Infrared and Light

The Devantech TPA81 thermopile array is an infrared sensor that can measure 8 adjacent pixels simultaneously in the 2um-22um spectrum enabling it to detect infrared radiation from people, flames or other sources. Can be used to track people! More details...

The Melexis MLX90614ESF-AAA is a high-accuracy, high-resolution, non-contact thermometer with a 90-degree field of view. It has a measurement resolution of 0.02°C and is factory calibrated for a wide -70 to 380°C object temperature range. The sensor uses an SMBus (I²C-compatible) digital interface and can be configured to output a customizable 10-bit PWM output for continuous readings. More details...

The 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 applications. The reflectance measurement is output as an analog voltage. More details...

The 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 applications. The output is designed to be measured by a digital I/O line. More details...

Ideally suited to a line following robot, the QTR-8RC Relectance Sensor array from Pololu features 8 Infrared (IR) LED/Phototransistor pairs which can be turned off for power savings. Each sensor provides a separate digital I/O measurable output. More details...

Ideal for accurate short range detection the Sharp GP2D120XJ00F infrared (IR) sensor ranges from a close up 4cm through to 30cm. Perfect as a reliable contact free bumper with advanced warning. More details...

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...

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...

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 project. More details...

This digital infrared distance sensor GP2Y0D810Z0F is Sharp's smallest and fastest distance sensor and is combined here with Pololu's carrier board which has all the circuitry to enable the sensor to be wired up to a microcontroller. Ideal as a non-contact bumper switch the sensor detects from 2 to 10cm. More details...