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Arduino Relays

Saturday, March 7th, 2009

Yesterday evening I have build a small relays for switching high voltage lines with my Arduino. It uses the “Blink” example and switches on for 10 seconds then switches off for 10 seconds. I have used this document to get my work done.

Arduino Relays off
Relays switched off.

Arduino Relays on
Relays switched on.

Zoomed view

Posted in: DIY, electronics

Arduino TSL230R

Tuesday, March 3rd, 2009

The next device is ready… ;) It is the TSL230R light sensor.

Arduino TSL230R

It prints out the Lux value every N seconds.

Arduino TSL230R

My code is based on this Blog entry. You could buy the sensor at Sparkfun where you will find the Datasheet too. Another place for code is here. There is provided a modified version of the link above.

Posted in: DIY, electronics

Arduino DS1621

Sunday, March 1st, 2009

Arduino DS1621
Jehhaaaa… It is done!

My first Arduino device is born. Thanks to John! He learned me how to develop the driver for it. It is a DS1621 temperature sensor with 2-Wire (I²C) interface bus. And, YES! I have currently 17.5 degrees in my room.

I am impressed! The code will follow ASAP!

Posted in: DIY, electronics

Arduino NXT

Thursday, February 26th, 2009

Arduino2Lego is a project developed at the Politecnico of Milan by a Computer Science Engineering student. It aims to make all Lego NXT peripherals (motors, sensors,…) easily usable from Arduino.

Since i am not lucky with the original LEGO NXT programmable brick because I need the programming environment provided by LEGO. Sure, there are nice implementations of alternative firmwares around the web but none of them are what I want. Sometimes they are using ugly languages like Java and sometimes the code for the firmware is not public available.

Now I have my solution. Move the LEGO NXT brick to your trash and build one by yourself using Arduino based boards.

Posted in: DIY, electronics

l2gvpn 0.1 release available…

Saturday, February 14th, 2009

John, the author of l2gvpn released version 0.1 of l2gvpn some days ago.

Go, take a look! This is a really cool approach of a VPN implementation in just some few lines of code.

Posted in: freedom, linux, OpenSource

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$Date: 2009-02-14 23:52:00 +0100 (Sat, 14 Feb 2009) $