Node-RED Tutorial | Basics of Nodes and Flows for Beginners

Creating automations in Node-RED can be confusing at first. I explain how understanding messages is the key to creating flows. I use some Home Assistant examples to get you started.
Node-RED Playlist: • Node-RED
Node-RED Documentation: nodered.org/docs/
00:00 Intro
01:36 How messages work in Node-RED
02:09 Triggers for flows
02:58 The basics explained - Inject and Debug Nodes
04:51 Adding data to the message object
06:33 Multiple nodes - adding both to a message
07:34 Manipulating the message with the Change Node
08:50 Adding Conditions
10:22 Useful Example - 1 button press for multiple actions
10:54 Summary / Recap - AND and OR Examples
15:35 Other nodes - Switch, Counter, Sunset, Files
16:06 Outro
#nodered #homeassistant

[@drreality1]

Great introduction and ideas
Thank you

[@gambler3k]

Very good video

[@thomasschreier1080]

Great video, thank you!! I'm new to Node Red and try to play local MP3 on my Sonos Speakers. But there is no Instruction how to access local files and play them on Sonos. I managed to play "Online mp3s" over , but I have no idea what is different with the local HA files?

[@lets-automate]

Hmm, I'm not sure tbh. Are you using this palette? If not, then probably worth a try: flows.nodered.org/node/node-red-contrib-sonos-plus
Accessing local files within Node-RED is possible I'm just not sure how Sonos accesses those files.
Are you using Node-RED standalone or with Home Assistant? It's likely running in a docker container and so only has access to specific folders.

[@thomasschreier1080]

@@lets-automate Thank you very much for your replay! The Sonos-plus palette is installed but I have exactly this question how can I access the local file system and play it from Sonos. I tried with web sound files over .... and this works but no idea how to play a local .mp3 file.

[@SERANJEEVI_C]

Hello sir, I have doubt....I have esp 32 and relay module,one touch module and on off switch . I have to combine with this to make esphome... switch will control on and off through home assistant it will perfectly work.....but when home assistant device will off and esphome will be work manual switch on ,off to turn on relay without contacting home assistant it works fine....but I have a issue with that " when the switch state is on in esp 32 when the power cut off happens and then power on device...in this case already switch will be on state....but relay output cannot auto on on after restart esp 32 device "
Sir, you have give some solution for that or make a video to solve my issue......

[@lets-automate]

Hello there!
It's a bit complex to understand over this, but I think I get the idea.
It would probably be best to put your current yaml config on the Home Assistant ESPHome forum and I'm sure people will help you fix your issue! Here's a link: community.home-assistant.io/c/esphome/36
I have one ESPHome video and plan to do more, but it won't be for a little while.
Thanks for watching!