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Pololu QTR Reflectance Sensors
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Pololu item #:
961
Price: $14.95 |
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QTR-8RC Reflectance Sensor ArrayThis sensor module has 8 IR LED/phototransistor pairs mounted on a 0.375" pitch, making it a great detector for a line-following robot. Pairs of LEDs are arranged in series to halve current consumption, and a MOSFET allows the LEDs to be turned off for additional sensing or power-savings options. Each sensor provides a separate digital I/O-measurable output. |
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Pololu item #:
960
Price: $14.95 |
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QTR-8A Reflectance Sensor ArrayThis sensor module has 8 IR LED/phototransistor pairs mounted on a 0.375" pitch, making it a great detector for a line-following robot. Pairs of LEDs are arranged in series to halve current consumption, and a MOSFET allows the LEDs to be turned off for additional sensing or power-savings options. Each sensor provides a separate analog voltage output. |
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Pololu item #:
959
Price: $2.49 |
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QTR-1RC Reflectance SensorThe QTR-1RC reflectance sensor carries a single infrared LED and phototransistor pair in an inexpensive, tiny 0.5" x 0.3" module that can be mounted almost anywhere and is great for edge detection and line following. The output is designed to be measured by a digital I/O line. |
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Pololu item #:
958
Price: $2.49 |
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QTR-1A Reflectance SensorThe QTR-1A reflectance sensor carries a single infrared LED and phototransistor pair in an inexpensive, tiny 0.5" x 0.3" module that can be mounted almost anywhere and is great for edge detection and line following. The reflectance measurement is output as an analog voltage. |
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Pololu item #: 2455 Price: $4.95 |
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QTR-L-1RC Reflectance Sensor (2-Pack)The QTR-L-1RC reflectance sensor incorporates a right-angle infrared LED and a right-angle phototransistor in an inexpensive, tiny 0.35″ × 0.3″ module that can be mounted almost anywhere and is great for edge detection and line following. The output is designed to be measured by a digital I/O line. This sensor is sold in packs of two units. |
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Pololu item #: 2454 Price: $4.95 |
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QTR-L-1A Reflectance Sensor (2-Pack)The QTR-L-1A reflectance sensor incorporates a right-angle infrared LED and a right-angle phototransistor in an inexpensive, tiny 0.35″ × 0.3″ module that can be mounted almost anywhere and is great for edge detection and line following. The reflectance measurement is output as an analog voltage. This sensor is sold in packs of two units. |
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