mainOriginal.py

##Title: Panic Button Main
##Author: Bodie Collins
##Date: 10-26-22
##Function: To create a functional panic button for UH's SCADA Lab

import RPi.GPIO as GPIO  # import Raspberry PI Library
import time  # import sleep function for LED blinking
import os

button = 10                                     # Set variable for button pin
led1 = 13                                       # Set variable for led 1 pin
led2 = 15                                       # Set variable for led 2 pin
apiOut = 29                                     # Set variable for api panic status
Status = False                                  # Set variable for status of panic button
buttonStatus = False
oldflash = time.time()
out = True

GPIO.setwarnings(False)                         # Ignore Warnings
GPIO.setmode(GPIO.BOARD)                        # use physical pin numbering
GPIO.setup(led1, GPIO.OUT, initial=GPIO.LOW)    # Setting pin 13 as an output for led initialize it off
GPIO.setup(led2, GPIO.OUT, initial=GPIO.LOW)    # Setting pin 15 as an output for led2 initialize it off
GPIO.setup(button, GPIO.IN)                     # Setting pin 10 as an input from button
GPIO.setup(apiOut, GPIO.OUT, initial=GPIO.LOW)  # Setting pin 29 as output fro api panic status

if __name__ == "__mainOriginal__":
    try:
        while True:  # Runs forever

            old_button_status = buttonStatus
            buttonStatus = GPIO.input(button)

            if not buttonStatus:
                # Don't want to change the output when button goes from 1->0
                if buttonStatus != old_button_status:
                    # runs when button goes from 0->1
                    Status = not Status
                    GPIO.output(apiOut, Status)

            if not Status:
                GPIO.output(led1, 0)
                GPIO.output(led2, 0)
            elif Status:
                flash = time.time()
                # flash Leds
                if flash - oldflash > .5:
                    out = not out
                    oldflash = time.time()
                    GPIO.output(led2, out)
                    GPIO.output(led1, not out)
    finally:
        GPIO.cleanup()