HC-SR501

Judesio daviklis.

Sensitivity reguliatorių patartina atsukti beveik iki max, time delay į minimum. Perjungti jumperį į kitą padėtį nei parodyta pav.

RaspberryPI

Sujungimas

Visi pinai aprašyti čia. Sujungimas:

VVC = PIN 2
OUTPUT = PIN 7
GND = PIN 6

Golang kodas

package main

import (
      . "github.com/cyoung/rpi"
        "fmt"
        "time"
)

func main() {
    WiringPiSetup()
    pin := 7
    go func() {
          last_time := time.Now().UnixNano() / 1000000
          motion_detected := 0
          for pinas := range WiringPiISR(BoardToPin(pin), INT_EDGE_FALLING) {
              if pinas > -1 {
                 n := time.Now().UnixNano() / 1000000
                 delta := n - last_time
                 if delta > 800 { //software debouncing
                        fmt.Printf("Motion detected (Total detected %d times)\n",motion_detected)
                        last_time = n
                        motion_detected++
                 }
               }

          }

    }()

   for {
   // empty cycle
   }

}

Python Kodas

#!/usr/bin/python
import RPi.GPIO as GPIO
import time

GPIO.setmode(GPIO.BCM)

PIR_PIN = 4
CNT = 0

GPIO.setup(PIR_PIN, GPIO.IN)

def MOTION(PIR_PIN):
  print "Motion Detected"

print "PIR Module Test (CTRL+C to exit)"
time.sleep(2)
print "Ready"


try:
        GPIO.add_event_detect(PIR_PIN, GPIO.RISING, callback=MOTION)
        while 1:
                time.sleep(100)
except KeyboardInterrupt:
        print "Quit"
        GPIO.cleanup();

OrangePI

Sujungimas

Visi pinai aprašyti čia. Sujungimas:

VVC = PIN 2
OUTPUT = PIN 11
GND = PIN 6

Kodas

Sujudėjus bandytams, bus įjungta šviesa ir pranešta į telegramą.

#!/usr/bin/python

from pyA20.gpio import gpio
from pyA20.gpio import port
import requests
from time import gmtime, strftime
import time
import os

# initialize GPIO
TG_BOTHSH = ""
TG_CHATID = ""
SENSOR_LOCATION = "Main room"
sensor = port.PA6
gpio.init()
gpio.setcfg(sensor, gpio.INPUT)
print "Sensor initializing..."
time.sleep(2)
print "Active"
print "Press Ctrl+C to abort the program"
previous_state = False
current_state = False
LOW = 1
HIGH = 0
LIGHT_PORT = 20
URL = "https://api.telegram.org/{}/".format(TG_BOTHSH)

def switch_lights(state):
   url = "http://192.168.13.102:1415/turn/{}/{}".format(LIGHT_PORT,state)
   print "Turning lights: ",state
   requests.get(url)

def send_message(text):
    url = URL + "sendMessage?text={}&chat_id={}".format(text, TG_CHATID)
    requests.get(url)

if os.getenv("TZ"):
    os.unsetenv("TZ")

while True:
    previous_state = current_state
    current_state = gpio.input(sensor)
    if current_state != previous_state:
          new_state = "LOW" if current_state else "HIGH"
          print("GPIO pin %s is %s" % (sensor, new_state))
          if current_state == HIGH:
            d1 = strftime("%Y-%m-%d %H:%M:%S", gmtime())
            print d1,"-> Motion detected"
            #turn lights on for 10 seconds
            switch_lights("on")
            time.sleep(10)
            #turn the lights off again
            switch_lights("off")
            send_message("Motion detected on {}".format(SENSOR_LOCATION))