#Test_RPi5GPIO_I.py
#By: D@CC on 2024AJan21
#Purpose: Control GPIO pins using RPi.GPIO code on a RPi 5B
#Source 1: https://ephotocaption.com/a/213/213.html

#Issue: 1 2024AJan19 buffer any GPIO.HIGH using GPIO.unity()
#                    buffer any GPIO.LOW  using GPIO.unity()
import time
#import unity

#import RPi.GPIO as GPIO    #Deprecated  #                 v
import  RPi5GPIO as GPIO                 #  ->   import RPi5GPIO as GPIO          
GPIO.setmode(GPIO.BCM)      #Initialize  #                 ^
RPiLibrary="RPi5GPIO"
def unity(func):
    #by D@CC on 2024AJan18
    #Purpose: return "constants" such as GPIO.BCM, GPIO.HIGH etc
    #strReturn=func()
    try:
        strReturn=func()
    except:
        strReturn=True
    finally:
        pass
    #try end
    if strReturn=="GPIO.HIGH": strReturn=func(parm=True)
    if strReturn=="GPIO.LOW" : strReturn=func(parm=False)
    return strReturn
#/unity.py

def ctrl_LED_using_Button(Lout,PBin):
    #Purpose: function that uses PBin to control Lout
    #By: D@CC on 2024AJan18
    # Issue 1 invoke GPIO.HIGH through GPIO.unity() etc
    #if GPIO.input(PBin)== GPIO.HIGH:  #original code
    #if  GPIO.input(PBin)== GPIO.unity(GPIO.HIGH):
    #if  GPIO.input(PBin)== unity(GPIO.HIGH):
    #if  GPIO.input(PBin)== unity(GPIO.LOW):  #works with RPi5GPIO
    #if  GPIO.input(PBin)== GPIO.LOW:          #works with RPi.GPIO
    RPiLibrary="RPi5GPIO"
    if  GPIO.input(PBin)== unity(GPIO.HIGH):          #works with RPi.GPIO
        GPIO.output(Lout,False)  #on
    else :
        GPIO.output(Lout,True)   #off
    #if end
#def end
        
#        12
LEDblink=12                 # This led will blink every .5 seconds
#        18         21      # on Cytron Maker pHAT,beeper is LEDout=26
LEDout = 18 ; PINin=21                   #use PINin to control LEDout
GPIO.setup(PINin, GPIO.IN)               #    monitored every second
GPIO.setup(LEDout,GPIO.OUT)

progName="Test_RPi5GPIO_I.py"
print("(even on a RPi 5B) progName:",progName)
print("  using import RPi5GPIO instead of import RPi.GPIO")
print("Ignore RuntimeWarning: This channel is already in use.")
print("LED is blinking on GPIO",LEDblink)
print("LED on GPIO",LEDout)
print("  will turn ON when pressing Button on GPIO",PINin)
print("Hit ^C to exit")

GPIO.setup(LEDblink,GPIO.OUT)

while True:  #blinks a LED at .5 sec intervals
    GPIO.output(LEDblink,True)  #turn LED on
    time.sleep(.5)
    GPIO.output(LEDblink,False) #turn LED off
    time.sleep(.5)
    ctrl_LED_using_Button(LEDout,PINin)  #use PINin to control LEDout
#/Test_RPi5GPIO_I.py  saved as .txt