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Category: Blog

Announcement: New and interesting things are coming

Hello everyone! I have an exciting news to announce. As you may have noticed my blog has not been very up to date or had content published on regular basis. I am very sorry for that and I promise that going forward there will be regular content published here. Also I would like to give a HUGE THANK YOU to all of you who have visited my website on regular basis looking for new content. Thank you and a virtual high-five to all of you!

TL;DR: I am going to be making new projects and releasing new and interesting content on a regular basis!

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DIY Wake-up Light – Wake-up easily and well rested

Theory behind this project

Another weekend project that I’ve been working on is Wake-up light. Lately I’ve been doing more research on sleep phases and how to “hack” your brain to wake-up more refreshed and adjust your sleep cycle. There are many studies out there explaining this and providing scientific evidence, so if this is something you are interested in, I encourage you to go and get more detailed information on this subject. However I won’t go into too much detail, I’ll just try to give very simple explanation: When you sleep, you are either in REM or deep sleep (NREM) phase. When you wake up in REM phase you feel fresh, relaxed and full of energy. When you are woken up during the deep sleep phase, you feel like you’ve just been hit by a bus, and you take long time to actually wake up.

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Power Supply Active Load Tester – Open Source Open Hardware project

I’m working on a new weekend project that will be released as soon as I finish the Windows application and it will be released as open-source open-hardware project. The uber-cryptic title stands for “Power-supply Active Load tester”.
Recently I was in need for a simple device that will draw reasonably precise amount of current from my power supply unit under test and read the voltage and current draw. There are a lot of schematics and products that do just that, or you can do this just with two digital multimeters, op-amp, mosfet and potentiometer and that will probably work just fine, but I wanted to create my own version and try to improve it. 🙂

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Mini project: Heartbeat Keychain

 

Heartbeat key-chain is intended to be a small gift that your loved one can carry with her/him wherever she/he goes.
Basically top side of the PCB is touch sensitive and has one RGB LED. When the exposed copper on the top side is touched, the microcontroller detects it and begins to pulse the LED in the heartbeat like pattern.

Bill of material, schematics and source code are available on GitHub.

I am posting render images of the PCB since I’m waiting for the Fab house to manufacture the boards for me.

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JGSP NS for Android

JGSP NS is a very tiny Android application that brings time schedule for public transportation of Novi Sad to your fingertips. Application is very simple and plain to use, on start it asks you to pick a public transportation line that you would like to use, after that, another screen appears where you can see the time schedule for work…

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JGSP Novi Sad – Red Voznje v2.1

JGSP Novi Sad - Red VoznjeJGSP Novi Sad – Red Voznje i new and improved version of mini-program that fetches data from official JGSP Novi Sad site and show you only the relevant data about the Bus Line you have selected from the menu. Now program can remember what was the last line you have selected and on next start-up it automatically loads it.
You can keep this program in your Systray and when you need to find out when the next bus is leaving your station you just double-click the icon in you system-tray and the program will pop-up back.
This program is very tiny and has very low resources consumption (updates data every half hour and has no background processes) so you don’t have to worry about eating your resources or your internet bandwidth.

If you want to request a feature or have a suggestion please feel free to email it to me and I will make it in the next release.
Download Link: Download JGSP Novi Sad – Red Voznje v2.1
Update: 03.06.2011. : Minor update to version 2.1.1

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