servoKeyboard.py

import time
import RPi.GPIO as GPIO
servo = 18

GPIO.setmode(GPIO.BCM)

GPIO.setup(servo,GPIO.OUT)

p = GPIO.PWM(servo, 50)

p.start(7.5)



try:
        
	def getch():
                fd = sys.stdin.fileno()
                old_settings = termios.tcgetattr(fd)
                try:
                    tty.setraw(sys.stdin.fileno())
                    ch = sys.stdin.read(1)
                finally:
                    termios.tcsetattr(fd, termios.TCSADRAIN, old_settings)
                    return ch
	while True: 
		#for  duty_cycle in range(3, 15, 1):
		#	p.ChangeDutyCycle(duty_cycle)
		#	time.sleep(0.1)
		#for duty_cycle in range(15, 3, -1):
		#	p.ChangeDutyCycle(duty_cycle)
		#	time.sleep(0.1)
		
		char = getch()
		
		
		#for degreeChange in range (10, 180, 10):
                #    duty_cycle = degreeChange/12
                #    p.ChangeDutyCycle(duty_cycle)
                #    time.sleep(0.2)
                    
                #    print(duty_cycle)

except KeyboardInterrupt:
	GPIO.cleanup()