Digital IR Sensor Array 10RC

If your Arduino Uno (that has only 6 ADC pins) is restricting you from buying a better 8 or 10 IR based analog line detection sensor, this product is for you. It’s similar to the polulu QTR-8RC sensor, but contains more IR sensors. It has 1cm spacing between IR sensors and got a total of 10 sensors. The signal pins can be connected to any digital/analog pin of any Arduino board.

Unlike other digital line follower sensors that use op-amps as comparator and provide only 1 & 0 as signal, it provides 0-4096 by using capacitor discharge time. That means this digital sensor can provide outputs like an analog sensor. It can measure white & black & all the greyscale colors in-between.

Moreover, this sensor has got IR LED control option that lets you turn ON and OFF the IR LEDs of the sensor array using a digital pin of Arduino. That ensures unnecessary power consumption when the sensors are not in use. Moreover, the ability to read IR sensors while turning ON and OFF the IR LEDs helps to eliminate effect of flash lights and sunlight.