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Showing posts with the label Electronics

Home Assistant install on Proxmox + container setup, LXC

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I have to admit that Proxmox(PX) simplifies your life ! 😎  So why this confession ? Well, I started up in the  Virtual Machines(VM) world with Linux KVM/QEMU and despite the  Virtual Machine Manager GUI the PX GUI helps you a lot. Not to forget that PX have built in administration of Linux containers, LXC. So this post will be a short introduction to why PX, Home Assistant(HA) setup in PX and a quick tour for containers.

Proxmox install, and migrate, to a Mac, Mini 2018

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When migrating a Proxmox(PX) install from a standard Intel server to a Mac Mini(MC) i got some problem. The MC booted from the USB, using the PX ISO file , but it froze direct after I had selected the installation method. So after searching the net it ended up with first installing Debian 13, which worked very well, and after that adding the PX software. Please note !!! that if you have a Mac with the T2 security chip , like the Mac mini 2018, you can’t boot, by default, from en external or removable media without changing security. Another thing is a utostart after power failure which is descibed in this post .

Ubuntu Desktop for beginners or easy start !

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 Updated 2026-07-10 !  This post is for both Windows and Mac users !   I have been running Linux, Raspberry Pi OS , since several years but almost just the Lite version (without Desktop). But when my old MacBook Air "gave up" , with Mac OS, it came naturally to use Ubuntu Desktop since it's also based on the Debian Linux distribution and the most used Linux distribution. So it ended up with installing Ubuntu latest LTS (UOS) ! (Above link is now UOS 26 LTS which I have not tested)

Installing Ubuntu 24.04 or 26.04 on an old MacBook Air(2011)

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 Updated 2026-07-09 ! I have done several posts Blogging about how to keep an old MacBook Air(MBA), mid 2011(A1369), with SSD disk "alive". I have used the fantastic software package OpenCore Legacy patcher to upgrade the Mac to the latest Mac OS.  A while ago i tested Mac OS  Sequoia (15.3), on the mentioned Mac, but I had to admit that it was to much for the 14 year old companion. I really like the Mac and everything works, after a battery change , so it ended up with installing   Ubuntu latest LTS (UOS) ! (Above link is now UOS 26 LTS which I have not tested) Ubuntu on  Mac Mini (2018) and MacBookAir (2010)  ?

Home Assistant with VirtualBox or Proxmox or Linux KVM ???

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 Updated 2026-07-05 !  After testing Home Assistant (HA) for a while, I’ve realised it could improve my home automation, despite that I'm mainly using Apple HomeKit. When I tested HA with Node-RED and some other "Add-ons", on a Raspberry Pi 3 (RPi), I found that its resources wasn’t enough. The following setup could be any computer but I recently bought an Apple Mac Mini M4, replacing my 2018 (M18) model, so the M18 was really a great candidate for my HA setup. I have converted to HA running on Proxmox !   😀

AIS receiver and dispatcher ! The best ?!

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Updated 2026-06-30 I found this amazing application,   AIS-catcher , just scrolling around on Youtube and  it includes "all" you need for an AIS receiver staying ashore or installed on a boat. It is compatible with a wide range of Software Defined Radios (SDRs). These include RTL-SDR dongles (such as the ShipXplorer AIS dongle and RTL SDR Blog v4), AirSpy (Mini/R2/HF+), HackRF, SDRPlay, SoapySDR, and file/network input (ZMQ/RTL-TCP/SpyServer). 

Maritronix, PILOT_H, wireless yacht remote control systems

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I have been looking for e remote control to our 41 foot boat for years but they have been a little to expensive. I have even tried to build one myself but the Volvo Penta engines buzzer was very active 😎 and the instruments indicated errors.  So when I found the Maritronix remote (MXR) I was pleasantly surprised. (From 2 500 € net) We have 2 Volvo Penta(VP) engines D6-310 from 2006 and both a bow and stern truster,  Side power SP125Ti, and an anchorwinch which all are conected to MXR. All the different supported engine controls are  listed here .

Volvo Penta NMEA 2000 Gateway

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Updated 2026-06-15 It's always nice to have ALL information at the same place, navigator/plotter, when You are out with the boat.  What could be missing is the engine information/data. If You have a Volvo Penta from 2006 or later it could be pretty easy. There are some "standard" NMEA 2000 gateways to choose from, for example;  Volvo Penta has it's own 22813366, 3889758 Raymarine ECI-100 Maretron J2K100 ..... Since you found this post, check this out => Remote Yacht control  

Apple Time Machine backup targeting Linux or Proxmox LXC

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My old AirPort Time Capsule will not work with the new version of Mac OS 27 and since I really would like to have a local backup, besides iCloud, the tinkering started. It ended up with a Linux solution and an external USB disk, 2 Tb. In this post will show "how to" create a target for the Time Machine(TM) backup with a standard Linux host or with a Linux container in Proxmox + a Proxmox backup to the same SSD

Signal K quick install, Raspberry Pi, Ubuntu

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Updated 2026-05-03 ! I have got some questions installing, just,  Signal K (SK) so will do a summary with links. Signal K is the hub to receive data, from different devices in different data formats, and send it on to different equipment, or databases, in different formats. Most common for standard marine equipment are the old NMEA 0183 and the newer NMEA 2000 protocol which is also handled.  Besides the SK "hub" function developers  have  created  plugins  for different purposes. This is due to that  SK is open-source ! Sharing is caring ! In this post you can check the devices I'm using connected to the SK server and also my setup.

DYI Weather template with data from Davis Weatherlink using Claude

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I have been very fond of our weather website with the  Weather34 application (W34),  but there is an end to everything..... Doing an upgrade of the server it collapsed and showed a blank screen. I'm no programmer but I had to test if it was possible to update the app using ChatGPT and Gemini. Burt several hours later I gave up !!

DYI Weather template with data from Davis Weatherlink, Gemini, Claude

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I have been very fond of our weather website with the Weather34 application (W34), but there is an end to everything..... Doing an upgrade of the server it collapsed and showed a blank screen. I'm no programmer but I had to test if it was possible to update the app using ChatGPT and Gemini. Burt several hours later I gave up !!

IVT, Bosch heat pump easy integration, Node-RED

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Updated 2026-03-30 ! If you are running the IVT Anywhere or the  Bosch Easy remote  app you probably also can  retrieve its data with for example Node-RED. With the nice application  Bosch XMPP you can set up an integration with the cloud service supplied by your vendor. Please note !  that this app, 2026-03, doesn't work with Node.js V24 but there is a "work around". Check below.

Node-Red quick install

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Updated 2026-03- 15 ! Node-Red (NR) is  Flow-based programming for the Internet of Things This post isn't made as a complete install guide, there are several, just some links to the best information I have found. The best thing is that even if you don't are a skilled programmer, but like logic flows, you can make really advanced things. It's pre-installed on some Raspberry Pi(RPi) distributions. Running  Node-Red with  multiple instances  ?

Home Assistant DIY, ESPhome, creating a Bluetooth proxy

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My Home Assistant (HA) server setup is  virtualized   with Linux KVM  and I needed a solution handling Bluetooth since the used Mac Mini just had a PCI connected one. HA recommends to use a  Bluetooth proxy (BTP) quote  " since Linux kernel updates have previously broken Bluetooth functionality and Bluetooth driver support Linux generally falls behind other operating systems for newer adapters. A Bluetooth proxy is particularly interesting to users who virtualize their instance, where the USB pass-through may cause additional problems ". So using  ESPHome  I will set up a BTP in this post !

Home Assistant for beginners or easy start

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Updated 2026-01-01 ! What is the purpose of a Home Assistant(HA)  according to Wikipedia ? Home Assistant is free and open-source software used for home automation. It serves as an integration platform and smart home hub, allowing users to control smart home devices. The software emphasizes local control and privacy and is designed to be independent of any specific Internet of Things (IoT) ecosystem.  Even for me, as someone running Apple HomeKit and Homebridge, it is a fantastic piece of software that bridges almost everything and enables highly intelligent integrations.  Since it is widely used, there is a wealth of information available. However, I couldn't find a clear "bullet list" on how to get started. This post will primarily contain links to other sources rather than writing extensive explanations myself.

Lightweight DIY Linux Server Monitoring Dashboard Using MQTT + Node-RED

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Updated 2026-01-19 ! Having some Linux servers up and running I checked out  monitoring tools like Nagios, Zabbix, Cockpit or Prometheus. For small setups, home labs, or lightweight environments, those solutions can feel like using a sledgehammer to crack a nut. In this post, I’ll show you how to build a   lightweight monitoring agent   using nothing more than a Bash script, MQTT, and Node-RED. The script collects key metrics from your server — disk usage, memory consumption, CPU load, and available package upgrades — then publishes them to an MQTT broker. From there, Node-RED visualizes the data in a clean, real-time dashboard. The result? A simple but powerful monitoring system that works across multiple servers, scales with your needs, and gives you instant visibility into the health of your infrastructure. And the best part: you control every piece of it.

Heating, underfloor, with PID controller, Home Assistant and Waveshare ESP32 relay board

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In previous posts , I’ve been testing and figuring out how to manage my old control system for our underfloor heating. Now, it was time for something more bold, and since I’m increasingly impressed with Home Assistant(HA) and its software capabilities, that’s exactly what I did. Industrial-style ESP32 boards are becoming increasingly popular for Home Assistant and automation projects, especially when they include Ethernet, isolated inputs and relay outputs on a single PCB. The Waveshare ESP32-S3-ETH-8DI-8RO (W8) is one such board: it’s compact, well-equipped and clearly designed for serious control applications, rather than just hobbyist breadboards. In this post, I’ll share my experience setting up this board using ESPHome , pointing out the main configuration points, common mistakes and practical lessons I’ve learned along the way.

Underfloor heating with PID controller, Node-RED

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Updated 2026-01-03 ! In a former post I did some hacking/checking how our underfloor heating control system handled the valves, via actuators, regulating the heat.  Now it was time to do some tests with Node-RED(NR), with a PID controller ,  and a Shelly 1 (S1) connected via WiFi and driving the actuator. I really nice solution with Home Assistant and a relay board is found here ! 

How to use Home Assistant for heating and cooling

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I have made several posts regarding temperature ,  in some way, and now I'm back with a post using Home Assistant(HA) and controlling temperature. The primary purpose of this post is to address an upcoming issue with our floor heating system. However, it may also provide some assistance for other temperature control problems using HA "Generic Thermostat" As said before I'm more comfortable with Node-RED then YAML, in HA, so .....😎 My latest and most sophisticated heating control solution is found here !!

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