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1000 results for “mqtt”
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A while back, we had a contribution for a VerneMQ Webadmin component. The backend part is fully integrated into newer VerneMQ releases, the frontend project is currently on hold due to low interest. Contributions always welcome! ;)
https://github.com/vernemq/vmq_webadmin
#VerneMQ #MQTT :vernemq: -
No, the #MQTT spec does not *explicitly* state that the protocol has to work the same on a Friday. Or on a weekend.
But we assumed that with the VerneMQ implementation...
Have a great weekend, friends! :)
#VerneMQ :vernemq: #OpenSource -
Apache APISIX is a high-performance API gateway with enough #MQTT protocol awareness to do loadbalancing based on the MQTT ClientID.
You have to terminate TLS on Apisix to allow for protocol awareness.
#MQTT #VerneMQ #ApacheApisix #apisix
https://github.com/apache/apisix -
Apache APISIX is a high-performance API gateway with enough #MQTT protocol awareness to do loadbalancing based on the MQTT ClientID.
You have to terminate TLS on Apisix to allow for protocol awareness.
#MQTT #VerneMQ #ApacheApisix #apisix
https://github.com/apache/apisix -
Apache APISIX is a high-performance API gateway with enough #MQTT protocol awareness to do loadbalancing based on the MQTT ClientID.
You have to terminate TLS on Apisix to allow for protocol awareness.
#MQTT #VerneMQ #ApacheApisix #apisix
https://github.com/apache/apisix -
New paper just published in Future Generation Computer Systems! We present and evaluate a method for activity detection in IoT, using domain-expert annotations of historical data and complex event processing.
https://doi.org/10.1016/j.future.2025.107987
#complexeventprocessing #IoT #BPM #process #CEP #Grafana #MQTT
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Trigger Your Home Automation Routines With Home Buttons - Home automation systems are all well and good, so long as the person who built it ... - https://hackaday.com/2022/11/10/trigger-your-home-automation-routines-with-home-buttons/ #microcontrollers #homeautomation #e-inkdisplay #homehacks #flexures #arduino #esp32 #wi-fi #mqtt
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Trigger Your Home Automation Routines With Home Buttons - Home automation systems are all well and good, so long as the person who built it ... - https://hackaday.com/2022/11/10/trigger-your-home-automation-routines-with-home-buttons/ #microcontrollers #homeautomation #e-inkdisplay #homehacks #flexures #arduino #esp32 #wi-fi #mqtt
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Trigger Your Home Automation Routines With Home Buttons
https://hackaday.com/2022/11/10/trigger-your-home-automation-routines-with-home-buttons/
#Microcontrollers #homeautomation #e-inkdisplay #homehacks #flexures #arduino #ESP32 #wi-fi #mqtt -
Передача данных от ESP32 по Bluetooth LE к Android
Идея приложения состоит в демонстрации IoT - интеграция различных устройств, и передача данных по разным протоколам в Edge или Cloud. Допустим, наш автономный механизм работает без подключения к интернету, а нам необходимо сделать замеры поведения движений во времени. Мы подключаемся с помощью смартфона по Bluetooth LE к контроллеру механизма и в течении определенного времени делаем запись. При этом наш смартфон успешно подключается к облачному MQTT-брокеру и передает данные в IoT платформу. Платформа производит аналитику и предоставляет нам результат. А мы в это время на основании полученных данных можем внести требуемые значения характеристик механизма в контроллер по BLE. В статье Machine learning на ESP32 мы начали разработку проекта распознавания жестов для ESP32. В данной статье продолжим реализацию подключение и отправку данных по BLE и MQTT с помощью Android-устройства. Хотя ESP 32 может напрямую подключаться к Wi-Fi и MQTT, как, например, показано в статье Платформа с web-камерой на ESP32 , мы все же реализуем передачу данных по BLE, руководствуясь выше изложенными соображениями.
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Передача данных от ESP32 по Bluetooth LE к Android
Идея приложения состоит в демонстрации IoT - интеграция различных устройств, и передача данных по разным протоколам в Edge или Cloud. Допустим, наш автономный механизм работает без подключения к интернету, а нам необходимо сделать замеры поведения движений во времени. Мы подключаемся с помощью смартфона по Bluetooth LE к контроллеру механизма и в течении определенного времени делаем запись. При этом наш смартфон успешно подключается к облачному MQTT-брокеру и передает данные в IoT платформу. Платформа производит аналитику и предоставляет нам результат. А мы в это время на основании полученных данных можем внести требуемые значения характеристик механизма в контроллер по BLE. В статье Machine learning на ESP32 мы начали разработку проекта распознавания жестов для ESP32. В данной статье продолжим реализацию подключение и отправку данных по BLE и MQTT с помощью Android-устройства. Хотя ESP 32 может напрямую подключаться к Wi-Fi и MQTT, как, например, показано в статье Платформа с web-камерой на ESP32 , мы все же реализуем передачу данных по BLE, руководствуясь выше изложенными соображениями.
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ВЫБОР СТРУКТУРЫ ДЛЯ СИСТЕМЫ УМНЫЙ ДОМ
В данной статье я хочу сделать попытку обоснования выбора реализуемой мною системы «Умный дом». Это уже третий вариант разработанного мной «Умного дома» (вообще эта тема меня заинтересовала с середины 90-х годов)
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ВЫБОР СТРУКТУРЫ ДЛЯ СИСТЕМЫ УМНЫЙ ДОМ
В данной статье я хочу сделать попытку обоснования выбора реализуемой мною системы «Умный дом». Это уже третий вариант разработанного мной «Умного дома» (вообще эта тема меня заинтересовала с середины 90-х годов)
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Arduino Library Brings rtl_433 to the ESP32 - If you have an RTL-SDR compatible radio there’s an excellent chance you’ve heard o... - https://hackaday.com/2023/01/13/arduino-library-brings-rtl_433-to-the-esp32/ #microcontrollers #wirelesssensors #homeautomation #homehacks #ismband #rtl_433 #mqtt
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Arduino Library Brings rtl_433 to the ESP32 - If you have an RTL-SDR compatible radio there’s an excellent chance you’ve heard o... - https://hackaday.com/2023/01/13/arduino-library-brings-rtl_433-to-the-esp32/ #microcontrollers #wirelesssensors #homeautomation #homehacks #ismband #rtl_433 #mqtt
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Arduino Library Brings rtl_433 to the ESP32 - If you have an RTL-SDR compatible radio there’s an excellent chance you’ve heard o... - https://hackaday.com/2023/01/13/arduino-library-brings-rtl_433-to-the-esp32/ #microcontrollers #wirelesssensors #homeautomation #homehacks #ismband #rtl_433 #mqtt
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Arduino Library Brings rtl_433 to the ESP32
https://hackaday.com/2023/01/13/arduino-library-brings-rtl_433-to-the-esp32/
#Microcontrollers #wirelesssensors #homeautomation #homehacks #ISMband #rtl_433 #mqtt -
TIL: #BTHome is an open standard for sensors to broadcast their measurements using #BLE.
It's definitely worth a look if you are, like me, using ESP32 microcontrollers to measure all kinds of custom stuff and want to feed it to someplace else. For example, #HomeAssistant has built-in support and will auto-detect new BTHome devices.
You might want to consider it as an alternative to #MQTT. It has no delivery guarantees, but OTOH doesn't need LAN or credentials to work.
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a MQTT enabled #bonzibuddy ready to integrate with your home automation. #freetts #java #mqtt
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Ứng dụng MQTT broker chạy trực tiếp trên điện thoại, không cần máy chủ, không cloud, hoạt động ngoại tuyến. Hỗ trợ MQTT 3.1.1 (TCP, WebSocket), TLS, xác thực, chạy nền ổn định. Dùng để thử nghiệm hoặc biến điện thoại cũ thành broker cố định. Miễn phí, không cần trả phí. #MQTT #IoT #Networking #Mạng #IoTVietnam #MQTTBroker
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Today's IT project was to install an MQTT broker on my #SelfHosting #HomeLab. After a bit of shenanigans with DNS and certificates I've got it working. I'm using the Caddy proxy to generate me a certificate, and a shell script to copy the certificate to my docker host for use by the #Mosquitto #MQTT broker. My router and DNS server make sure the messages end up on the docker host, and a test application on my home desktop is able to subscribe and receive messages from the broker.
The real fun starts now... writing an app that receives my location data from #OwnTracks on my phone, stores it in a database, and ultimately does all sorts of pretty geospatial stuff. -
Fallo en el backend de DJI dejó expuestos ~7.000 robots aspiradores en 20+ países: un ingeniero en Barcelona podía suscribirse por MQTT y ver cámaras, micrófonos y mapas del hogar. Ya está corregido. https://aidoo.news/noticia/Wljnzr
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Angefangen hat alles 1980. Seit 1990 selbstständig
Schnittstellen
#RS_232
#RS_422
#RS_485
#Ethernet
#WLAN
#BluetoothProtokolle
#Seriell
#LocalTalk
#EtherTalk
#TEMEX
#TCP_IP
#UDP_IP
#CAN
#Modbus
#MIDI
#MQTTSprachen
#BASICA
#GW_Basic
#Pascal
#Delphi
#Modula_2Formate
#File
#XML
#NMEA
#SMTP
#SyslogAnwendungen
#TurboPascal
#Delphi
#Quark_XPress
#FileMaker
#SketchupSysteme
#PC_DOS
#MS_DOS
#Windows
#Macintosh
#macOSHardware
#IBM_PC
#IBM_AT
#Apple_SE30
#Apple_Macintosh_II_ci
#Apple_iMac -
curl
Daniël Stenberg
facts and praise
I'm fortunate that I am allowed to follow Daniël, lead programmer of the mighty
curl. The reason I formulated the line in this way, is because only through the power of the FediVerse I've gotten a boost from someone I follow, who found a post of the lead programmer or curl interestingstats:
install base => 20000*106 devices
20 billion+ installations!
curlis used in command lines or scripts to transfer data. curl is alsolibcurl, used in:- cars
- television sets
- routers
- printers
- audio equipment
- mobile phones
- tablets
- medical devices
- settop boxes
- computer games
- media players
Curl is THE Internet transfer engine for countless software applications in over twenty billion installations!
curl is used daily by virtually every Internet-using human on the globe!
curl is 30 years old
Let that sink in!
Opinion
curlis mature critical network infrastructure software that we all need to have our internet powered software / hardware to function in respect to data transfer.The syntax to use
curlin simple implementations is IMHO quite easy. In case you need to know an extra option, the executable andlibcurlhave excellent documentation. End users normally interact withcurlusing the (elf) binary on Linux based POSIX operating systems. The more mature BSDs have another binary formatJust type
curlto get an initial output which looks like this on my current systemcurl
curl: try 'curl --help' or 'curl --manual' for more informationthen type
curl --help
Usage: curl [options...] <url>
-d, --data <data> HTTP POST data
-f, --fail Fail fast with no output on HTTP errors
-h, --help <subject> Get help for commands
-o, --output <file> Write to file instead of stdout
-O, --remote-name Write output to file named as remote file
-i, --show-headers Show response headers in output
-s, --silent Silent mode
-T, --upload-file <file> Transfer local FILE to destination
-u, --user <user:password> Server user and password
-A, --user-agent <name> Send User-Agent <name> to server
-v, --verbose Make the operation more talkative
-V, --version Show version number and quit
This is not the full help; this menu is split into categories.
Use "--help category" to get an overview of all categories, which are:
auth, connection, curl, deprecated, dns, file, ftp, global, http, imap, ldap, output, pop3, post, proxy,
scp, sftp, smtp, ssh, telnet, tftp, timeout, tls, upload, verbose.
Use "--help all" to list all options
Use "--help [option]" to view documentation for a given optionWhen you type
curl --manual|lessyou get the manpages which I delimited withlessthrough a vertical pipe_ _ ____ _
___| | | | _ \| |
/ __| | | | |_) | |
| (__| |_| | _ <| |___
\___|\___/|_| \_\_____|
NAME
curl - transfer a URL
SYNOPSIS
curl [options / URLs]
DESCRIPTION
curl is a tool for transferring data from or to a server using URLs. It
supports these protocols: DICT, FILE, FTP, FTPS, GOPHER, GOPHERS, HTTP,
HTTPS, IMAP, IMAPS, LDAP, LDAPS, MQTT, POP3, POP3S, RTMP, RTMPS, RTSP,
SCP, SFTP, SMB, SMBS, SMTP, SMTPS, TELNET, TFTP, WS and WSS.
curl is powered by libcurl for all transfer-related features. See
libcurl(3) for details.
URL
The URL syntax is protocol-dependent. You find a detailed description in
RFC 3986.I can also type
man curlto get a nice output:curl(1) curl Manual curl(1)
NAME
curl - transfer a URL
SYNOPSIS
curl [options / URLs]
DESCRIPTION
curl is a tool for transferring data from or to a server using URLs. It supports these protocols:
DICT, FILE, FTP, FTPS, GOPHER, GOPHERS, HTTP, HTTPS, IMAP, IMAPS, LDAP, LDAPS, MQTT, POP3, POP3S,
RTMP, RTMPS, RTSP, SCP, SFTP, SMB, SMBS, SMTP, SMTPS, TELNET, TFTP, WS and WSS.
curl is powered by libcurl for all transfer-related features. See libcurl(3) for details.
URL
The URL syntax is protocol-dependent. You find a detailed description in RFC 3986.
If you provide a URL without a leading protocol:// scheme, curl guesses what protocol you want. It
then defaults to HTTP but assumes others based on often-used hostname prefixes. For example, for
hostnames starting with "ftp." curl assumes you want FTP.
You can specify any amount of URLs on the command line. They are fetched in a sequential manner in
the specified order unless you use -Z, --parallel. You can specify command line options and URLs
Manual page curl(1) line 1 (press h for help or q to quit)The reasoning behind curl --manual is simple. On a machine without the manual system you still need access to the full manual. This is one of the reasons why
man curlis also implemented ascurl --manualAn important RFC is echoed to my terminal in the
man curloutput which is RFC 3986A Uniform Resource Identifier (URI) is a compact sequence of
characters that identifies an abstract or physical resource. This
specification defines the generic URI syntax and a process for
resolving URI references that might be in relative form, along with
guidelines and security considerations for the use of URIs on the
Internet. The URI syntax defines a grammar that is a superset of all
valid URIs, allowing an implementation to parse the common components
of a URI reference without knowing the scheme-specific requirements
of every possible identifier. This specification does not define a
generative grammar for URIs; that task is performed by the individual
specifications of each URI scheme.I shall not quote the whole RFC 3986 here. You can read all about it on the RFC site (see sources)
As you can see
curlis thorougly documented, has all the features a simple end user needs to fetch all kind of data, scaled up all the way to the extensive complex features router hardware et all, needs to transfer data.programming route
I came to this toot when I saw that certain external feature code, which lives in stable external libraries, is now being removed from curl. I should say the code is depreciated then phased out.
This is a logical step
- It takes resources to maintain external code
- If the (shared) libraries are stable and mature, it's much better to just call those libraries and be done.
- The more external code you can remove from your project the better it is for all the programmers
The same is also happening in the Linux kernel, they are following in the footsteps of curl
Conclusion
There is a treasure trove of information in the sources. Just reading the pages on RFC 3986 will keep you occupied for hours.
Have fun and keep reading / learning and programming!sources:
https://www.rfc-editor.org/rfc/rfc3986
https://curl.se/mail/lib-2026-03/0026.html
#curl #programming #mathematics #linear #algebra #libcurl #Linux #BSD #freeBSD #openBSD #netBSD #POSIX #bash #csh #ksh #sh #fish #radio #TV #smartTV #router
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@homator
Das funktioniert wunderbar und ist leicht zu installieren. Musst halt MQTT am Laufen haben. -
@akkudoktor.bsky.social @m_hundhausen Meine ganze Heizungsanlage hängt komplett cloud-frei auf ähnliche Art an #HomeAssistant - via #RaspberryPi Zero 2W am Raumthermostat-Anschluss.
Hab es hier in dem Thread beschrieben: https://i.cymaphore.net/@cymaphore/113289764436179268
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Die Heizung (#DAIKIN Altherma 3 H HT ECH2O) an #HomeAssistant anbinden hat sich für uns gelohnt.
Mit meiner Zusatzregelung erreicht das ganze jetzt gravierend verbesserte Wirkungsgrade in der Übergangszeit. Bin gespannt ob das über die Heizperiode anhält.
Gateway ist ein #RaspberryPi Zero 2W mit PiCAN Zero mit anderem DC-DC-Wandler und extremer Konfiguration, damit ichs komplett am 24V / 30mA Raumthermostatanschluss betreiben kann.
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Smart Wave = ocean telemetry at scale 🌍
RELIANOID = keeping it secure, fast, and always-on ⚡Just dropped a tech guide on how we load balance Smart Wave:
🔹 MQTT + REST + Web UI
🔹 mTLS + WAF + DoS protection
🔹 Prometheus + Grafana ready
🔹 Handles satellite links like a breezeRead it → https://www.relianoid.com/resources/knowledge-base/howtos/load-balancing-smart-wave-with-relianoid/
#RELIANOID #SmartWave #MaritimeIoT #Telemetry #BlueEconomy #DevOps #mTLS
