22. Oktober 2012

Day 1: Konzept und erste Tests Ziel ist es, eine Flaschenpost zu gestalten, die zum Finder spricht, sobald dieser den Korken der Flasche entfernt. Die Flasche soll Ausschnitte aus der Literatur vorlesen, Musik spielen oder auch das Meeresrauschen wiedergeben. Sobald der Finder genug gehört hat, kann er den Korken wieder schliessen und die Flaschenpost verstummt. Beim erneuten Öffnen ertönt etwas Anderes. Die Literatur und Musik soll von der Seefahrt handeln. Realisierung Flasche: Das Ziel ist, eine richtige Glasflasche zu spalten, die Elektronik hineinpassen und die Flasche wieder zu leimen. Falls sich das Spalten der Flasche als zu schwierig erweist, könnte auf eine schöne PET Flasche ausgewichen werden, deren Oberfläche passend behandelt werden müsste. Flasche spalten auf Youtube Elektronik Ein Lichtsensor muss im Flaschenhals montiert werden. Wenn wenig Licht auf den Sensor trifft (Korken drauf) soll die Musik verstummen. Sobald der Sensor genügend Licht vernimmt, soll der MP3 Player einen Song weiter gehen und diesen abspielen. An den MP3 Player wird ein (kleiner) Lautsprecher (evt. mit Verstärker) montiert. Das Signal des Play/Pause Knopfes kann mittels eines Optokopplers (http://de.wikipedia.org/wiki/Optokoppler) ausgelöst werden. Day 2: Audio research und Aufnahmen Nach intensivem research über die Seefahrer Szene habe ich mich für folgende Literatur Ausschnitte entschieden: ---- "He always thought of the sea as la mar which is what people call her in Spanish when they love her. Sometimes those who love her say bad things of her but they are always said as though she were a woman. Some of the younger fishermen, those who used buoys as floats for their lines and had motorboats; bought when the shark livers had brought much money, spoke of her as el mar which is masculine. They spoke of her as a contestant or a place or even an enemy. But the old man always thought of her as feminine and as something that gave or withheld great favours, and if she did wild or wicked things it was because she could not help them. The moon affects her as it does a woman, he thought." - Ernest Hemingway, the Old Man and the Sea ---- "I tasted, more from curiosity than as a connoisseur, whilst Captain Nemo enchanted me with his extraordinary stories. You like the sea, Captain? Yes; I love it! The sea is everything. It covers seven tenths of the terrestrial globe. Its breath is pure and healthy. It is an immense desert, where man is never lonely, for he feels life stirring on all sides. The sea is only the embodiment of a supernatural and wonderful existence. It is nothing but love and emotion; it is the Living Infinite, as one of your poets has said. In fact, Professor, Nature manifests herself in it by her three kingdoms – mineral, vegetable, and animal. The sea is the vast reservoir of Nature. The globe began with sea, so to speak; and who knows if it will not end with it? In it is supreme tranquillity. The sea does not belong to despots. Upon its surface men can still exercise unjust laws, fight, tear one another to pieces, and be carried away with terrestrial horrors." - Jules Verne, Twenty Thousand Leagues Under the Sea ---- "Some days after this, and I had been on board the ship and got all that I could out of her, I could not forbear getting up to the top of a little mountain, and looking out to sea, in hopes of seeing a ship: then fancy that, at a vast distance, I spied a sail, please myself with the hopes of it, and, after looking steadily, till I was almost blind, lose it quite, and sit down and weep like a child, and thus increase my misery by my folly. But, having gotten over these things in some measure, and having settled my household stuff and habitation, made me a table and a chair, and all as handsome about me as I could, I began to keep my journal: of which I shall here give you the copy, as long as it lasted; for, having no more ink, I was forced to leave it off." - Daniel Defoe, Robinson Crusoe ---- "By noon the ship went very high indeed, and our ship rid Forecastle in, shipp’d several Seas, and we thought once or twice our Anchor had come home; upon which our Master ordere’d out the Sheet Anchor; so that we rode with two Anchors a-Head, and the cables vered out to the better End. By this time it blew a terrible Storm indeed, and now I began to see Terror and Amazement in the Faces even of the Seamen themselves. The master, tho' vigilant to the Business of preserving the Ship, yet as he went in and out of his Cabbin by men, I could hear him softly to himself say several times, Lord be merciful to us, we shall be all lost, we shall be all undone; and the like." - Daniel Defoe, Robinson Crusoe ---- "At midnight I was at the tiller and suddenly noticed a line of clear sky between the south and south-west. I called to the other men that the sky was clearing, and then a moment later I realized that what I had seen was not a rift in the clouds but the white crest of an enormous wave. During my twenty-six years’ experience of the ocean in all its moods I had not encountered a wave so gigantic. It was a mighty upheaval of the ocean, a thing quite apart from the big white-capped seas that had been our tireless enemies for many days. I shouted For god’s sake, hold on! It’s got us! Then came a moment of suspense that seemed drawn out into hours. White surged the foam of the breaking sea around us. We felt our boat lifted and flung forward like a cork in breaking stuff. We were in a seething chaos of tortured water; but somehow the oat lived through it, half-full of water, sagging to the dead weight and shuddering under the blow." - Ernest Shackleton, South: The Last Antarctic Expedition of Shackleton and the Endurance ---- "He looked across the sea and knew how alone he was now. But he could see the prisms in the deep dark water and the line stretching ahead and the strange undulation of the calm. The clouds were building up now for the trade wind and he looked ahead and saw a flight of wild ducks etching themselves against the sky over the water, then blurring, then etching again and he knew no man was ever alone on the sea." - Ernest Hemingway, The Old Man and the Sea ---- Glücklicherweise konnte ein Freund die Text für mich im Tonstudio mit dem richtigen Akzent sprechen. Bei der Bearbeitung des Audios war das herausschneiden der Atmungsgeräusche die grösste Herausforderung. Auf Youtube habe ich folgende passende Shanties gefunden: Song: Spanish Ladies Song: Fifteen men and a bottle of rum Song: South Australia Song: Sailor Song: Santy Anno Song: Yo Ho, Yo Ho! A pirates life for me  Day 3: Die Spaltung der Flasche und der berüchtigte Optokoppler Moritz konnte mir eine Alte iPod-Kopfhörer-Fernbedienung so löten, dass der Mittlere Knopf (welcher mit einmaligem Drücken Play/Pause macht und mit zweimaligem Drücken zum nächsten Lied springt) nun mit dem Verbinden zweier Drähte ausgelöst werden kann. Diese Drähte werden nun mit dem Optokoppler verbunden, der den Stromkreis elektronisch schliessen kann. Nun ab in die Werkstatt mit einigen Leeren Weinflaschen. Nach mehreren zerbrochenen Flaschen hat es schliesslich funktioniert: Einmal mit dem Laser um die Flasche herum Lasern, um sie einzuritzen. Dann die Einritzung mit einer Flamme mehrere Minuten unter regelmässigem Drehen der Flasche erhitzen. Danach sofort ins kalte Wasser mit der Flasche um sie zu spalten. Natürlich wollte sie nicht immer dort brechen wo sie brechen sollte... Day 4: Flaschenspiel Wie soll nun die ganze Elektronik in diese Flasche passen? Arduino board, Batterie, Breadboard, Lichtsensor, Verstärker, Lautsprecher und viele viele Kabel..... nicht ganz einfach :S Wie öffne ich die Flasche wieder, um die Batterie zu wechseln oder den Verstärker auszuschalten? Mittels einer Plexiglas Vorrichtung sollte sich die Flasche nun mit einem "Drehverschluss", der sich verhaken lässt, öffnen und schliessen lassen. Day 5: Endspurt Justierung des Lichtsensors: Wenn man das Ohr an die Flasche hält, wird es ja auch dunkel? Wie lässt sich der Sensor so genau justieren, dass er ein Ohr von einem Korken unterscheiden kann?