Proxmox Storage Basics

This post should give beginners a rough overview over the storage concepts in a usual Proxmox installation. It will not go in depth on all possibilities and caveats. Storage By default, Proxmox uses LVM for its storage system. LVM is the Logical Volume Manager, which adds an additional logical abstraction layer between the hardware (theContinue reading “Proxmox Storage Basics”

Raspberry Pi 4 – Blinking patterns of green ACT LED

On a Raspberry Pi 4, the green “ACT” LED indicates boot errors using certain blinking patterns. The following table shows what the different patterns mean (source of the table is the official documentation). Hint: In case your LED does not flash, or turns completely of after some flickering, your EEPROM bootloader might be corrupt. InContinue reading “Raspberry Pi 4 – Blinking patterns of green ACT LED”

DIY Temperature Logger with DS18B20 and ESPHome / HomeAssistant

I needed a simple way to measure and log the temperature of the heating pipes in our house. The DS18B20 is a well-known and commonly used temperature sensor, and I already have Home Assistant running. So in this post, I want to guide you through the build of a temperature data logger that can easilyContinue reading “DIY Temperature Logger with DS18B20 and ESPHome / HomeAssistant”

Setting up Home Assistant with two MQTT brokers (using MQTT bridge)

Home Assistant only supports subscribing to one MQTT broker. This is a problem, if you get sensor data from multiple different brokers and want to display them in your dashboards. So in this post, I will show you a solution on how to configure one of the brokers as an MQTT bridge. By doing this,Continue reading “Setting up Home Assistant with two MQTT brokers (using MQTT bridge)”

Migrating a simple server from VMware ESXi to Proxmox PVE

I just migrated a rather small server from VMware ESXi 7.0 to Proxmox 8.1.3 hypervisor. The server had two virtual Windows 10 machines. I document the steps here, in case it might be helpful to someone in the same situation. Step 1: Install a new, empty drive Insert a fresh SSD in the server andContinue reading “Migrating a simple server from VMware ESXi to Proxmox PVE”

Blinking patterns of Philips Hue Dimmer Switch V1 (RWL021)

I currently own two Zigbee-based dimmer switches from Philipps Hue (the old V1 version). I was always wondering what the different blinking patterns of the LED indicated. Understanding them was not too straightforward. So here is a quick summary: Blinking orange The device is currently in pairing mode, waiting to be paired. A hard-reset andContinue reading “Blinking patterns of Philips Hue Dimmer Switch V1 (RWL021)”

How to flash Sonoff TX Ultimate with ESPHome

In today’s blog post, we’re focusing on the Sonoff TX Ultimate Smart Touch Wall Switch – a concealed installation switch with features that go beyond the basics. It is equipped with a large touch area, 28 LEDs for various lighting purposes, a speaker, vibration feedback, and gesture support. While these features offer great flexibility, flashingContinue reading “How to flash Sonoff TX Ultimate with ESPHome”

DIY wireless camera with ESP32-CAM

Having a watchful eye on your surroundings that you can view from your smartphone, for as cheap as 16$. Sounds great? Whether you’re looking to monitor your home, office, or any cherished space, you can do so with the ESP32-CAM module. We all know the ESP32, a very versatile microcontroller that can be used inContinue reading “DIY wireless camera with ESP32-CAM”

Running piper and whisper for Home Assistant on Proxmox (LXC-based)

Piper and Whisper are Home Assistant add-ons needed for creating voice assistant pipelines. Piper is a local text-to-speech engine (TTS), and Whisper is a speech-to-text engine (STT). By using these, we can get rid of cloud services such as Google or OpenAI. If you have installed Home Assistant on Proxmox using the LXC version, notContinue reading “Running piper and whisper for Home Assistant on Proxmox (LXC-based)”

Running Docker containers on Proxmox

Proxmox Virtual Environment is a great way of hosting virtualized resources (virtual machines and LXC containers). But setting up such an LXC container, and then running Docker, is not too easy for a beginner. In this post, I will list the steps to get it running. Basically, these are the main steps to take: SoContinue reading “Running Docker containers on Proxmox”