Help! All my nodes and flows disappeared!

While this is something that you will not see in normal circumstances there is a situation in which it might seem you lost all your flows in Node-RED. I noticed this (intended) behaviour while creating and copying virtual machines running Node-RED. It wasn’t the process of copying itself that caused the flows to dissappear but…

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Real time object/people detection with Node-RED and Yolo

yolo logo

A few weeks ago I came across Yolo (you only look once), an object detection system build on the darknet neural network platform. Until then I wasn’t spending my time with machine learning and neural networks. But Yolo got me triggered. At home I have some IP camera’s watching the house using ZoneMinder. Unfortunately I…

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Autostart Node-RED on Ubuntu server

Node-RED logo

In a previous article I explained how you can install Node-RED on your Ubuntu server. Quite a few people are wondering how you can configure your server to start Node-RED automatically on system boot. That’s what this article is all about: start Node-RED as a service when the server starts. The procedure is simple, as…

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Setting the timezone in Node-RED

Today I was strugling with the node red ‘time range switch’. I noticed it was switching at a different time I intended. After some research I came to the conclusion the timezone setting for Node RED was wrong even with the server timezone set correctly. After figuring out the root cause setting the timezone in…

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Setting up Let’s Encrypt for docker NGINX

In a previous post I showed how to install NGINX in docker to act as a reverse proxy for Apache Guacamole. This is nice but it would be even nicer if the connection was encrypted. Luckily getting an SSL certificate and setting it up for NGINX has be come easy and free a few years…

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Switching Home Assistant lights with Google Assistant

After I switched from iPhone to an Android device I couldn’t you Siri any longer to switch lights on and of. Fortunately Google Assistant came to the rescue. But not without some additional research and trial and error solutions. If you’re lucky you can just follow the instructions on the Home Assistant page and have…

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Apache Guacamole and NGinx as reverse proxy with Docker

For my homeserver, which is running ESXI free edition, I’m using Apacha Guacamole to access the virtual machines. Apache Guacamole makes it possible to control all PC’s on my server without exposing RDP or VNC ports on the internet. Currently I’m using a non-dockerized, outdated, installation of Apache Guacamole. Instead of just updating Guacamole I’m…

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Push notifications on IP camera motion detection

Today I’ll write an artice about getting push notifications on motion detection by a zoneminder camera. After configuring the system you’ll get a notification including a screen capture from the camera right after motion has been detected by zoneminder. Prerequisites: a running and functional zoneminder server with at least one camera a working Home Assistant…

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Installing Node-Red on Ubuntu 18.04 server

Node-RED logo

After running node-red on Ubuntu lts 16.04 for a while it was time for an update with Ubuntu 18.04 being released. Unfortunately I was not able to get Node-Red installed with the tutorials that could be found for Ubuntu 16.04. The installation always gets stuck in a permission-issue-loop 12gyp WARN EACCES user "root" does not…

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