voice interaction with your robot!<\/span>\u00a0<\/span><\/p><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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                \ud83d\udc49 How to Develop a Custom Alexa Skill to Control Your ROS 2 Robot\u00a0 In this step-by-step lab, you’ll learn how to create a custom Alexa Skill from scratch that can send commands to your ROS 2 robot. We’ll use the Alexa Developer Console to define intents and invocation phrases, and configure the skill to […]<\/p>\n","protected":false},"author":5,"featured_media":3081,"comment_status":"closed","ping_status":"open","sticky":false,"template":"elementor_header_footer","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[45,43],"tags":[116,256,109,259,258,255,260,179,66,100,71,107,257,76,73],"class_list":["post-3080","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ros-2","category-tutorials","tag-alexa","tag-bot","tag-control","tag-custom","tag-develop","tag-echo","tag-how-to","tag-lbd","tag-learn-by-doing","tag-robot","tag-ros","tag-ros-2","tag-skill","tag-step-by-step","tag-ubuntu"],"acf":[],"yoast_head":"\nHow to Develop a Custom Alexa Skill to Control Your ROS 2 Robot - Learn by Doing!<\/title>\n<meta name=\"description\" content=\"Learn to develop a custom Alexa Skill from scratch to control your ROS 2 robot. 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