Versuche jetzt nach Tagen sortiert.

Versuchstag-1/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()

Versuchstag-1/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()

Versuchstag-1/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()

Versuchstag-1/aufgabe_e.sh

@@ -0,0 +1,24 @@
+#!/bin/bash
+
+LED_RED="17"
+LED_GREEN="18"
+
+# setup
+echo "Setup red led on pin $LED_RED"
+echo $LED_RED > /sys/class/gpio/export
+echo "out" > /sys/class/gpio/gpio$LED_RED/direction
+
+echo "Setup red led on pin $LED_GREEN"
+echo $LED_GREEN > /sys/class/gpio/export
+echo "out" > /sys/class/gpio/gpio$LED_GREEN/direction
+
+
+while true; do
+	echo "1" > /sys/class/gpio/gpio$LED_RED/value
+	echo "0" > /sys/class/gpio/gpio$LED_GREEN/value
+	sleep 1
+	echo "0" > /sys/class/gpio/gpio$LED_RED/value
+	echo "1" > /sys/class/gpio/gpio$LED_GREEN/value
+	sleep 1
+done
+

Versuchstag-1/aufgabe_f.sh

@@ -0,0 +1,12 @@
+#!/bin/bash
+
+TASTER_PIN="2"
+# setup
+echo "Setup taster on pin $TASTER_PIN"
+echo $TASTER_PIN > /sys/class/gpio/export
+echo "in" > /sys/class/gpio/gpio$TASTER_PIN/direction
+
+while true; do 
+	echo -e "Taster sagt: "
+	cat /sys/class/gpio/gpio$TASTER_PIN/value
+done

Versuchstag-1/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()

Versuchstag-1/servoblaster_ctl.py

@@ -0,0 +1,19 @@
+#!/usr/bin/env python
+import os
+
+def sb_write(fd, servo, pulse):
+    try:
+        os.write(fd, '%d=%d\n' % (servo,pulse))
+    except IOError as e:
+        print e
+
+try:
+    fd = os.open('/dev/servoblaster', os.O_WRONLY)
+except OSError as e:
+    print 'could not open /dev/servoblaster'
+    raise SystemExit(5)
+except (KeyboardInterrupt, SystemExit):
+    os.close(fd)
+    pass
+
+

Versuchstag-1/setup.sh

@@ -0,0 +1,8 @@
+#!/bin/bash
+mkdir -p /home/pi/Group03/Versuch{1,2,3,4,5,6,7,8}
+cp -r /home/pi/src /home/pi/Group03/
+chown -R pi:pi /home/pi/Group03
+
+echo "Aufgabe in:"
+grep -r --color AUFGABE /home/pi/Group03/src
+echo -e "\n\n"