光電關關 Photo Interrupter

[yehlu]

http://www.utopiamechanicus.com/article ... d-optical/

[yehlu]

http://hobbybotics.com/projects/hobbybo ... pter-v1-0/

[yehlu]

http://www.arduino.cc/en/Tutorial/Button



That same leg of the button connects through a pull-down resistor (here 10 KOhms) to ground

[yehlu]

http://arduskipper.blogspot.tw/2011/03/ ... rking.html

[yehlu]

https://www.sparkfun.com/products/9322




http://www.sparkfun.com/datasheets/Sens ... ut-v20.pdf

[yehlu]

http://www.youtube.com/watch?v=z4IqJZMbl8o

[yehlu]

TCST2103 光電開關(光遮斷器)

http://www.jin-hua.com.tw/c1_product.asp?id=13535




測試電路
http://www.mikrocontroller.net/topic/130219

[yehlu]

H21B1

http://www.100y.com.tw/viewproduct.asp?MNo=53658