Espressif is this little fabless Chinese company who are behind the incredibly successful ESP8266 chip, followed in 2016 by a more powerful successor: the ESP32. This microcontroller allegedly uses a lot more power than equivalent Arm MCUs (though I haven't done any research on that topic), but what really makes …

I was a bit late to the party, but I finally got into home automation and bought a couple of connected power plugs. Price and curiosity decided for me: they can often be found online for really cheap and they are a great excuse to spend a week-end doing nothing …

Just released this small piece of code a few days back:

https://github.com/nicolas31/wunder

I wanted to be able to bring up the weather forecast for the place I am currently visiting without having to yield my address book to a shady app, or suffer from tons of …

A year ago, I thought I had upgraded my home WiFi to AC with the purchase of a cheap TP-Link Archer C5, but it only gave me trouble. The 2.4GHz band is working perfectly, the 5GHz not so. The first version of OpenWRT I installed had no support at …

Glad to announce that 2cca, the two-cent Certification Authority has now been ported to pure C with libcrypto (openssl) as single dependency. The goal was to make it available on openwrt as it seems pyopenssl is not available on this platform -- without a lot of efforts.

As always, I swear …

If you have ever set up an OpenVPN server, you probably had to fight your way through the certificate generation steps. Something like what is detailed here:

https://openvpn.net/index.php/open-source/documentation/miscellaneous/77-rsa-key-management.html

The official OpenVPN guide refers to easy-rsa, which is a royal pain in …

Situation: you live in a one-room appartment and receive Internet through a single RJ45 plug in the wall. How do you extend it to all devices in the room for the cheapest price?

Objective: provide WiFi connectivity on a dedicated LAN where users can see each other and share files …

Say you rent a box somewhere on the Internet. You installed Debian stable on it because you want it to be nice and stable and run a few daemons that are useful to have online. Could be to hold your vast music collection, family pictures, or use it as remote …

We now have official confirmation that the C++ standardization body is made of extra-terrestrial beings come to Earth to prevent humanity from reaching the singularity stage. By creating C++ and making it appear as …

To the question: "Why do we do things this way?", you often get three different kinds of answer:

Argument by Longevity

"Because we have always done things this way", also known as "It is known."

Argument by Numbers

"Because everybody does it this way, there must be a reason."

Argument …