HC-SR501 PIR Infrared Motion Sensor

Projects Programming
8

i don't know have code to make it fade up

Over what period of time?

for(int i=0; i<255; i++)
{
   analogWrite(somePin, i);
   delay(someTime);
}

The value in someTime will be 1/255 of the total time you want to take to fade up to full brightness.

and stay on for a long time like about 10 minutes.

delay(600000UL);

and then fade it back down to low light level.

for(int i=155; i>100; i--) // Fade to dim
{
    analogWrite(somePin, i);
   delay(someTime);
}
delay(180000UL); // Hold for 3 minutes
digitalWrite(somePin, LOW); // Then turn off