#include <WiFi.h>
#include <ThingSpeak.h>
#include <stdio.h>
char ssid[] = "Wokwi-GUEST";
char pass[] = "";
WiFiClient client;
unsigned long myChannelNumber = 2500466;
const char * myWriteAPIKey = "25LUPA7MGIROSXOK";
int statusCode;
int fieldnum[] = {1,2,3,4};
int ledPin[] = {12,13,25,26};
int inputPin[] ={15,2,4,5};
int val[] = {0,0,0,0};
int pirState[]= {LOW,LOW,LOW,LOW};
void setup()
{
for(int i=0;i<4;i++)
{
pinMode(ledPin[i], OUTPUT); // declare LED as output
pinMode(inputPin[i], INPUT);
}
Serial.begin(115200);
WiFi.mode(WIFI_STA);
ThingSpeak.begin(client);
}
void loop() {
connectToCloud();
computeData(fieldnum,ledPin,inputPin);
delay(100);
}
void connectToCloud()
{
if(WiFi.status() != WL_CONNECTED)
{
Serial.print("Attempting to connect");
while(WiFi.status() != WL_CONNECTED)
{
WiFi.begin(ssid, pass);
for(int i=0;i<5;i++)
{
Serial.print(".");
delay(1000);
}
}
Serial.println("\nConnected.");
}
}
void computeData(int fieldnum[] , int ledPin[] , int inputPin[])
{
//pinMode(ledPin, OUTPUT); // declare LED as output
//pinMode(inputPin, INPUT);
for(int i=0;i<4;i++)
{
val[i] = digitalRead(inputPin[i]); // read input value
if (val[i] == HIGH) { // check if the input is HIGH
digitalWrite(ledPin[i], HIGH); // turn LED ON
if (pirState[i] == LOW) {
// we have just turned on
Serial.println("Motion detected!");
// We only want to print on the output change, not state
pirState[i] = HIGH;
//writeData(fieldnum ,HIGH);
}
} else {
digitalWrite(ledPin[i], LOW); // turn LED OFF
if (pirState[i] == HIGH) {
// we have just turned of
Serial.println("Motion ended!");
// We only want to print on the output change, not state
pirState[i] = LOW;
//writeData(fieldnum , LOW);
}
}
}
for(int i=0;i<4;i++)
{
ThingSpeak.setField(fieldnum[i] , pirState[i]);
}
statusCode = ThingSpeak.writeFields(myChannelNumber,myWriteAPIKey);
if(statusCode == 200) //successful writing code
Serial.println("Channel update successful.");
else
Serial.println("Problem Writing data. HTTP error code :" +
String(statusCode));
delay(10000);
}