first commit

examples/orangepi-sensors/rotary_encoder.py

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+import sys
+import time
+import wiringpi
+from wiringpi import GPIO
+
+SIA = 9
+SIB= 10
+SW = 6
+
+wiringpi.wiringPiSetup()
+wiringpi.pinMode(SW, GPIO.INPUT)
+wiringpi.pinMode(SIA, GPIO.INPUT)
+wiringpi.pinMode(SIB, GPIO.INPUT)
+
+flag = 0
+resetflag = 0
+globalCount = 0
+
+while True:
+	try:
+		lastSib = wiringpi.digitalRead(SIB)
+		while not wiringpi.digitalRead(SW):
+			resetflag = 1
+		while not wiringpi.digitalRead(SIA):
+			currentSib = wiringpi.digitalRead(SIB)
+			flag =1
+		
+		if resetflag:
+			globalCount = 0
+			resetflag = 0
+			print ('Count reset\ncurrent = 0')
+			continue
+		if flag:
+			if lastSib == 0 and currentSib == 1:
+				print ('Anticlockwise rotation')
+				globalCount += 1
+			if lastSib == 1 and currentSib == 0:
+				print ('clockwise rotation')
+				globalCount -=1
+			
+			flag =0
+			print ('current = %s' % globalCount)
+	except KeyboardInterrupt:
+		print('\nExit')
+		sys.exit(0)
+