import RPi.GPIO as GPIO
import time

in1 = 24
in2 = 23
en = 25
temp1=1
GPIO.setwarnings(False)
GPIO.setmode(GPIO.BCM)
GPIO.setup(in1,GPIO.OUT)
GPIO.setup(in2,GPIO.OUT)
GPIO.setup(en,GPIO.OUT)
GPIO.output(in1,GPIO.LOW)
GPIO.output(in2,GPIO.LOW)
p=GPIO.PWM(en,1000)
p.start(25)
print("\n")
print("Baslangic olarak dusuk hiz ve ileri olarak calisir")
print("r-ileri s-dur f-ileri b-geri l-dusuk m-orta h-hizli e-cikis")
print("\n")

while(1):

    x=input()

    if x=='r':
        print("ileri")
        if(temp1==1):
         GPIO.output(in1,GPIO.HIGH)
         GPIO.output(in2,GPIO.LOW)
         print("forward")
         x='z'
        else:
         GPIO.output(in1,GPIO.LOW)
         GPIO.output(in2,GPIO.HIGH)
         print("backward")
         x='z'


    elif x=='s':
        print("Dur")
        GPIO.output(in1,GPIO.LOW)
        GPIO.output(in2,GPIO.LOW)
        x='z'

    elif x=='f':
        print("ileri")
        GPIO.output(in1,GPIO.HIGH)
        GPIO.output(in2,GPIO.LOW)
        temp1=1
        x='z'

    elif x=='b':
        print("Geri")
        GPIO.output(in1,GPIO.LOW)
        GPIO.output(in2,GPIO.HIGH)
        temp1=0
        x='z'

    elif x=='l':
        print("Dusuk")
        p.ChangeDutyCycle(25)
        x='z'

    elif x=='m':
        print("Orta")
        p.ChangeDutyCycle(50)
        x='z'

    elif x=='h':
        print("Yuksek")
        p.ChangeDutyCycle(75)
        x='z'


    elif x=='e':
        GPIO.cleanup()
        break

    else:
        print("<<<  hatali data  >>>")
        print("normal komutlari yaziniz.....")