The QTR-8A reflectance sensor array is intended as a line sensor, but it can be used as a general-purpose proximity or reflectance sensor. The module is a convenient carrier for eight IR emitter and receiver (phototransistor) pairs evenly spaced at intervals of 0.375" (9.525 mm).

The Pololu QTR-8A [http://www.pololu.com/product/960] and QTR-8RC [http://www.pololu.com/product/961] reflectance sensor arrays are intended as line sensors, but they can be used as a general-purpose proximity or reflectance

The Pololu QTR-8A and QTR-8RC reflectance sensor arrays are intended as line sensors, but they can be used as a general-purpose proximity or reflectance sensors. Each module is a convenient carrier for eight IR emitter and receiver (phototransistor) pairs evenly spaced at intervals of 0.375" (9.525 mm).

2023年6月28日 · The QTR-8A reflectance sensor array is intended as a line sensor, but it can be used as a general-purpose proximity or reflectance sensor. The array module is a convenient carrier for eight IR emitter and receiver (phototransistor) pairs …

Autonomous Line Follower Robot Using QTR-8A (Reflectance Sensor Array) This repository contains the code for a line-following robot implemented on an Arduino platform. The robot utilizes infrared (IR) sensors to detect the position of a line on the ground and adjusts its movements accordingly to follow the line.

The Pololu QTR-8A Reflectance Sensor Array has 8 IR LED/phototransistor pairs mounted on a 0.375" pitch, making it a great detector for a line-following robot. Pairs of LEDs are arranged in series to halve current consumption, and a MOSFET allows the LEDs to be turned off for additional sensing or power-savings options.

Learn how to use the QTR-8A Reflectance Sensor Array with detailed documentation, including pinouts, usage guides, and example projects. Perfect for students, hobbyists, and developers integrating the QTR-8A Reflectance Sensor Array into their circuits.

QTR-8A reflectance sensor array on a 3/4" line with a quarter for size reference. View entire document on a single page. You can also view this document as a printable PDF .

2019年3月6日 · Pololu offered, until recently two different eight sensor arrays, the QTR-8RC and the QTR-8A. The RC array uses an RC circuit and capacitor decay time to determine a reflectance amount whereas the A array uses a voltage divider to determine a reflectance amount.