کد بالا جواب نمیده
برای جواب گرفتن کافیه به صورت نرم افزاری pullup کنیم
کد:
int led = 13 ;//define led pin
int sensor = 10; //sensor pin
int val; //define numeric variable selection
void setup ()
{
pinmode (led, output); // define led as output
pinmode (sensor, input_pullup); // define sensor as input
}
void loop ()
{
val = digitalread (sensor) ;// sensor and put it into election
digitalwrite(led,low);
if (val == low) // when the sensor detects a signal, the led flashes
{
digitalwrite (led, high);
delay(100);
}
}