Notepad++ show line numbers
It’s a little hidden imo, so future-me or for your service – the setting to show the line numbers.
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Better scratch your balls than your frozen windshield – MQTT warning for nightly low temperatures with Node-RED querying a weather API
I have a talent to forget to cover my car before a night with temperature below zero and the next morning I have to scratch away all the ice. As I really don’t like that I decided to build a warning mechanism for that. I already had a Node-RED flow querying the weather API to…
Node-RED knows something – combining JSON messages without forgetting previously known values
Generally speaking this is how I learned to cache a JSON object in a Node-RED flow with the Change node by setting a flow based variable. Specifically this handles a problem with HomeAssistants light card backed by a MQTT light (defined in the configuration.yaml) only emitting partial values of the light setting when updating. New…
Mastering the chaos – subscribe to all MQTT topics of your Mosqitto server with console and Node-RED
I wanted to know which topics are active on my MQTT server and if there were some skeletons in the closet I could get rid of. Many Iot devices, Node-RED flows and surely some unused topics or old retained topics lead to more or less MQTT being a chaotic museum of topics. This is just…
Easy peasy – querying weather API in Node-RED and publishing the current temperature to a MQTT broker
Precondition: Have your lokal MQTT broker and Node-RED installed and setup or access to a remote one. I recently added a http request node querying a weather API to Node-RED. After extracting, the current temperature is then published on the local MQTT and can be used by all devices connected to the broker.In this example…
It’s about time – how to auto-run your Python scripts on Raspberry Pi OS with Cron jobs
This is a step by step reminder how to get your Python scripts run automatically on your Raspberry. We will be creating a cron job that is run once when booting. (This should be possible like this or pretty similar on every Linux distribution where Cron is available and is not limited to Python scripts…
WordPress doing it like BER – Stuck in maintenance mode
FTP to your WordPress root directory and delete the “.maintenance” file. This is only the simple solution for the case you closed the browser tab you started the update in and now the banner “…in maintenance mode” appears instead of the website.This won’t repair your wordpress installation when something went wrong with it and that…
