sensor Pir

good afternoon,

have here pir sensor detects movement when wire has 4.80ve not detect when thread 0.06v.
it turns out wanted arduino sleep, , when detects movement arduino wakes up.

throughout project have keypad wake arduino. can not sensor wake arduino.

my test code

quote

#include <avr/sleep.h>
#include <virtualwire.h> // lib para rf~

void setup()
{
    pinmode(13, output);   
pinmode(2, input);
digitalwrite(2, high);
vw_set_tx_pin(3); // porta que vamos usar
vw_setup(2000); // bits para comunicação
}

void loop(){
digitalwrite(13, high); 
delay(3000);
  entersleep();
}

void pin2interrupt(){

}

void entersleep()
{
  digitalwrite(13, low);
  attachinterrupt(0, pin2interrupt, low);
  delay(50);
  set_sleep_mode(sleep_mode_pwr_down); 
  sleep_enable();                 
  adcsra &= ~(1 << aden);
sleep_mode();   
detachinterrupt(0);
sleep_disable();
}

code: [select]

  attachinterrupt(0, pin2interrupt, low);
not wake sleep. need study various options interrupt trigger, , choose appropriate one. low correct choice.

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