Arduino Low Cost High Power Motor Driver 1 to 220V

1const int in1 = 9;
2const int in2 = 8;
3const int in3 = 4;
4const  int in4 = 3;
5
6void setup() {
7  pinMode (in1, OUTPUT);
8  pinMode (in2,  OUTPUT);
9  pinMode (in3, OUTPUT);
10  pinMode (in4, OUTPUT);
11
12}
13
14void  loop() {
15      //Move Farword 
16      digitalWrite(in1, HIGH); 
17      digitalWrite(in2,  LOW); 
18      digitalWrite(in3, HIGH); 
19      digitalWrite(in4, LOW);
20      delay(2000);
21
22      //Move Reverse 
23      digitalWrite(in1, LOW); 
24      digitalWrite(in2,  HIGH); 
25      digitalWrite(in3, LOW); 
26      digitalWrite(in4, HIGH);
27      delay(2000);
28
29      //Move Left 
30      digitalWrite(in1, HIGH); 
31      digitalWrite(in2, LOW); 
32      digitalWrite(in3, LOW); 
33      digitalWrite(in4,  HIGH);
34      delay(2000);
35
36     //Move Right
37      digitalWrite(in1,  LOW); 
38      digitalWrite(in2, HIGH); 
39      digitalWrite(in3, HIGH); 
40      digitalWrite(in4, LOW);
41      delay(2000);
42     
43      
44}
45