MQTT

Základné informácie o protokole MQTT nájdete

• http://mqtt.org/
• Tutorial MQTT Essentials
• Thingsboard.io integration https://thingsboard.io/docs/user-guide/integrations/mqtt/
• Lekcia na UPJŠ v slovenčine https://ics.upjs.sk/~opiela/iot/post/06-mqtt/
• on-line vizualizácia a test https://shiftr.io/
• Manual to Processing library https://docs.shiftr.io/manuals/processing/

Mosquitto

Pokúsili sme sa nainštalovať mosquitto broker aj na server senzor.robotika.sk priamo na nom to fungovalo dobre, ešte treba nejako zariadiť, aby sa to dalo aj zvonka a nielen cez localhost. Asi sa nevyhneme tomu zabezpeceniu, hoci na pokusy by mi stacilo aj bez mena a bez hesla.

Info:

• http://www.steves-internet-guide.com/install-mosquitto-linux/
• http://www.steves-internet-guide.com/mossquitto-conf-file/
• https://learn.adafruit.com/diy-esp8266-home-security-with-lua-and-mqtt/configuring-mqtt-on-the-raspberry-pi
• https://www.digitalocean.com/community/tutorials/how-to-install-and-secure-the-mosquitto-mqtt-messaging-broker-on-ubuntu-16-04

Nejaky tester k tomu:

• https://www.eclipse.org/paho/clients/js/utility/

MQTT a Thingsboard.io

Pri príprave príkladov sme čerpali informácie z rozličných zdrojov, napríklad:

• https://thingsboard.io/docs/getting-started-guides/helloworld/
• https://thingsboard.io/docs/user-guide/integrations/mqtt/
• https://thingsboard.io/docs/samples/arduino/temperature/
• http://www.steves-internet-guide.com/thingsboard-mqtt-dashboard/ - tuto je navod ako spravit samotny dashboard !!!
• A tu je zatial pokusny vysledok https://demo.thingsboard.io/dashboards/95cf1570-777f-11ea-b382-7d0ef2a682d3

Node-Red a Thingsboard.io

Toto by malo prísť až celkom na záver, keď všetko bude fungovať, tak si ukážeme ako sa to dá pekne zjednodušiť a sprehľadniť cez node-red

Najprv local dashboard

• https://nodered.org/docs/
• http://noderedguide.com/lecture-7-node-red-dashboard-part2/
• http://noderedguide.com/list-of-examples-used-in-the-lectures/
• https://fred.sensetecnic.com/ - fred je online prostredie, treba si pozriet aj priklady

Potom cez mqtt aj na serveri

• https://iotdesignpro.com/projects/interface-arduino-with-node-red-to-send-sensor-data-on-webpage
• https://www.arduinoslovakia.eu/blog/2019/4/node-red--arduino-a-ds18b20
• https://digitallabs.mmu.ac.uk/using-node-red-to-visualise-sensor-data-over-the-internet-without-writing-code-part-2/