LED Hard Drive Clock Demo
This is a hard drive clock I built from a 3.5" hard drive, some tri-color LEDs and a PIC16F252 microcontroller. It works by shining the LEDs underneath a platter with a slot cut into it, and by timing the various colors it can produce an analog clock display as well as other patterns. I got the idea from this page: http://alan-parekh.com/projects/hard-drive-clock/ And here is my page with
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Link: LEDを光センサーã¨ã—ã¦ä½¿ç”¨ã—ãŸè‡ªå‹•ç‚¹ç¯å›žè·¯. LEDã«å…‰ã‚’照射ã™ã‚‹ã¨ã€å¤§ããªèµ·é›»åŠ›ãŒç™ºç”Ÿã™ã‚‹ï¼ˆå…‰èµ·é›»åŠ›åŠ¹æžœï¼‰ã€‚図1ã«ç¤ºã—ãŸã®ã¯ã€ãã®å…‰èµ·é›»åŠ›åŠ¹æžœã‚’活用ã—ãŸå›žè·¯ã®ä¾‹ã§ã‚る。LEDã®ç™ºæ˜Žã‹ã‚‰30年以上ãŒçµŒã¡ã€ãã®ç™ºå…‰åŠ¹çŽ‡ã¯ç€å®Ÿã«å‘上ã—ã¦ããŸã€‚（ä¸ç•¥ï¼‰ LEDã¯ã€ã‚ªãƒ•ã‚£ã‚¹ã‚„実験室ã®ã‚ˆã†ãªé©åº¦ãªæ˜Žã‚‹ã•ã®ä¸‹ã§ã¯å…‰èµ·é›»æµã«ã‚ˆã£ã¦ç™ºå…‰ã—ã€å‘¨å›²ãŒæš—ã„ã¨ãã«ã¯ç™ºå…‰ã—ãªã„。ã“ã®å›žè·¯ã¯ã€å…‰ã‚»ãƒ³ã‚µãƒ¼ã§ã¯ãªãã€LEDã«ã‚ˆã£ã¦å‘¨å›²ã®æ˜Žã‚‹ã•ã‚’検出ã—ã€LED自身ã®ã‚ªãƒ³/オフを自動制御ã™ã‚‹ã€‚ LEDを光センサã¨ã—ã¦ã‚‚利用ã§ãã‚‹ã¨ã„ã†ã®ã¯Jeff Hanã®ã€ŒMulti-Touch Sensing through LED Matrix Displaysã€ã§åˆã‚ã¦çŸ¥ã£ãŸã®ã§ã™ãŒã€ãã®å¾Œæ³¨æ„ã—ã¦ã¿ã¦ã„ã‚‹ã¨ã€ã‚ã¡ã“ã¡ã§ã“ã‚Œã«é–¢é€£ã—ãŸè©±é¡ŒãŒã‚ã‚Šã¾ã—ãŸã€‚ã“ã®è¨˜äº‹ã§ç´¹ä»‹ã•ã‚Œã¦ã„る方法もã€å…‰ã‚»ãƒ³ã‚µã‚’使ã‚ãšã«LEDをセンサ＆発光
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