Qtr-8a reflectance sensor array datasheet pdf

The outputs are all independent, but the leds are arranged in pairs to halve current consumption. Pid based line following robot with pololu qtr 8rc sensor array. Users guide for the qtr8a reflectance sensor array. Pololu qtr8a and qtr8rc reflectance sensor array user. Pololu qtr reflectance sensor application note printable pdf information about using the pololu qtr reflectance sensors, including differences between atype and rctype sensors and sample oscilloscope screen captures of sensor outputs. The module is a convenient carrier for eight ir emitter and receiver phototransistor pairs evenly spaced at intervals of 0. It prints the sensor values to the serial monitor as numbers from 0 maximum reflectance to minimum reflectance followed by the estimated location of the line as a number from 0 to 5000.

How to program a qtr8rc reflectance sensor array youtube. The qtr8rc reflectance sensor array is intended as a line sensor, but it can be used as a generalpurpose proximity or reflectance sensor. Pdf qtr8a and qtr8rc reflectance sensor array users. Qtr8a sensor outputs the qtr8a reflectance sensor array has eight distinct sensor outputs, one from each ledphototransistor pair. Arduino library for the pololu qtr reflectance sensors. Pololu corporation qtr8rc reflectance sensor array sensor. Before going on to the building of the robot,we need to under.

Purpose of this video is to explain what parts of the code you actually need in order to use the line following sensor, since the majority of the code includes buttons, servos and an ultrasonic. These outputs are analog voltages ranging from 0 v to vcc which must be between 3. Pid based line following robot with pololu qtr 8rcsensor. Qtr8a reflectance sensor array australia core electronics. Each sensor provides a separate digital iomeasurable output. The qtr8a reflectance sensor array is intended as a line sensor, but it can be used as a generalpurpose proximity or reflectance sensor.