Tutorial Arduino Controllo Led Con Switch E Potenziometro

1#define ledpin 8
2#define btnpin 7
3
4int btnval = 0;
5int btnst  = 0;
6
7void setup() {
8  pinMode(ledpin, OUTPUT);
9  pinMode(btnpin, INPUT);
10  Serial.println(9600);
11}
12
13void loop() {  
14  btnval = digitalRead(btnpin);
15  if (btnval == HIGH & btnst == 0){
16    btnst = 1;
17    Serial.println(btnst);
18  }
19  else if (btnval == HIGH & btnst == 1){
20    btnst = 0;
21    Serial.println(btnst);
22  }
23  switch (btnst){
24    case 0:
25    digitalWrite(ledpin, LOW);
26    break;
27    case 1:
28    digitalWrite(ledpin, HIGH);
29    delay(analogRead(0));
30    digitalWrite(ledpin, LOW);
31    delay(analogRead(0));
32    break;
33  }
34  delay(500);
35}
36

1#define ledpin 8
2#define btnpin 7
3
4int btnval = 0;
5int btnst
6  = 0;
7
8void setup() {
9  pinMode(ledpin, OUTPUT);
10  pinMode(btnpin, INPUT);
11
12  Serial.println(9600);
13}
14
15void loop() {  
16  btnval = digitalRead(btnpin);
17
18  if (btnval == HIGH & btnst == 0){
19    btnst = 1;
20    Serial.println(btnst);
21
22  }
23  else if (btnval == HIGH & btnst == 1){
24    btnst = 0;
25    Serial.println(btnst);
26
27  }
28  switch (btnst){
29    case 0:
30    digitalWrite(ledpin, LOW);
31    break;
32
33    case 1:
34    digitalWrite(ledpin, HIGH);
35    delay(analogRead(0));
36
37    digitalWrite(ledpin, LOW);
38    delay(analogRead(0));
39    break;
40  }
41
42  delay(500);
43}
44