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A download ...

... is usually not needed to use the facility, but your browser should provide this Java-Version, for example InternetExplorer 5.01 (or higher) or other equivalent software. Used Java-Version is 1.3.0_02. Full Live-Stream performance could be possible with DSL-Connection or LAN. In that case you can reach 15 frames per second. With another connection and/or if more than 1 client is viewing, the frames per second will slow down.

• a maximum of 5 clients viewing the application, are permitted
• the first client of these 5 can operate the panel
• every request will be informed by a advice in the webpage
• the controlling client can take 2 minutes maximum to make his moves
  (you will see a progressbar at the bottom)
• 1 minute without a move the connection will be closed automatically
• after pressing a controll-button the SMA-spring will be heated for ca. 10 seconds, in that time all buttons will be enabled
• during the Live-Stream a window appears showing a moving stick, with a red cylinder on his head-end, from above
• if you need more light to view this little experiment, use the light-button in your controll-panel

Used hardware:

• Host(Server) is a 1,2 MHz AMD Processor with 256 MB RAM
• the webcam is a Philips ToUcam Pro with USB-interface
• sended signals by the 8 data-lines of the Parallel-Port, via Koaxial-Cable, serving to approach 5 semiconductor-relais
• 4 of the relais are for controlling, one is to switch the light (if necessary)
• the Control-Relais are switching power from a laboratory-transformator to heat the NiTi-spring (100mm length, 0,5mm thickness of wire, 5mm diameter of spring)
• for light we used directly line currrent and a small spotlite
• parallelport "LPT1" in EPP-Mode

Used software:

• JavaApplet (small internet-capable programm) to control and visualize the panel at the webpage
• commercial Live-Stream software streaming the webcam picture
• ApacheServer program connecting client and Host (in this case it is also the Server)
• a small Java application from the book "MSR mit Java" to connect the control-level of the operation system with our Applet
• freeware Parallel-Port driver helping to avoid the security restrictions from the OS
• JavaServer executing orders by the operaterclient