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價格均為含稅價,滿1000元享免運優惠!歡迎公司及學校機關團體大量採購, 由專人提供專案報價。
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產品貨號:368030600180
區號:Mb34-21
品牌:
原廠貨號:ROB-09454
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商品簡介 |
QRE1113 Line Sensor Breakout - Digital
Description
This version of the QRE1113 breakout board features a digital output, using a capacitor discharge circuit to measure the amount of reflection. This tiny board is perfect for line sensing when only digital I/O is available, and can be used in both 3.3V and 5V systems.
The board's QRE1113 IR reflectance sensor is comprised of two parts - an IR emitting LED and an IR sensitive phototransistor. When you apply power to the VCC and GND pins the IR LED inside the sensor will illuminate. A 100Ω resistor is on-board and placed in series with the LED to limit current. The output of the phototransistor is tied to a 10nF capacitor. The faster that capacitor discharges, the more reflective the surface is.
These sensors are widely used in line following robots. White surfaces reflect more light than black, so, when directed towards a white surface, the capacitor will discharge faster than it would when pointed towards a black surface.
The power input and output pins are brought out to a 3-pin, 0.1" pitch header. The board also has a single mounting hole if you want to screw it onto something.
We also have an analog version of this board.
商品規格 |
Dimensions:0.3x0.55"
下載資料 |
Documents
出貨清單 |