Robert Gawron

Hat for Raspberry Pi to monitor environmental conditions (my sandbox for learning modern DevOps tools).

in C and C plus plus, electronic engineering, programming, Python / with No comments /

It’s 2024, and technologies from web development have made their way into the embedded world too-things like containerization, automated deployment, and more. This project is a small hat for the Raspberry Pi that gathers measurements for temperature,...

Hardware Data Logger based on STM32 Nucleo and ESP Module

in C and C plus plus, electronic engineering, programming, Python / with No comments /

It's been a while since I last posted here, but here I am with something new. This project started when I was cleaning up the repo for a semiconductor radioactivity detector. For that project, I made a small shield for the STM32 Nucleo that included...

Ionization Chamber

in C and C plus plus, Python, R, radioactivity / with No comments /

An ionization chamber is a device used to measure radioactivity levels. When air atoms are hit by radioactive particles, an ion pair is produced. Ions have an electric charge, and if they are in an electric field created by positive and negative electrodes,...

Camera nuclear-radiation sensor: part I

in electronic engineering, Python, R, radioactivity / with 3 comments /

In previous posts I've described a radioactivity detector based on a photodiodes. Image sensors in cameras use photoelements too, so I think that they could be also used to detect radioactivity. At this moment i didn't success in this , nevertheless...

Weird arrays in C

in C and C plus plus, crappy code / with No comments /

Recently I've saw quite strange way to create an array in C. I will describe it bellow - looks quite interesting! Let's assume we have an array given bellow: int myArray[4]; We could rework it, so that each element is declared separately: int myArray0; int myArray1; int myArray2; ...

Semiconductor nuclear-radiation sensor: part III

in electronic engineering, Python, R, radioactivity / with No comments /

In this post I will present a new hardware version of my sensor, older versions are described in part I and part II. In comparison to the previous one, sensitivity is roughly x10 more sensitive. In previous version, tin foil window for photodiodes...

Semiconductor nuclear-radiation sensor: part II

in electronic engineering, Python, R, radioactivity / with 3 comments /

There are many ways to measure radioactivity level, semiconductor detectors sense interactions between ionizing radiation and p-n junction. Because in hobbyist area most popular are Geiger-Muller based detectors (in short: not a semiconductor but lamp...