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: MCU-60220
This sensor uses an infrared emitted diode combined with an infrared phototransistor to detect the reflected infrared signal. Ideal for sensing black-to-white transitions or can be used to detect nearby objects (.5-1cm). More Details...
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Code: SKU-010214
Passive Infrared (PIR) sensors are great for detecting motion in a small area around the sensor. More Details...
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Code: SKU-009625
The PureThermal 3 FLIR Lepton Smart I/O Module is a hackable thermal webcam module for the FLIR Lepton Longwave Infrared (LWIR) camera core. More Details...
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Code: SKU-007090
The PureThermal Mini Pro JST-SR is a hackable, plug-and-play UVC thermal webcam board featuring an included 160x120 radiometric FLIR Lepton 3.5 sensor. More Details...
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Code: SKU-005003
The MLX90640 SparkFun IR Array Breakout is equipped with a 110° FOV, 32x24 array of thermopile sensors creating a low resolution thermal imaging camera. More Details...
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Code: SKU-000769
This is an evaluation board for the MLX90614 IR Thermometer. The sensor is connected to an ATmega328 running at 3.3V with a STK500 (Arduino) 8MHz bootloader. More Details...
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Code: SKU-002157
The SparkFun Line Follower Array is a long board consisting of eight IR sensors that have been configured to read as digital bits! We have designed the SparkFun Line Follower Arrays to follow a dark line of about ¾ inch width or smaller (spray paint or electrical tape) on a light background. More Details...
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Code: SKU-000422
This version of the QRE1113 breakout board features an easy-to-use analogue output which will vary depending on the amount of IR light reflected back to the sensor. More Details...
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Code: SKU-011279
The SparkFun Micro Proximity Sensor packs the VCNL4040's reliable, no-dead-zone presence detection and ambient light sensing into our smallest Qwiic form factor. More Details...
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Code: SKU-010213
The Qwiic Mini Human Presence and Motion Sensor is built around the STHS34PF80 low-power, high-sensitivity IR sensor for presence and motion detection. More Details...
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