Calculating the average of an analog read

Projects Programming
1

is there anyway calculate an average of an int analogRead values from a sensor and store in another int ?

For example: 6 readings

10, 12, 11, 12, 35, 11

and average them?

thank you guys

2

Seriously?

3

is there anyway calculate an average of an int analogRead values from a sensor and store in another int ?

How would you do it using a pencil and paper ?

4

Hello guys, I have two Sharp IR sensor and my program is compering the two analog reading but the other sensor is spiking a lot, and is there a way to average my analog reading by numReading = 6; here is the link in the arduino website, i just dont understand it.

thank you guys

5

//collects data from an analog sensor

int sensorpin = A0; // analog pin used to connect the sharp sensor
int val = 0; // variable to store the values from sensor(initially zero)
int sensorpin1 = A1;
int val1 = 0;
#include <SoftwareSerial.h>
SoftwareSerial SIM900A(6,7);

void setup()

{
Serial.begin(9600); // starts the serial monitor
SIM900A.begin(9600);
}

void loop()
{

val = analogRead(sensorpin); // reads the value of the sharp sensor
Serial.println(val); // prints the value of the sensor to the serial monitor
delay(600); // wait for this much time before printing next value

val1 = analogRead(sensorpin1);
Serial.println(val1);
delay(800);

if (val > val1);
IRtxt1();

if (val = val1);
IRtxt2();

if (val1 < val);
IRtxt3();
}

void normal(){
SIM900A.println("AT+CMGF=1");
delay(500);
SIM900A.println("AT+CMGS="+639359753016"\r");
delay(500);
SIM900A.println("Water Level: NORMAL");
delay(500);
SIM900A.println((char)26);
delay(4500);
}
void IRtxt1(){
SIM900A.println("AT+CMGF=1");
delay(500);
SIM900A.println("AT+CMGS="+639359753016"\r");
delay(500);
SIM900A.println("WARNING! Water overflow );
delay(500);
SIM900A.println((char)26);
delay(5000);
}

void IRtxt2(){
SIM900A.println("AT+CMGF=1");
delay(500);
SIM900A.println("AT+CMGS="+639359753016"\r");
delay(500);
SIM900A.println("Normal");
delay(500);
SIM900A.println((char)26);
delay(5000);

}
void IRtxt3(){
SIM900A.println("AT+CMGF=1");
delay(500);
SIM900A.println("AT+CMGS="+639359753016"\r");
delay(500);
SIM900A.println("yes");
delay(500);
SIM900A.println((char)26);
delay(5000);

6

Khael123:
Hello guys, I have two Sharp IR sensor and my program is compering the two analog reading but the other sensor is spiking a lot, and is there a way to average my analog reading by numReading = 6; here is the link in the arduino website, i just dont understand it.

https://www.arduino.cc/en/Tutorial/Smoothing

thank you guys

Since the Arduino has only A/D converter, I have seen answers recommending reading each pin twice and using only the second value.

Paul

8 
if (val = val1);

= for assignment
== for comparison

and delete the semicolons from the end of your if lines