This sensor module has 8 IR LED/phototransistor pairs mounted on a 0.375" pitch, making it a great detector for a line-following robot. Pairs of LEDs are arranged in series to halve current consumption, and a MOSFET allows the LEDs to be turned off for additional sensing or power-savings options. Each sensor provides a separate digital I/O-measurable output.
See 2110-630 for full technical information on the sensors and 2110-632 for information about breaking the module down and how to solder the included resistor. See related products below.
Application sheet for the QTR sensors