#include <WiFi.h>
#include "ThingSpeak.h"
const char* ssid = "Wokwi-GUEST";
const char* password = "";
WiFiClient client;
unsigned long myChannelNumber = 2341263;
const char * myWriteAPIKey = "KKAD490X1CQ1PZ8J";
// Timer variables
unsigned long lastTime = 0;
unsigned long timerDelay = 5000;
float val1=0,val2=0; 
void setup() {
Serial.begin(115200); //Initialize serial
WiFi.mode(WIFI_STA);
ThingSpeak.begin(client); // Initialize ThingSpeak
}
void loop() {
if ((millis() - lastTime) > timerDelay) {
// Connect or reconnect to WiFi
if(WiFi.status() != WL_CONNECTED){
Serial.print("Attempting to connect");
while(WiFi.status() != WL_CONNECTED){
WiFi.begin(ssid, password);
delay(5000);
}
Serial.println("\nConnected.");}
// Get a new sensor reading
val1=val1+10;
if(val1>120) 
val1=0;
val2=val2+20;
if(val2>100)
val2=0;
Serial.print("Val1 : ");
Serial.print("Val2 : ");
Serial.println(val2); 
// Write to ThingSpeak. There are up to 8 fields in a channel, allowing you to store up to different
// pieces of information in a channel. Here, we write to field 1.
//int x = ThingSpeak.writeField(myChannelNumber, 1, val1, myWriteAPIKey);
ThingSpeak.setField(1, val1);
ThingSpeak.setField(2, val2);
int x = ThingSpeak.writeFields(myChannelNumber, myWriteAPIKey);
if(x == 200) { Serial.println("Channel update successful."); }
else { Serial.println("Problem updating channel. HTTP error code " + String(x)); }
lastTime = millis();
 }
 }