COVID-19 impact: We are still operating and shipping all orders! We are operating with a reduced staff, so for critical requirements, including fighting COVID-19, please contact us so we can identify priorities. Click here for more info.

Arduino Library for the Pololu QTR Reflectance Sensors

Arduino IDE with Pololu QTR sensors superimposed over it.

View entire document on a single page.
You can also view this document as a printable PDF.

1. Introduction
2. Library Installation
3. QTRSensors Methods & Usage Notes

New Products

6-Pin Female JST SH-Style Cable 75cm
12V, 4.5A Step-Down Voltage Regulator D36V50F12
3.3V, 6.5A Step-Down Voltage Regulator D36V50F3
50:1 Metal Gearmotor 37Dx70L mm 24V with 64 CPR Encoder (Helical Pinion)
6.3:1 Metal Gearmotor 37Dx50L mm 12V (Helical Pinion)
150:1 Metal Gearmotor 37Dx73L mm 24V with 64 CPR Encoder (Helical Pinion)
Free Circuit Cellar magazine September 2019
Free Circuit Cellar magazine January 2020
RoboClaw 2x60AHV, 60VDC Motor Controller (V7B)
Pololu Wheel for Micro Servo Splines (20T, 4.8mm) - 60×8mm, Red, 2-Pack
Log In
Pololu Robotics & Electronics
Shopping cart
(702) 262-6648
Same-day shipping, worldwide
Menu
Shop Blog Forum Support
My account Comments or questions? About Pololu Contact Ordering information Distributors