It's not a bug it's a feature – vincit omnia veritas
“ OpenPCD is a free hardware design for Proximity Coupling Devices (PCD) based on 13,56MHz communication. This device is able to screen informations from Proximity Integrated Circuit Cards (PICC) conforming to vendor-independent standards such as ISO 14443, ISO 15693 as well as proprietary protocols such as Mifare Classic. Contactless cards like these are for example used in the new electronic passports. “
http://www.heise.de/newsticker/meldung/78770
“ Parallax’s Basic Stamp is the mainstay for hobbyists wanting to add intelligence to everyday devices. A new system called Arduino provides the benefits of the Basic Stamp at a greatly reduced cost, increased speed, and is entirely open-source.
Getting to the “Hello World” of microcontroller projects, the blinking LED, on Arduino costs $32 compared to the $119 for a Basic Stamp. This is perhaps a little unfair because the Basic Stamp board contains a full bread-boarding space. A similar setup for Arduino would cost about $60, still a 2x savings (and can made cheaper if you want).“
http://todbot.com/blog/2006/09/25/arduino-the-basic-stamp-killer/
„Arduino is an open-source physical computing platform based on a simple i/o board, and a development environment for writing Arduino software. The Arduino programming language is an implementation of Wiring, itself built on Processing.Arduino can be used to develop interactive objects, taking inputs from a variety of switches or sensors, and controlling a variety of lights, motors, and other outputs. Arduino projects can be stand-alone, or they can be communicate with software running on your computer (e.g. Flash, Processing, MaxMSP.) The boards can be assembled by hand or purchased preassembled; the open-source IDE can be downloaded for free.“
http://www.instructables.com/id/E863XBJZHNES9J54GD/
Platinenlayout herunterladen, ätzen, bestücken, löten und los geht es.
„Unsere Augen reagieren träge. Ein auf die Netzhaut treffender Lichtreiz wirkt noch einige Sekunden nach. Erst nach ca. 0.05 sec ist ein Lichtreis soweit abgeklungen, dass eine neue Lichtwirkung aufgenommen werden kann.“ http://www.hobbythek.de/dyn/14640.phtml
Daher funktioniert auch die Erzeugung von bewegten Text durch die Bewegung von LEDs. Ein übersichtliches Projekt ist der „LED Messaging Weaver“ http://www.mcselec.com/index.php?option=com_content&task=view&id=92&Itemid=57 viel Hardware wird nicht benötigt und die Software gibt es auch noch.
