first simple servo tilt driving.

Signed-off-by: Georgios Gerontakis <giwrgosgprog@gmail.com>

camera module/main.py

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+import servo
+
+servo.SetAngleUp(180)
+servo.SetAngleDown(180)

camera module/servo.py

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+import RPi.GPIO as GPIO #import GPIO Module
+from time import sleep #sleep command
+
+def SetAngleUp(angle):
+    GPIO.setmode(GPIO.BOARD) #pins naming
+    GPIO.setup(03, GPIO.OUT) #PWM signal output (GPIO2)
+    pwm=GPIO.PWM(03, 50) #50Hz PWM on pin
+    pwm.start(0) # start with 0 duty ccle (sets no angles on startup)
+	duty = angle / 18 + 2 
+	GPIO.output(03, True)
+	pwm.ChangeDutyCycle(duty)
+	sleep(1)
+	GPIO.output(03, False)
+	pwm.ChangeDutyCycle(0)
+    pwm.stop()
+    GPIO.cleanup()
+
+def SetAngleDown(angle):
+    GPIO.setmode(GPIO.BOARD) #pins naming
+    GPIO.setup(05, GPIO.OUT) #PWM signal output (GPIO3)
+    pwm=GPIO.PWM(05, 50) #50Hz PWM on pin
+    pwm.start(0) # start with 0 duty ccle (sets no angles on startup)
+	duty = angle / 18 + 2 
+	GPIO.output(05, True)
+	pwm.ChangeDutyCycle(duty)
+	sleep(1)
+	GPIO.output(05, False)
+	pwm.ChangeDutyCycle(0)
+    pwm.stop()
+    GPIO.cleanup()
+
+
+SetAngleDown(100)
+SetAngleUp(100)