Infrared

Infrared (IR) Distance and Movement Sensors

Infrared sensors are commonly used to measure distance and proximity of objects. As there is no contact and no visible light these sensors are an unobtrusive way to detect obstacles.

Range finding sensors use a beam of infrared light to determine the distance from the sensor to the object. Ideally suited to indoor use these sensors often include compensation for infrared interference from other sources like the sun and indoor lights although direct sun outdoors can be a challenge.

Proximity infrared sensors also emit a beam of infrared light but use the level of reflected light to determine if an object is within a range or not. They indicate yes or no, rather than how far.

Other infrared sensors can detect infrared light as a measure of temperature, PIR sensors include extra logic to detect motion and infrared signal receivers know what your television remote is up to.

 

Pololu Zumo Reflectance Sensor Array

Code: SEN-10049

This reflectance sensor module is designed for use with the Zumo shield for Arduino. It has six IR LED/phototransistor pairs that can be used for line following or edge detection; each sensor provides an independent, digital I/O-measurable output.

$ 13.95

Out of Local Stock

We can ship 128 more in 7 days

QTR-3A Reflectance Sensor Array

Code: SKU-003241

This compact module packs three IR LED/phototransistor pairs onto a 1.25″ × 0.3″ board. The sensors are mounted on a 0.375″ pitch, making this array a great minimal sensing solution for a line-following robot. Each sensor provides a separate analogue voltage output .

$ 6.95

Out of Local Stock

We can ship 467 more in 7 days

QTR-3RC Reflectance Sensor Array

Code: SKU-003242

This compact module packs three IR LED/phototransistor pairs onto a 1.25″ × 0.3″ board. The sensors are mounted on a 0.375″ pitch, allowing this array to be used as a minimal detector for a line-following robot. Each sensor provides a separate digital I/O-measurable voltage output .

$ 6.95

Out of Local Stock

We can ship 365 more in 7 days

QTR-HD-01A Reflectance Sensor: 1-Channel, 5mm Wide, Analog Output

Code: SKU-004911

sensors size (mm) output max current optimal range LED board 1 5.0 × 20.0 analogue 30 mA 32 mA 5 mm This IR LED/phototransistor pair is great for precisely identifying changes in reflectance (like line detection).

$ 2.50

Out of Local Stock

We can ship 284 more in 7 days

QTR-HD-01RC Reflectance Sensor: 1-Channel, 5mm Wide, RC Output

Code: SKU-004909

sensors size (mm) output max current optimal range LED board 1 5.0 × 20.0 RC (digital) 30 mA 32 mA 5 mm This IR LED/phototransistor pair is great for precisely identifying changes in reflectance (like line detection).

$ 2.50

Out of Local Stock

We can ship 391 more in 7 days

QTR-HD-02A Reflectance Sensor Array: 2-Channel, 4mm Pitch, Analog Output

Code: SKU-004817

sensors pitch size (mm) output max current optimal range LED board 2 4 mm 10.2 × 20.0 analogue 30 mA 32 mA 5 mm This array of IR LED/phototransistor pairs is great for precisely identifying changes in contrast/reflectance (like line-detect...

$ 2.95

Out of Local Stock

We can ship 113 more in 7 days

QTR-HD-02RC Reflectance Sensor Array: 2-Channel, 4mm Pitch, RC Output

Code: SKU-004815

sensors pitch size (mm) output max current optimal range LED board 2 4 mm 10.2 × 20.0 RC (digital) 30 mA 32 mA 5 mm This array of IR LED/phototransistor pairs is great for precisely identifying changes in contrast/reflectance (like line-de...

$ 2.95

Out of Local Stock

We can ship 122 more in 7 days

QTR-HD-03A Reflectance Sensor Array: 3-Channel, 4mm Pitch, Analog Output

Code: SKU-004982

pitch × sensors size (mm) output max current optimal range LED board 4 mm × 3 13.0 × 20.0 analogue 30 mA 62 mA 5 mm This array of IR LED/phototransistor pairs is great for precisely identifying changes in reflectance (like line detection).

$ 3.75

Out of Local Stock

We can ship 176 more in 7 days

QTR-HD-03RC Reflectance Sensor Array: 3-Channel, 4mm Pitch, RC Output

Code: SKU-004977

pitch × sensors size (mm) output max current optimal range LED board 4 mm × 3 13.0 × 20.0 RC (digital) 30 mA 62 mA 5 mm This array of IR LED/phototransistor pairs is great for precisely identifying changes in reflectance (like line detection).

$ 3.75

Out of Local Stock

We can ship 144 more in 7 days

QTR-HD-04A Reflectance Sensor Array: 4-Channel, 4mm Pitch, Analog Output

Code: SKU-004818

sensors pitch size (mm) output max current optimal range LED board 4 4 mm 17.0 × 20.0 analogue 30 mA 62 mA 5 mm This array of IR LED/phototransistor pairs is great for precisely identifying changes in contrast/reflectance (like line-detect...

$ 4.50

Out of Local Stock

We can ship 74 more in 7 days