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USER GUIDE FOR 8ch IR sensor Array
USER GUIDE FOR
8 Channel IR Sensor Array
Fig 1 8ch IR sensor Array.
Introduction
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
analog voltage output.
Features
Operating voltage: 5.0 V
Supply current: 100 mA
Output format: 8 Analog and Digital voltages
Output voltage range: 0 V to Supplied voltage
Optimal sensing distance: 0.125″ (3 mm)
Maximum recommended sensing distance: 0.25″ (6 mm)
The module is a convenient carrier for eight IR emitter and receiver pairs evenly
spaced at intervals of 0.375″ (9.525 mm).
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USER GUIDE FOR 8ch IR sensor Array
Explanation:
First we see basic working of IR pair using LM324. LM324 is used as a comparator
here. We give a reference voltage to its input using a 10k pot. When the voltage across
the receiver is less than this reference voltage, the comparator gives low output and
when the voltage is more than the reference point, the comparator gives a high output.
Arrangement of this is given in below fig 2.This figure show the arrangement of
single channel, for 8 channel repeat the same.
In our circuit there are 8 analog or 8 digital output are available.
Fig.2 single channel IR.
Pin Description
Pin Number
1
2
3
5
Pin Name
S1 to S8 ( Right side)
S1 to S8 (Left side)
GND
VCC
Description
Digital Output of sensor
Analog output of Sensor
Ground Pin
Vcc Supply Voltage
Applications
In Line follower robot
In Obstacle detection.
Ordering Information
K-IMAGINATIONS,
Pune
9960860390
E-mail us at:[email protected] , [email protected]
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