Dyson v15 Battery Notes
A friend handed me a dead Dyson battery, and I took a look just out of curiosity. That’s how most of my “14 days of staying up until 3 AM” adventures usually start.Not this time – this is just me documenting a few findings I...
ISO15693 Block for AARONIA RTSA-Suite
As you might have realized, I use an Spectran V6 for my RF stuff and am absolutely happy with this unique device, not only because of it’s compact form factor or amazing looks. Also the software is absolutely great with a lot of decoders and...
Flipper Zero for Toniebox figurines
When I first read about the Flipper Zero, I was intrigued to back the kickstarter campaign. But all that description text, videos and graphics looked far too good to be true. Two years later I found that the Flipper was not another kickstarter scam, but...
An IoT Geiger Counter
Building an ESP32 based geiger counter, for reporting radiation levels to a time series database, visualizing with grafana
Fuel Pressure Gauge for an Oldtimer
Some day a close relative contacted me and told me about a problem with his Porsche 911F Targa, built in 1971 and laboriously restored over the course of a few years. It is a great car, but when driving longer distances, the engine sometimes suddenly...
An ESP32 based RF antenna matrix
Playing around with SDRs for more than 14 years now, I learnt a lot. Not on a very professional level, but on a hobbyist niveau.I went through developing some firmware for the CY7C68013A, a framework for transferring IQ data from SDRs to processing modules, implemented...
Valve Steam Deck meets Spectran V6 spectrum analyzer
Well, this is not something you usually would to in an everyday scenario. But as I recently received my Steam Deck, I could not resist to check out its capabilities. It is meant for gaming. But… why not run a spectrum analyzer software on it?...
GSM Analyzer – Support for Aaronia RTSA / Spectran V6
Before I go into GSM Analyzer details a few words regarding the hardware. I was using various SDR devices in the last years. Started using specialized hardware named USB-RX a friend designed and also HiQ-SDR, RTL dongles etc. The most mature one was the USB-RX...
An Open Source LIBS software written in C#
I made a custom LIBS software for analyzing spectral measurements. But first of all – what is LIBS? LIBS stands for Laser-Induced Breakdown Spectroscopy, which is in simple words: smashing a beam of photons into some material, leaving a crater and a glowing dust cloud...
[FPV] Analysis of TBS Crossfire, reverse engineering the air link
I started flying FPV quads for a bit of freestyle flying about two years ago. Not very skilled, but also flying every now and then, so no real focused learning. Quickly I jumped onto the TBS Crossfire train and bought a TBS Tango 2 and...