Endlich alles ins Git.

Versuch 2/aufgabe_a.py

@@ -0,0 +1,35 @@
+#!/usr/bin/env python3
+
+from time import sleep
+try:
+    import RPi.GPIO as GPIO
+except RuntimeError:
+    print("Error importing RPi.GPIO! Run this script as root.")
+    exit(1)
+
+LED_RED = 17
+LED_GREEN = 18
+
+def setup():
+    # Run GPIO with PI pin numbers.
+    GPIO.setmode(GPIO.BCM)
+    # Set outputs fpr led pins
+    GPIO.setup(LED_RED, GPIO.OUT)
+    GPIO.setup(LED_GREEN, GPIO.OUT)
+
+def main():
+    setup()
+    try:
+        while True:
+            GPIO.output(LED_RED, GPIO.HIGH)
+            GPIO.output(LED_GREEn, GPIO.LOW)
+            sleep(1)
+            GPIO.output(LED_RED, GPIO.LOW)
+            GPIO.output(LED_GREEn, GPIO.HIGH)
+            sleep(1)
+    except KeyboardInterrupt:
+        GPIO.cleanup()
+
+
+if __name__ == "__main__":
+    main()

Versuch 2/aufgabe_b.py

@@ -0,0 +1,58 @@
+#!/usr/bin/env python3
+
+from time import sleep
+import threading
+try:
+    import RPi.GPIO as GPIO
+except RuntimeError:
+    print("Error importing RPi.GPIO! Run this script as root.")
+    exit(1)
+
+class LED(Thread):
+
+    def __init__(self, pin, frequency, use_pwm=False):
+        Thread.__init__(self)
+        self.__pin = pin
+        self.__frequency
+        self.__use_pwm = use_pwm
+        self.__pwm = None
+
+        GPIO.setup(pin, GPIO.OUT)
+        if use_pwm:
+            self.__pwm = GPIO.PWM(pin, frequency)
+        
+    def new_random_frequency(self):
+        self.__frequency = random.randint(1, 100)
+        
+    def run(self):
+        try:
+            if self.__use_pwm:
+                self.__pwm.start(0)
+                while True:
+                    for s in range(0, 1, 0.1):
+                        self.__pwm.ChangeDutyCycle(math.sin(s * math.pi))
+                        #sleep(1 / self.__frequency)
+                        sleep(1)
+            else:
+                while True:
+                    GPIO.output(LED_GREEn, GPIO.LOW)
+                    sleep(1 / self.__frequency)
+                    GPIO.output(LED_GREEn, GPIO.HIGH)
+                    sleep(1 / self.__frequency)
+        except KeyboardInterrupt:
+            GPIO.cleanup()
+def setup():
+    # Run GPIO with PI pin numbers.
+    GPIO.setmode(GPIO.BCM)
+
+def main():
+    setup()
+    
+    # Pin, frequency in Hz
+    led_thread = LED(17, 1000)
+    led_thread.run()
+
+
+
+if __name__ == "__main__":
+    main()

Versuch 2/aufgabe_c.py

@@ -0,0 +1,41 @@
+#!/usr/bin/env python3
+
+from time import sleep
+import threading
+
+import aufgabe_b
+
+try:
+    import RPi.GPIO as GPIO
+except RuntimeError:
+    print("Error importing RPi.GPIO! Run this script as root.")
+    exit(1)
+    
+TASTER_PIN = 2
+
+def setup():
+    # Run GPIO with PI pin numbers.
+    GPIO.setmode(GPIO.BCM)
+    GPIO.setup(TASTER_PIN, GPIO.IN)
+
+def main():
+    setup()
+    
+    # Pin, frequency in Hz
+    led_thread1 = LED(17, 1000)
+    led_thread1.run()
+    led_thread2 = LED(18, 1000)
+    led_thread2.run()
+    
+    # read taster
+    try:
+        while True:
+            if GPIO.input(TASTER_PIN) == 1:
+                print("Taster was pressed. Set new frequency.")
+                led_thread1.new_random_frequency()
+                led_thread2.new_random_frequency()
+    except KeyboardInterrupt:
+        GPIO.cleanup()
+
+if __name__ == "__main__":
+    main()

Versuch 2/aufgabe_g.py

@@ -0,0 +1,26 @@
+#!/usr/bin/env python3
+
+from time import sleep
+import threading
+
+import aufgabe_b
+
+try:
+    import RPi.GPIO as GPIO
+except RuntimeError:
+    print("Error importing RPi.GPIO! Run this script as root.")
+    exit(1)
+    
+def setup():
+    # Run GPIO with PI pin numbers.
+    GPIO.setmode(GPIO.BCM)
+
+def main():
+    setup()
+    
+    # Pin, frequency in Hz
+    led_thread1 = LED(17, 1000, use_pwm=True)
+    led_thread1.run()
+
+if __name__ == "__main__":
+    main()