Hi fellows,

Maybe some of you think this site is dead and I have given up. What is really happening is that due to a day job change , I didn't have the time to update and redesign the site as I wanted to.
This does not mean I am not working on new Arduino projects that I use in my everyday life.
I have decided to post my two most important projects of the last couple years in this old site, in fear that I will never have the chance to do it due to crisis in Greece. This site may go down in September if it will still not be applicable to make any payments outside Greece.

So without further ado, the Arduino projects I am going to present are:

1. A smart thermostat that controls one or more remote controled cheap AC sockets. A project I made to control the portable electrical heater in my room to reduce the electricity bills.
Arduino Thermostat AC Remote













2. A Wake Up light alarm clock. After reading about those really expensive Philips wake up lights I decided to make one of my own completely from scratch with Arduino and Led lights. This wakes me up every day (sunrise mode)  and get me to sleep (sunset mode).
Arduino Wake Up light

So please show a little patience. I have started writing and taking step by step photos of how I made these. It will take some time since this projects are completely operational and I will have to deassemle them.

Thank you for your support! :)

How to find friends without facebook in Spotify PDF Print E-mail
spotify logo

Been looking for this usefull info for a while...

If you know his Spotify username, then type into the main search box:


with USERNAME replaced with his Spotify username. That will then load his profile, from which you can add him to your following list.

For example, you can find me: spotify:user:djmentzik

Found on: http://community.spotify.com/t5/Help-Desktop-Linux-Mac-and/How-to-find-friends-without-facebook-in-Spotify/td-p/361950

Can the Arduino be programed to draw microamps PDF Print E-mail

I recently fell on a question in Arduino Playgroung about how can we make Arduino and specifically MEGA 328Parduinologo1
more energy efficient. I have followed the articles and gathered some links with interesting guidelines.

Samsung Galaxy S2 i9100 inductive charging mod (experiment) PDF Print E-mail
(1 vote, average: 5.00 out of 5)
This experiment presentation is meant for educational purposes only.
I am not responsible for direct, indirect, incidental or consequential damages to your phone or yourself.
If you are understand the risks you may proceed reading this article.

Some months ago, after seeing that many new high level smartphones supported officially wireless charging, I decided to have a look if there was some kind of genuine or aftermarket solution for Galaxy S2. A quick search revealed that Samsung had not predicted to have a wireless charge connector on the phone board although it could have quite easily fit one as it did on S3 and S4. So no retail solution was available. Then I had a look at amazon and ebay. Nothing really good and whatever solutions existed were bulky and very expensive.
After having a look at XDA developers I found out that quite a few had tried to fit an HP Palm Pre inductive charging system to their Galaxy S and S2 successfully. After checking at Amazon I found out that the needed parts were at an affordable price to have a go.

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