QTR-HD-07RC - module with 7 reflectance sensor with RC (digital) output

Reflection sensor module with 1 QTRXL-HD optocoupler with analogue output. The module is powered by 2.9 ... 5.5V voltage, detects objects at a distance of up to 80mm. Pololu 4641

Module with 6 QTRX type optocoupler with RC (digital) output. The module operates from 2.9 V to 5.5 V, detects objects at a distance of up to 40 mm. The sensor will be used in projects that require detection of changes in the ground, e.g. in linefollower robots. Pololu 4346

Module with 5 QTR type optocoupler with analog output. The module operates from 2.9 V to 5.5 V, detects objects at a distance of up to 40 mm. The sensor will be used in projects that require detection of changes in the ground, e.g. in linefollower robots. Pololu 4245

Module with 5 QTR type optocoupler with RC (digital) output. The module operates from 2.9 V to 5.5 V, detects objects at a distance of up to 40 mm. The sensor will be used in projects that require detection of changes in the ground, e.g. in linefollower robots. Pololu 4105

Matrix module of six reflection sensors for the Zumo robot. The module allows you to easily add line detection or edge detection to the robot. Pololu 1419

Module with 4 QTRX type optocoupler with analog output. The module operates from 2.9 V to 5.5 V, detects objects at a distance of up to 40 mm. The sensor will be used in projects that require detection of changes in the ground, e.g. in linefollower robots. Pololu 4404

QTR-3A Reflectance Sensor Array

Module with 5 QTRX type optocoupler with analog output. The module operates from 2.9 V to 5.5 V, detects objects at a distance of up to 40 mm. The sensor will be used in projects that require detection of changes in the ground, e.g. in linefollower robots. Pololu 4445

SEN-13582

Infrared sensor module with TCRT5000 chip. It can be used to detect objects in close proximity or detect lines in "Line Follower" robots

This module can be applied to intellectual robot, obstacle avoidance car, counter device in the pipeline, black and white lines tracking device. This infrared sensor contains two parts: an infrared transmitter and an infrared receiver. 

Module with 3 QTRX type optocoupler with analog output. The module operates from 2.9 V to 5.5 V, detects objects at a distance of up to 30 mm. The sensor will be used in projects that require detection of changes in the ground, e.g. in linefollower robots. Pololu 4443

A reflective sensor that precisely measures the intensity of light reflected from a surface using an IR LED and a phototransistor. It offers a long detection range—optimally around 20 mm, and up to 80 mm—thanks to the QTRXL sensor with a built-in lens and adjustable LED brightness. It generates a digital RC signal that\'s easily read by microcontrollers like Arduino or Raspberry Pi. Pololu 4540

Module with five reflection sensors. It has digital and analogue outputs. Thanks to the embedded EEPROM memory, it enables easy sensor calibration. Cytron Maker Line

Module with 4 QTRX type optocoupler with RC (digital) output. The module operates from 2.9 V to 5.5 V, detects objects at a distance of up to 40 mm. The sensor will be used in projects that require detection of changes in the ground, e.g. in linefollower robots. Pololu 4344

Module with 4 QTRX type optocoupler with RC (digital) output. The module operates from 2.9 V to 5.5 V, detects objects at a distance of up to 40 mm. The sensor will be used in projects that require detection of changes in the ground, e.g. in linefollower robots. Pololu 4304