Posts: 124
Joined: Mon Apr 29, 2019 1:53 am

First attempt at combining two programs

Sat May 18, 2019 1:10 am

I have two programs that run just fine by themselves. One program monitors two different pins for ground inputs. If the pins get a ground, they do a and my phone gets a message. These are from door switches. The other program is a single PIR sensor that watches for movement, that movement detection also does a

Instead of running them separately, I want to combine them. I got this much running but want to know if there are any necessary "cleanups" that should be done.

Code: Select all

import requests
import RPi.GPIO as GPIO
import time

r ="")  # Door monitor notification
r ="")  # Motion monitor notification

buttonRDPin = 15  # This pin is not connected, just a placeholder
buttonRUPin = 16

buttonLDPin = 38 # This pin is not connected, just a placeholder
buttonLUPin = 40

GPIO.setup(buttonRUPin, GPIO.IN, pull_up_down=GPIO.PUD_UP)
GPIO.setup(buttonRDPin, GPIO.IN, pull_up_down=GPIO.PUD_UP)  # Again, just a placeholder

GPIO.setup(buttonLUPin, GPIO.IN, pull_up_down=GPIO.PUD_UP)
GPIO.setup(buttonLDPin, GPIO.IN, pull_up_down=GPIO.PUD_UP)  # Again, just a placeholder

ledONPin = 32  # Light on breadboard advising of service started
GPIO.setup(ledONPin, GPIO.OUT)
GPIO.output(ledONPin, GPIO.HIGH)
GPIO.setup(7, GPIO.IN)  # PIR input

llogic = 1  # These don't seem to do anything.
rlogic = 1  # Not gonna delete them because this all works.
while True:
    buttonState = GPIO.input(buttonRUPin)
    if buttonState == False:
        if rlogic == 0:
            r ="")
            rlogic = 1
        if rlogic == 1:
            r ="")
            rlogic = 0
    buttonState = GPIO.input(buttonLUPin)
    if buttonState == False:
        if llogic == 0:
            r ="")
            llogic = 1
        if llogic == 1:
            r ="")
            llogic = 0

    if GPIO.input(7):
        r ="")  # Motion detected

You can see the last "if GPIO.input(7)" stuff is just the PIR dropped on the end. I moved all the pin assignments to the top. Once I did that It all started working and I haven't done anything since.

What I get now is two notifications on my phone, letting me know that garage doors and motion are being monitored. I may consolidate that down to one notification (this is done by Tasker in my phone). I also get notifications when either garage door is opened or closed, or if there is motion in the garage. This is the function that I want.

I expect to be adding at least 4 more PIR sensors and 3 more door switches to this, so any advice on where or how they should be added would be appreciated. The only GPIOs I am really using now are 32, 40, 16, and 7 (board numbering).
You can't know your limits until you exceed them.

Posts: 9780
Joined: Fri May 31, 2013 9:28 pm
Location: Mansfield UK

Re: First attempt at combining two programs

Sat May 18, 2019 10:46 am

The code looks fine to me ,

To explain why you need the 2 logic = 1 lines, if they were not there the first time the code runs you would get an error because they will no have been set, because they are not set/re-set until after the if or else statements execute, so you would be trying to check them before they were set.

Hope that makes sense.
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