SparkFun Line Sensor Breakout - QRE1113 (Digital)
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Measure reflected infrared light with this digital QRE1113 breakout. A capacitor-discharge circuit converts reflectance into a timing measurement for a digital host connection, with faster discharge corresponding to a more reflective surface. The small board supports line-following experiments in compatible 3.3-volt or five-volt systems without requiring a host analog input.
Before you buy
Review timing code, sensor height, ambient light and target contrast before using readings for robot steering.
SparkFun SKU: ROB-09454 · Category: Robot line sensors
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Official product specifications and documentation
EAR summary based on supplier documentation; this is not a hands-on review. Product identity rechecked during the October 25, 2026 sprint. Current SparkFun Originals eligibility was verified with the supplier’s Original: Yes filter during the October 25, 2026 sprint. Affiliate eligibility remains subject to SparkFun's program terms.