first commit

examples/ladder-board.py

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+import wiringpi
+INPUT = 0
+OUTPUT = 1
+LOW = 0
+HIGH = 1
+BUTTONS = [13,12,10,11]
+LEDS = [0,1,2,3,4,5,6,7,8,9]
+PUD_UP = 2
+
+wiringpi.wiringPiSetup()
+
+for button in BUTTONS:
+	wiringpi.pinMode(button,INPUT)
+	wiringpi.pullUpDnControl(button,PUD_UP)
+
+for led in LEDS:
+	wiringpi.pinMode(led,OUTPUT)
+
+while 1:
+	for index,button in enumerate(BUTTONS):
+		button_state = wiringpi.digitalRead(button)
+		first_led = LEDS[index*2]
+		second_led = LEDS[(index*2)+1]
+		#print str(button) + ' ' + str(button_state)
+		wiringpi.digitalWrite(first_led,1-button_state)
+		wiringpi.digitalWrite(second_led,1-button_state)
+	wiringpi.delay(20)