Adafruit mqtt


  • Adafruit IO ? | Adafruit IO Arduino Library | Adafruit MQTT
  • Mobile Development For Arduino Part 6
  • MQTT with lwip and NXP FRDM-K64F Board
  • Adafruit Io Mqtt API
  • ESP8266 Board LED by using Adafruit MQTT Broker
  • MQTT using AdafruitIO and ESP8266
  • Stride MQTT Gateway to Adafruit IO
  • Adafruit IO ? | Adafruit IO Arduino Library | Adafruit MQTT

    Adafruit IO is a system that makes data useful. Adafruit focus on ease of use, and allowing simple data connections with little programming required. IO is built on Ruby on Rails, and Node. You can connect to it over the Internet. What can Adafruit IO do for me? Display your data in real-time, online Make your project internet-connected: Control motors, read sensor data, and more!

    Connect projects to web services like Twitter, RSS feeds, weather services, etc. Connect your project to other internet-enabled devices The best part? Want to display data from a temperature-humidity sensor alongside data from an air quality sensor and add a button to turn on the air-conditioner in your room? No problem! Dashboards are a feature integrated into Adafruit IO which allow you to chart, graph, gauge, log, and display your data.

    You can view your dashboards from anywhere in the world. Triggers Use triggers in AdafruitIO to control and react to your data. Configure triggers to email you when your system goes offline, react to a temperature sensor getting too hot, and publish a message to a new feed.

    Feeds Feeds are the core of the Adafruit IO system. The feed holds metadata about the data you push to Adafruit IO. This includes settings for whether the data is public or private, what license the stored sensor data falls under, and a general description of the data. The feed also contains the sensor data values that get pushed to Adafruit IO from your device. You will need to create one feed for each unique source of data you send to the system.

    For example, if you have a project with one temperature sensor and two humidity sensors, you would need to create three feeds.

    One feed for the temperature sensor, and one feed for each humidity sensor. Integration with IFTTT and Zapier Want to make your project react to an email, display trending tweets, or turn on the front lights when your pizza is on the way?

    Usage The included examples sketches will walk you through all of the features of the library. They can be used on all platforms, but they default to WiFi.

    Most of the sketches have companion projects on the Adafruit Learning system. To change between platforms, you will need to change two lines of code in the config. It is recommended that you start with one of the Adafruit WiFi feathers before moving on to cellular or ethernet. In config. In the config. The rest of the sketch remains the same. You will need to comment out these WiFi lines in config. Unfortunately platforms like the Trinket 3.

    The MQTT library supports the following network platforms and hardware:.

    Mobile Development For Arduino Part 6

    Fill in your first name, last name, email, username, and password to create an account. When coming back to the Adafruit IO website, click the sign-in button. You can enter your username or email along with your password to log into the site. Once you are logged in, you can look at your profile.

    This will show you your current status. The free usage will allow you to create 10 feeds and 5 dashboards. The feeds information parameters rate can be a maximum of 30 per minute. Information will be stored logged for 30 days. The monitoring of a business, department, or specific process can be achieved.

    Select dashboards on the main menu. A welcome dashboard will be displayed as a quick introduction to the site. We will be creating a new dashboard for our information from the Solo process temperature controller. We can now fill in the name and description of our dashboard. Select the Create button. Our new dashboard will now be available on the list.

    Click on our new dashboard. The blank dashboard will be displayed. To the right-hand side, you will see a series of icons. As your cursor passes over them the tool name will be displayed. All of the different block items will be shown that you can add to your dashboard.

    Select the Line Chart. Since we selected the line chart, a maximum of 5 feeds can be selected to display on the chart. We will need to create the feeds that we will display. This will add the feed to the list. Here are our two new feeds. You will notice that the far right of your selection will keep track of the number of feeds selected. The Block Settings will now be displayed. We can enter a title for our line chart if we want. The Block Preview will show you what your chart will look like on the dashboard.

    Along the X-axis will be the time. The Y-axis can be set or left blank to automatically detect the range. We will put in 0 and for the minimum and maximum. Note: will represent Our dashboard now has its first block to display. Select the Gauge. Our gauge min and max values will match our line graph. We now have our line chart and two gauges created on our dashboard.

    Select the Stream block. We can have up to 25 feeds for the stream. This will show us the information coming in from our feeds. All of our blocks have now been created. We will now arrange the blocks on our dashboard the way we would like them to display. We can now use our mouse to arrange our blocks on the dashboard. When finished click the Save button on the icons. Here is our competed Adafruit IO dashboard.

    Watch the video below to see the Adafuit IO dashboard in action. Select view all. The list of our feeds will now be displayed. When requesting feed information from Adafruit IO we will use the following format. This will show you your username and password Active Key.

    Our user name is admin and the password is accautomation. Select Login. Network Interfaces Select the three dots in the upper left corner and select network interfaces. Confirm that we have the preferred and alternate DNS servers specified. The broker address for Adafruit IO is io. The broker port will be left as the default A more secure selection can be made if required.

    Our username and password Active Key can be entered here. Once we have communication with adafruit IO, you will see the green led indicator light. Devices Settings Select the solo device that we have programmed previously.

    Our solo PV and SV will be set to read-only. The topic publish will be set for the feed locations mentioned above. The publish frequency will be set at a fixed interval of 5 seconds. This means that we will have 12 updates per minute for the present and set values. See the above links for details. Viewing our Adafruit IO Dashboard As our gateway collects data from the solo process temperature controller, it will publish this to our Adafruit IO dashboard. Here is our working dashboard.

    We can download the logged files for each of our feeds. Select feeds from the main menu. Select the feed that we want to view. In our case, we will select the Solo PV. A graph of the feed will be displayed.

    Select this button. We will choose CSV comma-separated value. Our file will then be downloaded into the computer with a CSV file extension. This then can be read from any spreadsheet software or database.

    MQTT with lwip and NXP FRDM-K64F Board

    Dashboards are a feature integrated into Adafruit IO which allow you to chart, graph, gauge, log, and display your data.

    Adafruit Io Mqtt API

    You can view your dashboards from anywhere in the world. Triggers Use triggers in AdafruitIO to control and react to your data. Configure triggers to email you when your system goes offline, react to a temperature sensor getting too hot, and publish a message to a new feed.

    Feeds Feeds are the core of the Adafruit IO system.

    ESP8266 Board LED by using Adafruit MQTT Broker

    The feed holds metadata about the data you push to Adafruit IO. This includes settings for whether the data is public or private, what license the stored sensor data falls under, and a general description of the data. The feed also contains the sensor data values that get pushed to Adafruit IO from your device. You will need to create one feed for each unique source of data you send to the system. For example, if you have a project with one temperature sensor and two humidity sensors, you would need to create three feeds.

    One feed for the temperature sensor, and one feed for each humidity sensor.

    MQTT using AdafruitIO and ESP8266

    Integration with IFTTT and Zapier Want to make your project react to an email, display trending tweets, or turn on the front lights when your pizza is on the way? Usage The included examples sketches will walk you through all of the features of the library. They can be used on all platforms, but they default to WiFi. Most of the sketches have companion projects on the Adafruit Learning system. To change between platforms, you will need to change two lines of code in the config.

    A topic can have multiple subscribers and publishers. However, one must be careful when employing multiple publishers to a single feed as it is not possible to determine the publisher source. Next, we need to import the following classes into our sketch file and define some constants.

    Initialize Bridge Next, in our setup method we must call begin on our Bridge instance to initiate network communication. If we are returned anything besides 0, we disconnect and try again 5 seconds later. Next, we need to create a method that publishes our soil moisture data to our feed. Calling ping serves as a health check for our connection. It is important to note if we wanted to retrieve data from a subscription, all we would have to do is call readSubscription on our MQTT client and pass it a duration interval to listen for subscription packets.

    Stride MQTT Gateway to Adafruit IO

    Verify that data is being published Now, we are ready to load our sketch and visualize our soil moisture data on the Adafruit console. Once the sketch is running on our prototype, the data readings will appear on the soil moisture subscription that we created. Source: Bryan Richardson Congratulations.


    Adafruit mqtt