Hello!

My name is Jaroslav. I am a programmer. I love programming, traveling and sports.
Example of the img-to-map utility result

Convert photos to a map

I love hiking, especially in the Carpathian Mountains. In the past, I couldn’t afford any special tracking devices. But I found out that I had a tracker in my pocket all along - my smartphone. When you snap a photo with your smartphone, it saves the place where you took the picture. I thought, why not use this info to map my hikes? At first, I made a simple program to do this....

4 August, 2023 Â· 1 min
“Soldering is easy” comic book

“Soldering is easy” comic book

Are you curious about soldering? Do you want to build cool stuff? Or maybe you want to show others how to solder and make neat things too? I’ve got just the thing for you. Check out “Soldering is Easy,” a comic book that can teach anyone the basic skills of soldering. This short comic book of just seven pages shows you step-by-step, with pictures, how to solder properly. It also gives you all the extra tips and tricks you need to put together an electronics kit, even if you’re brand new to soldering!...

3 May, 2020 Â· 1 min
My Raspberry Pi Zero for 5 bucks

Raspberry Pi Zero - video test

I’ve been contemplating the idea of employing a Raspberry Pi for a pet project of mine. This project requires both audio and video playback capabilities over a sustained period. Naturally, my aim is to keep the hardware costs to a minimum. Hence, the Raspberry Pi Zero, which is effectively a $5 computer (though in actuality, it costs around $20) presents an attractive option. The quality of playback truly exceeded my expectations....

12 January, 2017 Â· 2 min
Raspberry Pi Zero compared to a dollar bill

Raspberry Pi Zero - unboxing and first test

I received a Raspberry Pi Zero as a Christmas gift! It’s a mini computer that’s even smaller than a credit card - it can easily fit into the palm of your hand. Here’s the rundown of its hardware: It’s equipped with a 1GHz ARM11 core. Contains 512MB of LPDDR2 SDRAM. Includes an HDMI port. Comes with 2 Micro-USB ports. Features a 40-pin GPIO (useful for connecting your own sensors and devices)....

7 January, 2017 Â· 2 min