Hi I’m new here and looking for some help ! I’m currently working on a project of my own . It’s a heat following robot . It has two TMP36 temperature sensors (labelled temperature and temperature1 in the arduino code) connected to the arduino nano . And also connected is the L298N motor controller . I have a code already which converts the voltage from the sensors and displays a temperature, and in there I have put some basic code for the movement of the wheels from the motor . Unfortunately I’m very new to arduino , and I don’t get the syntax. All I need is to tweak my code to make the robot move forward and right if temperature>temperature1 and the other way if temperature1>temperature . I also need the robot to reverse if either temperature or temperature1 are above 40 degrees. I Have copy pasted my code below in case anyone can help me 
(ignore the comments I’m using them to learn lol)
#define sensorPin A0
#define sensorPin1 A1
// Motor A connections
//int enA = 9;
int in1 = 3;
int in2 = 4;
// Motor B connections
//int enB = 3;
int in3 = 5;
int in4 = 6;
void setup() {
// Begin serial communication at a baud rate of 9600:
Serial.begin(9600);
// Set all the motor control pins to outputs
//pinMode(enA, OUTPUT);
//pinMode(enB, OUTPUT);
pinMode(in1, OUTPUT);
pinMode(in2, OUTPUT);
pinMode(in3, OUTPUT);
pinMode(in4, OUTPUT);
// Turn off motors - Initial state
digitalWrite(in1, LOW);
digitalWrite(in2, LOW);
digitalWrite(in3, LOW);
digitalWrite(in4, LOW);
}
void loop() {
directionControl();
delay(1000);
speedControl();
delay(1000);
// Get a reading from the temperature sensor:
int reading = analogRead(sensorPin);
int reading1 = analogRead(sensorPin1);
// Convert the reading into voltage:
float voltage = reading * (5000 / 1024.0);
float voltage1 = reading1 * (5000 / 1024.0);
// Convert the voltage into the temperature in Celsius:
float temperature = (voltage - 500) / 10;
float temperature1 = (voltage1 - 500) / 10;
// Print the temperature in the Serial Monitor:
Serial.print(temperature);
Serial.print(" \xC2\xB0"); // shows degree symbol
Serial.println("C");
Serial.print(temperature1);
Serial.print(" \xC2\xB0"); // shows degree symbol
Serial.println("C");
delay(1000); // wait a second between readings
}
// This function lets you control spinning direction of motors
void directionControl() {
// Set motors to maximum speed
// For PWM maximum possible values are 0 to 255
//analogWrite(enA, 255);
//analogWrite(enB, 255);
// Turn on motor A & B
digitalWrite(in1, HIGH);
digitalWrite(in2, LOW);
digitalWrite(in3, HIGH);
digitalWrite(in4, LOW);
delay(2000);
// Now change motor directions
digitalWrite(in1, LOW);
digitalWrite(in2, HIGH);
digitalWrite(in3, LOW);
digitalWrite(in4, HIGH);
delay(2000);
// Turn off motors
digitalWrite(in1, LOW);
digitalWrite(in2, LOW);
digitalWrite(in3, LOW);
digitalWrite(in4, LOW);
}
// This function lets you control speed of the motors
void speedControl() {
// Turn on motors
digitalWrite(in1, LOW);
digitalWrite(in2, HIGH);
digitalWrite(in3, LOW);
digitalWrite(in4, HIGH);
// Accelerate from zero to maximum speed
//for (int i = 0; i < 256; i++) {
//analogWrite(enA, i);
//analogWrite(enB, i);
//delay(20);
//}
// Decelerate from maximum speed to zero
//for (int i = 255; i >= 0; --i) {
//analogWrite(enA, i);
//analogWrite(enB, i);
//delay(20);
//
}