Category Computers

Installing Thingino on a Vanhua FJZ camera

Two months ago my brother asked me: Which security IP camera should I buy? It seemed a simple question, but I needed some time to find a good solution. I used a Yi Camera for several years, but their mobile…

Abusing Apple’s Find My network

Some months ago Apple was running a commercial on Spanish TV about the iPhone’s privacy, mocking users with Android devices. Probably, iPhone users do not know that it is really easy to physically track them. Apple’s “Find My” network was…

Back to OpenWrt

Some years ago, my network provider (O2 – Spain) installed a router for me (Mitrastar HGU GPT-2541GNAC) with much better specs than my old OpenWrt router (TP-Link TL-WDR4300). So, I ditched OpenWrt and started using the company’s router. But the…

CO2 sensor with LCD and ESP32-C3 Supermini

I wanted to add an LCD screen to my CO2 sensor, so I bought a white LCD 1602 with an I2C controller. The I2C controller needs to be soldered to the LCD, but my basic soldering skills were sufficient for…

MH-Z19B CO2 sensor

To keep a healthy environment at home or at the workplace, one of the important things to control is the carbon dioxide (CO2) level. It’s measured in ppm (parts per million), indicating how many parts of CO2 there are in…

WireGuard

I always used OpenVPN in my servers, but now WireGuard is a better option: I’m using it to remotely access private services in my home server. I setup a star topology, where all the VPN clients connect to the…

The LLM revolution

ChatGPT was launched in November 2022, and it changed our world as we knew it. Since then, Large Language Models (LLMs) have integrated into our daily workflows enhancing our productivity and the quality of our work. Another interesting milestone happened…

Opening Home Assistant to Internet

To make Google Assistant work with your Home Assistant, you need to provide a public URL with HTTPS access to HA. Here are the full instructions: But something that seems trivial, like publicly accessing services in your home server,…

Orange Pi 3B

I’ve never been a fan of the Raspberry Pi. In my opinion, it occupies an intermediate position where it is too underpowered for desktop use and too overpowered for IoT projects: So it’s place may be TV boxes (where I…