Robot TANK + ESP8266 mission record humidity and temp

L298 Motor drive bord.

Code for control motor.

#include<SoftwareSerial.h>

char receivedChar;

int ENA=2;

int IN1=3;

int IN2=4;

int IN3=5;

int IN4=6;

int ENB=7;

int ENA1=A0;

int IN11=A1;

int IN12=A2;

int IN13=A3;

int IN14=A4;

int ENB1=A5;

SoftwareSerial mySerial(10, 11); // RX, TX

//RX on Bluetooth to TCX on Arduino through a voltage divider 50ohm from arduino and 100ohm to ground. This is so we can drop the the voltage down to 3.3v (roughly)

// Use blueterm on android to get messages

void setup()

{ 

 pinMode(ENA,OUTPUT);//output

 pinMode(ENB,OUTPUT);

 pinMode(IN1,OUTPUT);

 pinMode(IN2,OUTPUT);

 pinMode(IN3,OUTPUT);

 pinMode(IN4,OUTPUT);

 pinMode(ENA1,OUTPUT);//output

 pinMode(ENB1,OUTPUT);

 pinMode(IN11,OUTPUT);

 pinMode(IN12,OUTPUT);

 pinMode(IN13,OUTPUT);

 pinMode(IN14,OUTPUT);

  

  mySerial.begin(9600); 

}

void loop() // run over and over

{

  

  while (!mySerial.available());   // stay here so long as COM port is empty

  receivedChar = mySerial.read();

  if (receivedChar == 'A') {

    Serial.print(receivedChar);

            //digitalWrite(ENA,LOW);

            // digitalWrite(ENB,LOW);// High is start driving car

              

             digitalWrite(ENA,HIGH);

             digitalWrite(ENB,HIGH);// High is start driving car

  

             digitalWrite(IN1,HIGH); 

             digitalWrite(IN2,LOW);//setting motorA's directon

             digitalWrite(IN3,LOW);

             digitalWrite(IN4,HIGH);//setting motorB's directon

  }

              

  if (receivedChar == 'B') {

             // digitalWrite(ENA,LOW); Backward

             // digitalWrite(ENB,LOW);// High is start driving car

              

              

                    

             digitalWrite(ENA,HIGH);

             digitalWrite(ENB,HIGH);// High is start driving car

  

             digitalWrite(IN1,LOW); 

             digitalWrite(IN2,HIGH);//setting motorA's directon

             digitalWrite(IN3,HIGH);

             digitalWrite(IN4,LOW);//setting motorB's directon

                         

  }      

  if (receivedChar == 'C') 

  

              {

             // digitalWrite(ENA,LOW);Left

             // digitalWrite(ENB,LOW);// High is start driving car

  

             digitalWrite(ENA,HIGH);

             digitalWrite(ENB,HIGH);// High is start driving car

  

             digitalWrite(IN1,HIGH); 

             digitalWrite(IN2,LOW);//setting motorA's directon

             digitalWrite(IN3,HIGH);

             digitalWrite(IN4,LOW);//setting motorB's directon

             

  } // if it is a 3 flash the LED

  if (receivedChar == 'D') {

  

              //digitalWrite(ENA,LOW);

              //digitalWrite(ENB,LOW);// High is start driving car

              

                          

             digitalWrite(ENA,HIGH);

             digitalWrite(ENB,HIGH);// High is start driving car

  

             digitalWrite(IN1,LOW); 

             digitalWrite(IN2,HIGH);//setting motorA's directon

             digitalWrite(IN3,LOW);

             digitalWrite(IN4,HIGH);//setting motorB's directon

  } // if it is a 4 print out lots of sensor data

  if (receivedChar == 'E') {

  

             digitalWrite(ENA,HIGH);

             digitalWrite(ENB,HIGH);// High is start driving car

  

             digitalWrite(IN1,LOW); 

             digitalWrite(IN2,LOW);//setting motorA's directon

             digitalWrite(IN3,LOW);

             digitalWrite(IN4,LOW);//setting motorB's directon

  

  }

  

}

How to make mobile app control 

ESP 8266 To Think speak

     Code

//ตัวนี้ใช้ได้ดีมาก
#include <SoftwareSerial.h>
#include <stdlib.h>
#include "DHT.h"

DHT dht;


int sensor1State=0;
int sensor2State=0;
//int sensor3State=0;
//int sensor4State=0;


// replace with your channel's thingspeak API key
String apiKey = "Your API from web ";

// connect 10 to TX of ESP8266
// connect 11 to RX of ESP8266
SoftwareSerial ser(10, 11); // RX, TX

int i=1;



void setup() {  

// DHT

dht.setup(2); // data pin 2

                  
  
  Serial.begin(9600); 
  
  ser.begin(9600);
  
  // reset ESP8266
  ser.println("AT+RST");
}


// the loop 
void loop() {


  delay(dht.getMinimumSamplingPeriod());

float humidity = dht.getHumidity(); // ดึงค่าความชื้น
float temperature = dht.getTemperature(); // ดึงค่าอุณหภูมิ

Serial.print(dht.getStatusString());
Serial.print("\t");
Serial.print(humidity, 1);
Serial.print("\t\t");
Serial.print(temperature, 1);
Serial.print("\t\t");
Serial.println(dht.toFahrenheit(temperature), 1);

  sensor1State = humidity ;//digitalRead(sensor1);
  sensor2State = temperature; //digitalRead(sensor2);


  String state1=String(sensor1State);
  
  
  String state2=String(sensor2State);
  
  

  // server connect
  String cmd = "AT+CIPSTART=\"TCP\",\"";
  cmd += "184.106.153.149"; // api.thingspeak.com
  cmd += "\",80";
  ser.println(cmd);
  Serial.println(cmd);
   
 if(ser.find("Error")){
Serial.println("AT+CIPSTART error");
return;
  }
  
  // prepare GET string
  String getStr = "GET /update?api_key=";
  getStr += apiKey; 
  getStr +="&field1=";
  getStr += String(state1);
  getStr +="&field2=";
  getStr += String(state2);

  getStr += "\r\n\r\n";

  // send data length
  cmd = "AT+CIPSEND=";
  cmd += String(getStr.length());
  ser.println(cmd);
  Serial.println(cmd);

  if(ser.find(">")){
    ser.print(getStr);
    Serial.print(getStr);
  }
  else{
    ser.println("AT+CIPCLOSE");
    // alert user
    Serial.println("AT+CIPCLOSE");
  }
    
  // thingspeak needs 15 sec delay between updates
  delay(16000);  
}