somebody could help me ?

Projects Programming
1

hello good morning could someone help me and tell me where is my mistake?

int conta = 0;
int tiempo = 0;
void setup() {
Serial.begin(9600);
pinMode(7,INPUT);
pinMode(13,OUTPUT);
}

void loop() {
if(digitalRead(7) == HIGH )
{
if ( digitalRead(7) == LOW )
{

for(int i = 5 ; i <= tiempo;i--)
{
if(digitalRead(7) == HIGH )
{
if ( digitalRead(7) == LOW )
{
i = i + 5;
}
}
Serial.println(i);

digitalWrite(13, HIGH); // turn the LED on (HIGH is the voltage level)

}
digitalWrite(13, LOW); // turn the LED off by making the voltage LOW
}

}

2

For informed help, read and follow the directions in the "How to use this forum" post.

3 
if(digitalRead(7) == HIGH )
{
  if ( digitalRead(7) == LOW )
  {

Chances are slim minimal if you read something (a push-button?) and you read it again a microsecond later that it has changed.

4

int tiempo = 0;``for(int i = 5 ; i <= tiempo
Think hard about that one.