#include <SoftwareSerial.h>

#define RX 10

#define TX 11

String AP = "WIFI_NAME"; // CHANGE ME

String PASS = "WIFI_PASSWORD"; // CHANGE ME

String API = "YOUR_API_KEY"; // CHANGE ME

String HOST = "api.thingspeak.com";

String PORT = "80";

String field = "field1";

int countTrueCommand;

int countTimeCommand;

boolean found = false;

int valSensor = 1;

SoftwareSerial esp8266(RX,TX);

void setup() {

Serial.begin(9600);

esp8266.begin(115200);

sendCommand("AT",5,"OK");

sendCommand("AT+CWMODE=1",5,"OK");

sendCommand("AT+CWJAP=\""+ AP +"\",\""+ PASS +"\"",20,"OK");

}

void loop() {

valSensor = getSensorData();

String getData = "GET /update?api_key="+ API +"&"+ field +"="+String(valSensor);

sendCommand("AT+CIPMUX=1",5,"OK");

sendCommand("AT+CIPSTART=0,\"TCP\",\""+ HOST +"\","+ PORT,15,"OK");

sendCommand("AT+CIPSEND=0," +String(getData.length()+4),4,">");

esp8266.println(getData);delay(1500);countTrueCommand++;

sendCommand("AT+CIPCLOSE=0",5,"OK");

}

int getSensorData(){

return random(1000); // Replace with

}

void sendCommand(String command, int maxTime, char readReplay[]) {

Serial.print(countTrueCommand);

Serial.print(". at command => ");

Serial.print(command);

Serial.print(" ");

while(countTimeCommand < (maxTime*1))

{

esp8266.println(command);//at+cipsend

if(esp8266.find(readReplay))//ok

{

found = true;

break;

}

countTimeCommand++;

}

if(found == true)

{

Serial.println("OYI");

countTrueCommand++;

countTimeCommand = 0;

}

if(found == false)

{

Serial.println("Fail");

countTrueCommand = 0;

countTimeCommand = 0;

}

found = false;

}

Itu bang, aku adanya yang sekalian sama thingspeakk