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

ISO6521 2-Channel Digital Isolator Carrier, 1/1, Default High, Functional Isolation
QTRXL-MD-01A-S Reflectance Sensor: 1-Channel, 8mm Wide, Analog Output, Long Range, Side-Entry Connector
Motoron M3T453 Triple I²C Motor Controller with JST SH-Style Connectors and VIN Terminal Block
APM81815 Step-Down Voltage Regulator Carrier, 12V Out
APM81815 Step-Down Voltage Regulator Carrier, 3.3V Out
Pololu RC Switch with Isolated Solid State Relay/Switch, SPST, 60V, 6A
ACS37042KLHBLT-010B5 Current Sensor Compact Carrier -10A to +10A, 5V
ACS37041KLHBLT-010B3 Current Sensor Compact Carrier -10A to +10A, 3.3V
Pololu Basic SPDT Relay Carrier with 5VDC Relay, Terminal Blocks, and JST SH-Style Top-Entry Connector
MP6602 Stepper Motor Driver Carrier
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