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.
Code: SKU-005312
pitch × sensors size (mm) output max current optimal range LED board 8 mm × 16 125.0 × 16.5 RC (digital) 30 mA 250 mA 5 mm This array of IR LED/phototransistor pairs is great for precisely identifying changes in reflectance (like line detection). More Details...
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Code: SKU-005314
pitch × sensors size (mm) output max current optimal range LED board 8 mm × 16 125.0 × 16.5 RC (digital) 3.5 mA 34 mA 10 mm This array of IR LED/phototransistor pairs is great for precisely identifying changes in reflectance (like line detection). More Details...
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Code: SEN-10002
Excellent long range sensing makes the cheap Sharp GP2Y0A02YK0F infrared sensor a suitable alternative to ultrasonic sensors for many applications with its range from 20cm to 150cm (8-59"). More Details...
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Code: SEN-10003
One of the most popular sensors on the market this is the replacement of the Sharp GP2D12. The Sharp GP2Y0A21YK0F infrared (IR) sensor takes a continual distance reading from 10cm to 80cm (4-30") and outputs an analog voltage. More Details...
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Code: SEN-10018
This small digital distance sensor detects objects between 0.5 and 5 cm away. With its quick response time, small size, and low current draw, this sensor is a good choice for non-contact, close-proximity object detection, and Pololu's compact carrier PCB makes it easy to integrate into your proje... More Details...
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Code: SKU-004669
Get ready to be able to see like the Predator! The SparkFun Grid-EYE Infrared Array Breakout board is an 8x8 thermopile array, meaning you have a square array of 64 pixels capable of independent temperature detection. It’s like having a thermal camera, just in a lower resolution. More Details...
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Code: SKU-005004
It’s time to say hip hip array for this IR Breakout! The MLX90640 SparkFun IR Array Breakout is equipped with a 32x24 array of thermopile sensors creating, in essence, a low resolution thermal imaging camera. More Details...
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Code: SKU-000423
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. More Details...
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Code: SEN-010089
The Devantech TPA64 thermal imaging sensor measures temperatures from 0°c to +80°c using an 8 x 8 (64 Pixel) array providing an economical, low power and low computation way to detect objects that have different temperatures to their surroundings - like people. More Details...
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Code: SEN-10051
Infrared object detector with digital output and 3-80cm range. This simple sensor has a normally open output and detects an object within 80cm range. It can be used as a simple proximity sensor in many applications. More Details...
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