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Using IR Sensor (TCRT 5000) With Arduino

This tutorial is on the IR sensor application. It also specifies a method to remove static and low-frequency noise.

Jul 12, 2020

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tcrt5000

Components and supplies

Arduino Uno Rev3

5k Ohm resistor

Resistor 100 ohm

TCRT5000

Apps and platforms

Arduino IDE

Project description

Code

Remove static noise from IR sensor data

arduino

This code Static and the low-frequency noise from sensor data.

1/*
2This code is to Remove ambience noise from sensor data.
3IR LED  connected to Digital pin: 6
4IR diode connected to analog input:A3
5
6by-Abhilash  Patel
7*/
8int a,b,c;
9void setup() 
10{
11Serial.begin(9600);
12pinMode(6,OUTPUT);
13}
14
15void  loop() {
16 digitalWrite(6,HIGH);    // Turning ON LED
17 delayMicroseconds(500);  //wait
18 a=analogRead(A3);        //take reading from photodiode(pin A3) :noise+signal
19  digitalWrite(6,LOW);     //turn Off LED
20 delayMicroseconds(500);  //wait
21  b=analogRead(A3);        // again take reading from photodiode :noise
22c=a-b;                    //taking differnce:[ (noise+signal)-(noise)] just signal
23
24//Serial.print(a);         //noise+signal
25//Serial.print("\	");
26//Serial.print(b);         //noise
27//Serial.print("\	");
28Serial.println(c);         // denoised signal
29 
30}

/*
This code is to Remove ambience noise from sensor data.
IR LED  connected to Digital pin: 6
IR diode connected to analog input:A3

by-Abhilash  Patel
*/
int a,b,c;
void setup() 
{
Serial.begin(9600);
pinMode(6,OUTPUT);
}

void  loop() {
 digitalWrite(6,HIGH);    // Turning ON LED
 delayMicroseconds(500);  //wait
 a=analogRead(A3);        //take reading from photodiode(pin A3) :noise+signal
  digitalWrite(6,LOW);     //turn Off LED
 delayMicroseconds(500);  //wait
  b=analogRead(A3);        // again take reading from photodiode :noise
c=a-b;                    //taking differnce:[ (noise+signal)-(noise)] just signal

//Serial.print(a);         //noise+signal
//Serial.print("\	");
//Serial.print(b);         //noise
//Serial.print("\	");
Serial.println(c);         // denoised signal
 
}

Downloadable files

Schematic for connection

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