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I got this nice Tiny2313 header board on Friday from Alex. Thanks for that nice piece of work!

It seems that I bought the last ones because there are currently no more of them in his shop available… :( But I think you could get one in the near future again. If not take a look at his site. All code and schematics are freely available there.

Soldering was a lot of fun and very easy to do. After successful soldering I build the small circuit at the end of the howto and flashed the microcontroller using the Makefile provided by Alex. I needed to change some things to make it work right on my Linux box using avrdude and the Atmel AVRISP mkII.

I changed the PROGRAMMER line to:

PROGRAMMER = -P usb -c avrispmkII

If you even get errors, try to add the parameters “-F” and “-D” to $PROGRAMMER. Call “avrdude –help” to get a description of these parameters… ;)

Don’t forget to add an external power supply to the header board since the AVRISP not seems to provide enough power. I got strange errors in the output of avrdude. After adding more power everything worked as expected.

The result: A blinking LED. Yeah! :)

The Arduino and the Netduino are communicating over two digital IO lines. The animation is being synced over these lines. Rafel an I wanted to make the displays run. With success… but what next? Syncing both devices!

Since Rafael is developing on the Netduino platform and I am using the Arduino as platform, we had much fun putting these two devices together and let them talk to each other. This communication is used to keep the animation on both LCD displays in sync. There is a video below but it has a really bad quality. Focus your eyes on the LCD devices when watching it.

More information will follow in the next hours… ;)

I build a new Arduino device this weekend. I was ill and had much time chilling at home and hacked this:

It is a TA01-11 LED matrix from Kingbright. It was a little bit tricky to figure out how it works because it was the first matrix I played with but at the end everything worked fine… ;) Thanks to Rafael for this great hacking session!

You could find more information and the code on my Arduino TA07-11 5×7 Dot Matrix Display page. Have fun!

I got my new toy some minutes ago. A Netduino!

Netduino is an open source electronics platform using the .NET Micro Framework. The idea is taken from the Arduino platform but the difference is, that the Netduino is being programmed in .NET and it has a much more powerful 32-bit microcontroller onboard. It is an AT91SAM7X512 with the following specs:

• Atmel 32-bit microcontroller
• Speed: 48MHz, ARM7
• Code Storage: 128 KB
• RAM: 60 KB

Hopefully I could develop with the Mono project for it but at first I will do my work in a Microsoft based environment. Sounds contradictory? Yes, it is… but I want to give it a try… ;)

I am a little bit it ill at the moment but it will be a funny weekend when playing with this nice piece of hardware.

I have released the source code of my project “PC/SC for PHP” today.

It is an extension for PHP using pcsc-lite for smart card communication based on the PC/SC standard.

It is just an attempt to realize the idea of native and server side smart card communication within a PHP project. It could for example be useful if your web application needs access to crypto for signing, encryption etc. using a smart card as a SAM (Secure Application Module) or as a HSM (Hardware Security Module).

Have fun and please send me some comments…!