Advanced Speak to Move: Building a Smart Voice-Controlled Rover

1#define IN1 16
2#define IN2 17
3#define IN3 18
4#define IN4 19
5#define ENA 5
6#define ENB 6
7#include <BlynkSimpleEsp32_BT.h>
8 
9char auth[] = "YourAuthToken";
10 
11void setup() {
12    pinMode(IN1, OUTPUT);
13    pinMode(IN2, OUTPUT);
14    pinMode(IN3, OUTPUT);
15    pinMode(IN4, OUTPUT);
16    pinMode(ENA, OUTPUT);
17    pinMode(ENB, OUTPUT);
18    Blynk.begin(auth);
19}
20 
21void loop() {
22    Blynk.run();
23}
24 
25BLYNK_WRITE(V1) {
26    String command = param.asStr();
27    if (command == "forward") {
28        moveForward();
29    } else if (command == "backward") {
30        moveBackward();
31    } else if (command == "left") {
32        turnLeft();
33    } else if (command == "right") {
34        turnRight();
35    } else if (command == "stop") {
36        stopMotors();
37    }
38}
39 
40void moveForward() {
41    digitalWrite(IN1, HIGH);
42    digitalWrite(IN2, LOW);
43    digitalWrite(IN3, HIGH);
44    digitalWrite(IN4, LOW);
45}
46 
47void moveBackward() {
48    digitalWrite(IN1, LOW);
49    digitalWrite(IN2, HIGH);
50    digitalWrite(IN3, LOW);
51    digitalWrite(IN4, HIGH);
52}
53 
54void turnLeft() {
55    digitalWrite(IN1, LOW);
56    digitalWrite(IN2, HIGH);
57    digitalWrite(IN3, HIGH);
58    digitalWrite(IN4, LOW);
59}
60 
61void turnRight() {
62    digitalWrite(IN1, HIGH);
63    digitalWrite(IN2, LOW);
64    digitalWrite(IN3, LOW);
65    digitalWrite(IN4, HIGH);
66}
67 
68void stopMotors() {
69    digitalWrite(IN1, LOW);
70    digitalWrite(IN2, LOW);
71    digitalWrite(IN3, LOW);
72    digitalWrite(IN4, LOW);
73}