⚡ Frank Villaro-Dixon's website

Valoriser ses panneaux solaires avec la communauté d'autoconsommation

Sun, 28 Sep 2025 22:50:31 +0200

Pourquoi j’ai créé l’association SiSol afin de pouvoir créer des communautés d’auto-consommation et vendre son surplus photovoltaique à ses voisins

The insulation asymptote.

Sat, 27 Sep 2025 23:21:01 +0200

Surprisingly, the first centimeters of an insulation are way more powerful than the last ones. Sometimes, it’s not worth it to (over)insulate a wall/roof

Hacking a walking pad into an IOT device

Sun, 17 Aug 2025 00:01:12 +0200

My WFH setup consists of a walking pad. However, it doesn’t track distance over time and resets on every day. Let’s put it on the cloud

Homemade double-pane glass

Fri, 11 Jul 2025 13:31:22 +0200

Making double paned insulating glass at home, using common materials (+ glass!).

Reducing the fan noise of Grohe Blue appliances

Sun, 08 Jun 2025 21:07:08 +0200

The Grohe Blue home carbonators are loud as f. Replacing the fan makes them tolerable

EESSI: Fonctionnement technique de l'assurance maladie entre Suisse et France

Thu, 05 Jun 2025 23:13:39 +0200

Comment fonctionne ’end to end’ le remboursement d’un acte payé avec une Carte Vitale française quand on est assuré en Suisse

Launching CoreOS images on Proxmox, the easy way

Wed, 19 Mar 2025 23:41:44 +0200

How to launch CoreOS VMs on proxmox and configure them with Ignition files

Making Yubikey OTPs work on Dvorak keyboard layouts

Tue, 11 Mar 2025 22:52:13 +0200

The OTP mode of YubiKeys does not work when using an alternative keyboard layout like Dvorak or Bépo

Accident vs Maladie: pas le même cout

Wed, 09 Oct 2024 23:13:39 +0200

Accident ou maladie : comprendre les différences et subtilités de la facturation médicale en Suisse. TARMED, LAA, LAMal, LAM, et cie.

ramlink: UART through AVR's UPDI

Sun, 30 Jun 2024 13:24:08 +0200

Using AVR’s Universal Programming and Debug Intreface (UPDI) as serial communication. A fun library in in rust

A ☀️ pyranometer to measure solar irradiance

Sun, 23 Jun 2024 13:52:39 +0200

Connecting a (good) Kipp&Zonen pyranometer to a Raspberry Pi using a simple ADC board

My (slightly) overkill NTP infrastructure

Sun, 23 Jun 2024 13:24:08 +0200

Context When I was working at the amazing swiss 🇨🇭 hoster Infomaniak, I had the change to setup their NTP infrastructure. Previously, they may have been using an old, single point of failure, forgotten, server that acted as the main time provider. When you have thousands of clients and a time-sensitive infrastructure, and multiple DCs this in not really acceptable. So the goal was to create something better, and we ended up using some PCI-e cards with an OCXO and a GPS + PPS connection.

Backup du forum tiez-breiz

Thu, 11 Apr 2024 23:31:55 +0200

Backup de l’excellent forum tiez-breiz, qui a maheureusement été abandonné

Building a waterwheel for fun and dimes

Fri, 12 Feb 2021 13:24:08 +0200

Context There’s a stream running in my backyard. In french, it’s called a “torrent”: a mountain stream characterized by its irregular flow according to the seasons. The flow is small (~3 l/s). However, being a torrent, its slope is important and respectable water heights can be reached easily. I would like to build a waterwheel on the stream. Once I have the waterwheel, and can add a small generator and provide (some) electricity to my household.

Cost analysis of greywater heat recovery systems

Fri, 12 Feb 2021 13:24:08 +0200

Context While renovating our bathroom with my SO, we stumbled upon the concept of grey water heat recovery devices. Basically, the idea is that grey water (i.e. the waste water from a shower) is sometimes quite warm. These warm calories could be used to heat the incoming water to a shower. There are many different devices. Some are quite complicated (heat pumps) whereas others are quite simple (low-tech). To make it short, they consist of a tube within a tube.

Analysing KESO's Master Key System

Thu, 23 Jul 2020 23:07:08 +0200

Context NB: This is a writeup of something I explored years ago. It’s not really structured, and it may not be 100% accurate, but I find it interesting to share nonetheless. Hope you enjoy it! Some big buildings (hospitals, big companies, universities, etc.) still use traditional physical locks. On big facilities, people may need to open (or close) 3 or 4 doors between the outside and their desk. The problem arises in not giving more rights than needed.

My 21 km peer to peer network link

Sun, 12 Jul 2020 13:24:08 +0200

Context I recently moved into a new house. Sadly, there was still no fiber connectivity in my suburb. That was quite painful as where I lived before I had a good 10Gbits/s internet connectivity. When I subscribed to the ADSL and after setting up everything I realized that indeed it was really painful to work on a 5 Mbit/s internet connection; just pulling a base docker image took time. It’s sad because Free (the ADSL provider) gives you a fixed IPv4 and a /64 IPv6 subnet (well, a /56 would be better, but oh well).

All the pages!

Thu, 12 Jul 1900 13:24:08 +0200

The sitemap of the website: Valoriser ses panneaux solaires avec la communauté d'autoconsommation useful The insulation asymptote. interesting Hacking a walking pad into an IOT device weekend-project Homemade double-pane glass finished Reducing the fan noise of Grohe Blue appliances interesting EESSI: Fonctionnement technique de l'assurance maladie entre Suisse et France interesting Launching CoreOS images on Proxmox, the easy way useful Making Yubikey OTPs work on Dvorak keyboard layouts useful Accident vs Maladie: pas le même cout interesting ramlink: UART through AVR's UPDI POC A ☀️ pyranometer to measure solar irradiance finished My (slightly) overkill NTP infrastructure finished Backup du forum tiez-breiz finished Building a waterwheel for fun and dimes postponed Cost analysis of greywater heat recovery systems idea Analysing KESO's Master Key System interesting My 21 km peer to peer network link finished All the pages!