Save 15% on “active” status Pololu-brand products using code MEMORIALDAY26

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

MP6603 Stepper Motor Driver Carrier
ACS37030LMYATR-065B3 Current Sensor Large Carrier -65A to +65A, 3.3V
Magnetic Encoder Pair Kit with Side-Entry Connector for 20D mm Metal Gearmotors, 20 CPR, 2.7-18V
Magnetic Encoder Pair Kit with Top-Entry Connector for 20D mm Metal Gearmotors, 20 CPR, 2.7-18V
3.3V, 600mA Step-Down Voltage Regulator D24V7F3
Breakout for JST PH-Style Connector, 6-Pin Male Top-Entry, with SH
Pololu Basic SPDT Relay Carrier with 5VDC Relay, Terminal Blocks, and JST SH-Style Top-Entry Connector
Pololu Digital Distance Sensor v2, 15cm, Side-Entry Connector
JST PH-Style Cable, 4-Pin, Female-Female, 63cm
QTRXL-MD-01RC-S Reflectance Sensor: 1-Channel, 8mm Wide, RC Output, Long Range, Side-Entry Connector
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