DIY ELECTRONICS

STORE

  • Arduino
  • Raspberry Pi
  • Micro-controllers
  • Digital & analog sensors
  • LEDs
  • Development boards
  • More +
SHOP NOW

PRODUCT ENGINEERING &

DESIGN

  • Prototyping (CNC/ 3DPrinting/ Laser Cutting)
  • Industrial Design
  • CAD/ Mechanical Engineering Design
  • Electronics/ Circuit Board Design
  • Programming (Hardware & Software)
  • Design for Manufacturing
  • More +
LEARN MORE

PRODUCT

MANUFACTURING

  • Injection Molding (Plastic/ Rubber/ Metal +)
  • Circuit Board Assembly
  • Product Assembly
  • Stencil
  • Packaging
  • Crowdfunding Fulfillment
  • More +
LEARN MORE
About Jaycon Systems
THE WORLD OF

JAYCON SYSTEMS

...where a bunch of geeks got together to make other people's ideas come to life.

Product was successfully added to your shopping cart.

QTR-1RC Reflectance Sensor

JS-1521

Be the first to review this product

The Pololu QTR-1RC reflectance sensor carries a single infrared LED and phototransistor pair. The phototransistor uses a capacitor discharge circuit that allows a digital I/O line on a microcontroller to take an analog reading of reflected IR by measuring the discharge time of the capacitor.

Availability: In stock

$2.49
Pricing:
$2.49 (10+) $2.24 (25+) $2.12
Availability:
7 units available in Store Request More Inventory
-+
Tags:

Details

Description:
The Pololu QTR-1RC reflectance sensor carries a single infrared LED and phototransistor pair. The phototransistor uses a capacitor discharge circuit that allows a digital I/O line on a microcontroller to take an analog reading of reflected IR by measuring the discharge time of the capacitor. Shorter capacitor discharge time is an indication of greater reflection.

The LED current-limiting resistor is set to deliver approximately 20-25 mA to the LED when VIN is 5 V. The current requirement can be met by some microcontroller I/O lines, allowing the sensor to be powered up and down through an I/O line to conserve power.

Due to its small size, multiple units can easily be arranged to fit various applications such as line sensing and proximity/edge detection.

Check out this awesome tutorial using an Arduino.

Features:

  • Dimensions: 0.3" x 0.5" x 0.1" (without header pins installed)
  • Operating voltage: 5.0 V
  • Supply current: 25 mA
  • Output format: digital I/O compatible
  • Optimal sensing distance: 0.125" (3 mm)
  • Maximum recommended sensing distance: 0.375" (9.5 mm)
  • Weight without header pins: 0.008 oz (0.23 g)

  1. Be the first to review this product

Write Your Own Review

How do you rate this product? *

  1 star 2 stars 3 stars 4 stars 5 stars
Quality
Price
Value