Pololu's whole QTR line behind one tile: pick the series, then the model. The HD boards read on a 4 mm pitch and the MD boards on 8 mm; QTRX swaps in lensed emitters that draw a tenth of the current for the same reading. The four original QTR-1, QTR-3, QTR-8 and QTR-L-1 boards are here too. Every model's A (analog) and RC (digital) versions are the same board, so the output type is not a choice the geometry makes.

Made by

Pololu

Kind

Circuit board (PCB)

Licence

CC-BY-SA-4.0

Keywords

pololu, qtr, qtrx, reflectance, sensor, array, line, follower, infrared, ir, emitter, phototransistor, edge, ground, analog, digital