About me

An experienced software developer, currently working as an Android developer. Tinkerer, and maker in free time. More about me.

Recent posts from notebook

Revisiting an old hobby - building a plastic model kit: Space Shuttle Atlantis

Somehow, I have got an idea to revisit one of the former hobbies of mine.

When I was a kid I was quite interested in planes. Apart from reading books and visiting air shows I also ended up building few scale model kits. I have never really got good at it. If I remember correctly, I managed to paint only one of them. Somehow I didn’t have enough patience to learn more and pass through the true beginner phase.

It might be interesting to try again now, a few decades later, maybe I am patient enough? I bought a cheap Revell model kit of Space shuttle Atlantis, glue, paints and other accessories and this is my experience.

Sofle Keyboard evolution: slow and not really steady

It’s been half a year since I published my articles telling a story why and how I modified an existing design for a split DIY keyboard (Lilly58) and created one tailored to my preferences - SofleKeyboard. I already started to experiment with more modifications.

Self-balancing stories, EP 1: How to not start a project made from parts I already have

It was early pandemic when my employer switched to the work-from-home mode and I realized I have a bit more free time since my commute times dropped to zero. Apart from keyboard stuff, I had no nice project in progress that wouldn’t involve waiting for PCB manufacturing or parts. So, what could I build from things I have at home? What about those 2 cheap geared DC motors, those 2 wheels, some micro, IMU unit. Hmm. I see a 2-wheeled self-balancing robot here. I always wanted to build one and learn how they work.

SofleKeyboard build log/guide

Update: for an up-to-date and improved build guide go to the SofleKeyboard’s website.

This article is partly a build log and partly a build guide for SofleKeyboard (introduced in the previous article) ~~since there’s no build guide for the keyboard yet and there are already people who would like to build it. ~~

Let me introduce you SofleKeyboard - a split keyboard based on Lily58 and Crkbd

In the first article, I explained my experience with custom keyboards and my requirements regarding a layout for my next DIY keyboard. I have also promised there will be another article featuring a custom keyboard with such a layout.

Behold, this is SofleKeyboard - a 6×4+5 keys column-staggered split keyboard with encoder support. Based on Lily58, Corne, and Helix keyboards.

ESP8266 based room-conditions monitor, part 2: PCB

In the previous post in this series, I wrote about several prototyping steps for this project. In this article, I am going to describe the final version.

PCB Snowman Christmas decoration

I have enjoyed designing and making a Squid PCB badge some time ago and I have some plans for more complex PCB badges and creations. But Christmas is coming and I realized it might be fun to create some simple gift for friends and family. It was also a good opportunity to try another PCB manufacturer.

ESP8266 based room-conditions monitor, Part 1

When I built my Freeform ESP8266 OLED MQTT client and wrote about it I mentioned I have a long-running project which captures the data I wanted to display on the device. I call it Room Monitor and it is nothing special - a bunch of sensors connected to ESP8266 and powered with a battery. I am going to briefly sum‑up its hardware and software development in the following two articles. This one is going to cover prototyping and the next one the current (and semi-finished) PCB version.

In search of the best custom keyboard layout

I built my first custom keyboard (Katana60) back at the beginning of this year and the second one (Corne) a few months ago, but I am already designing another one. Apart from the fun I have as I build and customize those keyboards, it is about looking for a more effective keyboard layout for my daily work. This article sums up my journey which leads to the decision to design own keyboard.

Squid badge - my first PCB design

I designed my first PCB. It’s not useful at all and very primitive electrically. But I have learned a lot.