Whether it is in the context of industrial IoT or in connected homes, gateways are present in most architectural discussions. In this article, we will implement a bridge using the Mosquitto broker such as illustrated in the diagram below.
Typically, you should install this on what you view as your local gateway which is the device that will be the link between your local devices and other local devices or to the AWS Cloud. Mosquitto supports a wide range of platforms including many distributions of Linux. You can go to Mosquitto download page for instructions. For the sake of convenience and reproducibility, in this blog we will install the Mosquitto broker on an Amazon EC2 Linux instance which is the equivalent to having a local gateway running a Linux distribution.
Now that we have installed the Mosquitto broker onto our Amazon EC2 instance or local gatewaywe will need to configure the bridge so that the Mosquitto broker can create a bi-directional connection to AWS IoT Core.
We now have a client certificate for our bridge, this certificate is associated with an IoT policy. The last step is to create the configuration file with our specific configuration for the Mosquitto Broker bridge.
Second, copy the content and paste it in the nano editor. In our configuration we have bridged 3 topics:.
As an exercice, you can use the following commands to test the other configured bridged topics to test sending messages both ways! If you are done testing with an Amazon EC2 Instance you can replicate this setup with the device you are planning to use as a gateway which is hosting the Mosquitto broker! Now that your bridge between your local Mosquitto broker and AWS IoT Core is up and running you might want to fine tune some parameters of the bridge connection.
Please consult the Bridge section of the official Mosquitto documentation if you need additional details. Also, bear in mind the limitations of this approach if you are considering production use.
Furthermore, the Mosquitto broker represents a single point of failure in this architecture. Due to those shortcomings in terms of scalability and high availability, we recommend you reach out to the AWS team in order to evaluate other solutions if your use case requires it. To learn more do not hesitate to read our IoT blog, to browse our library of patterns, or to register for free online training.
How to Install Mosquitto MQTT Broker Typically, you should install this on what you view as your local gateway which is the device that will be the link between your local devices and other local devices or to the AWS Cloud. Click on Roles Click on Create role Fig. Skip the next screen by clicking on Next: Review. Review the role and click on Create role Fig. Choose a region, in this article I am using N.
Virginia us-east Click on Launch Instance. Click on Next: Configure Instance Details. If you wish to use another VPC, make sure the subnet you choose will enable you to remotely connect to your Amazon EC2 instance. Click on Next: Add Storage. Leave everything as is and click on Next: Tag Instance. You may assign a tag to your instance. Click on Next: Configure Security Groups. Create a new security group as described in the screenshot Fig. Review and launch the EC2 instance. Make sure to select an existing Key Pair or to create a new one in order to connect to the Amazon EC2 instance later on.
Next Steps Now that your bridge between your local Mosquitto broker and AWS IoT Core is up and running you might want to fine tune some parameters of the bridge connection.
You may also like.The Echo itself is closed source. But once you figure out the Echo's secrets, it becomes an incredibly powerful tool for voice control, enabling you to control anything in your home or apartment via voice without having to worry about the complexities of the human voice. Difficulty: You'll need to know a little bit of Python programming to understand the examples.
Note: This Instructable is currently Linux-only. Let us know if you'd like it on other platforms - if there's enough interest, we'll look into it! The Echo integrates with the WeMo home automation protocol - simply say "Alexa, discover my devices" and it'll search the local network for WeMo devices.
So let's give it a device to discover! Install the requirements: Python 2. Download a zip of the code from the GitHub repo. Start the server - you should see some debugging text indicating the server has started polling. Say to your Echo "Alexa: discover my devices".Go go squid ep 1 eng sub dramacool
She'll take a few seconds to find the new device. If she doesn't find it the first time, try killing and restarting the process and discovering devices again. Now try it out! Say, "Alexa: turn off device", or "Alexa, device on".
Mosquitto MQTT Bridge-Usage and Configuration
The Echo can also send commands via the Amazon cloud, using their new service called Lambda. This is a convenient way to get started with the Echo, but not great for home automation.
It requires that every command include the name of the program, ie "Alexa, ask HOME to turn on the lights", and it also involves a network round trip to distant servers, which slows down the response time. What we really want is to control local devices locally, without the prefix - ie "Alexa, turn on the lights" - which is why I'm using the WeMo protocol. That's all there is to it. You now have a server connected to your Amazon Echo.
You can now use your voice to:. We've set up our apartment to run an Echo in each room, controlling all of our home automation devices via the maker-friendly MQTT protocol.
MQTT makes controlling home automation devices a breeze using a "publisher-subscriber" or "pub-sub" framework. With pub-sub, you publish messages to topics, and any devices listening on those topics receive those messages.
So, for example, you could have a topic bedroom-lights and publish "1" or "0" to turn the lights on or off. Disclaimer: The example code uses a public MQTT server to get you up and running as fast as possible, so don't go publishing your Social Security Number to a test topic!
If you've fallen in love with your newfound Echo powers, you might be interested in using more than one Echo.Zenbot strategy
You'll run into two issues doing so - and here are the solutions for both:. Knowing where the Echo is. You don't want the bedroom Echo to turn on the kitchen lights, but these things don't exactly have GPS built in.I have significantly refactored and update the old smartthings MQTT bridge. Please find it at This is really beta version 1. My hope is that if you have an MQTT broker already running you can get up and running in less than 15 minutes with working devices etc.
Please leave any issues and comments on github. I really could not find any things like this so for anyone using Tasmota this hopefully will be helpful.
Is there any change you could make a video on the install process. I have 10 sonoffs mini and 3 sonoff basics I am using it with without issues.
Not sure which part of the install process you are referring to - running it as windows as a service? Good to hear that Mini works. Will that cause any problems? Then follow the directions for smartthings IDE to set up the device handlers, the bridge and the smartapp. Once you are comfortable everything is working fine you an set the process to run as a service so it automatically start and everything should be handled automatically.
From the web console I run the following backlog commands. Backlog ntpServer1 0. To get up and running quickly follow this simplest sceario. In IDE by code install the mbs-bridge device handler and mbs-smartapp-lite create a virtual smartthings switch device. You should be all set.
Thanks… That made it all a lot more clear. Why use this path rather than use the new platform? So I thought I might start playing with that environment as it looks like we can write our own code now! You need to have access to some kind of an mqtt broker running somewhere that will broker the messages between tasmota and this server. This is not an MQTT broker. The MQTT broker talks with tamsota and talks with this bridge.Voice Control of Raspberry Pi using Alexa Node-RED \u0026 AWS IoT MQTT
If your working environment has a built in mqtt broker running then just specify that in the config file. I have mosquitto running on my windows because i need it for other projects too. I just wondered whether to look at a new route or take advantage of your great work?
Thanks for the video had not seen it. With smartthings cloud issues i really wanted to run something local. Also the video seems to be about building a device handler for specific devices so each manufacturer will build their own device handler, specify their prop format for events and command topic, and define implementation on how to handle it. I have kind of done that with my device handlers.
HassIO has its own, tasmota has its, so on and so forth.
How to Bridge Mosquitto MQTT Broker to AWS IoT
Hass IO MQTT rule engine is much more sophisticated, this is a very simplistic engine, but in its simplicity I have also found it to be very powerful. I can basically integrate any MQTT device with any smartthings virtual or actual device. I guess we could create an onboarding and other process stuff but commercial device manufacturers are more vested to do that. Bit it isnt clear from the limitted info. Also, I agree… I want a local MQTT broker not one in the cloud, and the inference from the other posting, is that is a future thing.The Amazon Echo and its diminutive Dot cousin have the handy feature of being able to control some home automation devices.
The server could issue commands to his microcontrollers, but he wanted more.
He took the Fauxmo Python WeMo emulator he had been using, and ported it to an ESP library that can be incorporated in existing code to make it appear to the world as a WeMo device. However his requirement for a library to be incorporated in another piece of software were not satisfied by it, hence his work. You can use it to do all sorts of clever things with your Echo or Dot… or you can make it the brains of a Big Mouth Billy Bass novelty ornament.
Eventually, someone will stop wishing for a stand alone, local, voice recognition algorithm, that actually works and will actually get around to creating one. Sadly unless you live off grid, in a cave, half a mile down, strangers will be filming you whilst they text in public. I expect they already know when your lights are on and how often you flush the toilet anyway :D Feel special, they show an interest in you :D.
Dashbot currently on KS from C. I have no idea. Because we like it and find it useful and refuse to be paranoid and fearful over a cloud service? He only asked a presumptive, leading, and overall asinine question… So, speaking of chill…. You can use the cloud based voice to text services to help train a local FOSS voice to text system and then cut the cord if you feel the effort is justified. You send your audio to 2 or more online services and to your local code, then train your local code based on the majority interpretation.
It supports SSDP discovery and is compatible with most 3rd party apps as well as the 1st gen official Hue app the second gen app does things differently. One downside to the Hue ecosystem is that apps and devices tend to support only a single bridge at a time, so it may not be quite as useful as emulating the WeMo ecosystem.
Already in the article. Looks like I need to actually read everything before posting.
Off-The-Shelf Hacker: Virtual to Physical with Alexa Using 3 Internet Services
I am working on a similar project, but with a bit more brains. I have been developing it incrementally since that time.
Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. I am trying to integrate smart home devices with Google home and Alexa but I am facing following issue.
How do I keep track of synchronous request-response? Is there a better way to implement this system? Learn more. Smart home device integration with Google home and Alexa Ask Question.
Asked 1 year, 5 months ago. Active 1 year, 2 months ago. Viewed times. Communication between smart home device and our device cloud server is MQTT. Pradip Shenolkar Pradip Shenolkar 1 1 gold badge 10 10 silver badges 29 29 bronze badges. Active Oldest Votes. Can you point me to some link where I can refer the code? Is this technique reliable for production environment? Regarding your questions, there are two points that help to implement these solutions: Think in terms of devices or endpoints, rather than requests.
This makes thing a whole lot simpler. Caching is essential. Allow your bridge to have a local copy of your device's states. When having the properly implemented cache, you won't need for any response. Just use the cached data. Peter K. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown.
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Name — this is the name that will appear in the Alexa app or on the alexa. Apache is already running on the server so this made sense for me but you can also do this with ha-proxy. Sample Utterances — this is a list of the phrases that you want to use along with which intent they relate to, you can add multiple phrases to each intent eg.
Click Next and you will see a spinner next to interaction model on the left indicating that the model is being built. There is a link to basic flow that can be copied and pasted to do this below but I thought a full explanation would be helpful to understand what is going on. Now add a switch node and change the property to msg.
Add another switch node and add a rule for each of the intents that you created in the ASK developer site, eg. If you want to save a bit of time here is a copy of the above flow that you can just copy and paste into the Node-RED import from clipboard window. Hello, i followed your blog to make connection with my echo and bluemix node red, but got error HTTP status code, please help me to get rid of this issue.
Thanks for this Nathan, it is exactly what I want to do. However, I think they have changed the developer portal since you wrote this as you need to select Alexa from the menu. When I develop a skill on this — is it made public? Have tried adding the flow to my node-red setup which is hosted on AWS. However, I am unable to get Amazon to successfully use the port of node-red.
I could setup a subdomain for node-red, but am unsure of the apache settings. Do you use a proxypass to forward the requests on to port ? Definitely worth noting. Will look later. Go back shows the self cert as empty. Dave, yes, this is an issue on the Amazon side. I had the same, trying to setup on Ubuntu All worked immediately. Worth a try. Guys, this great post and information on connecting ASK to Node-red.
I just found it yesterday! So, I am new to Node-Red and looking for some quick jump start tutorial, any suggestion? Hi Dave! Thanks a lot for the information that you have posted. Regards, Joao Duarte. Thanks for the reply Nick. For example, lights, monitor temperature, check if someone is at my door using a webcam, turn on and off devices heaters, coffee machine etc.
Now imagine that I want for example to control my heater based on a temperature value. I would like to have this kind of commands sets:. Say to Alexa: Alexa start HomeAssistant.5dp5dt bfn
Respond from Alexa: Hi, HomeAssistant started. What can I do for you? Say to Alexa: Alexa what is the temperature of my house?It stands for Message Queuing Telemetry Transport. If a client subscribes to a broker, it is certainly not interested in all published messages. Instead it subscribes to specific topics. It has a unique id amongst all light bulbs, say "device". In openHAB we call that a command topic.
And now assume that we have a mobile phone or openHAB itself and we register with the MQTT broker, and want to retrieve the current brightness value. In openHAB we call that a state topic. This pattern is very common, that you have a command and a state topic. A sensor would only have a state topic, naturally. Because every manufacturer can device on his own on which topic his devices publish, this binding can unfortunately not provide any auto-discovery means.
Those conventions specify the topic topology and allow auto discovery.Ship
Please have a look at the specific openHAB bindings. A decimal value like 0. If you always require an integer, please use the formatter. The value is internally stored as a percentage for a value between min and max. You can connect this channel to a Contact item. You can connect this channel to a Switch item. If on and off are not configured it publishes the strings mentioned before respectively.
This channel will publish the color as comma separated list to the MQTT broker, e. The channel will publish the location as comma separated list to the MQTT broker, e. The altitude is optional.
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