bbb rotary encoder in python

bbb-rotary.txt

https://github.com/guyc/py-gaugette

# pip install wiringpi

http://www.alexanderhiam.com/wp-content/uploads/2013/01/beaglebone_pinout1.png

https://github.com/adafruit/adafruit-beaglebone-io-python/blob/master/source/common.c

root@beaglebone:~/py-gaugette/samples# export PYTHONPATH=$PYTHONPATH:~/py-gaugette

root@beaglebone:~/py-gaugette/samples#  nice -n -10 rtl_fm -f 91.5e6 -M wbfm -r 48000 - | aplay -r 48k -f S16_LE 

root@beaglebone:~/py-gaugette/gaugette# git diff
diff --git a/gaugette/switch.py b/gaugette/switch.py
index f57e3d5..cb61410 100755
--- a/gaugette/switch.py
+++ b/gaugette/switch.py
@@ -1,24 +1,13 @@
-import wiringpi2
+import gaugette.gpio
+
 
 class Switch:
 
-    def __init__(self, pin, pullUp=True):
+    def __init__(self, pin):
         self.pin = pin
-        self.pullUp = pullUp
-        self.gpio = wiringpi2.GPIO(wiringpi2.GPIO.WPI_MODE_PINS)
-        self.gpio.pinMode(self.pin, self.gpio.INPUT)
-        if self.pullUp:
-            self.gpio.pullUpDnControl(self.pin, self.gpio.PUD_UP)
-        else:
-            self.gpio.pullUpDnControl(self.pin, self.gpio.PUD_DOWN)
+        self.gpio = gaugette.gpio.GPIO()
+        self.gpio.setup(self.pin, self.gpio.IN, self.gpio.PUD_UP)
 
     def get_state(self):
         state = self.gpio.digitalRead(self.pin)
-        if self.pullUp:
-            # If we are pulling up and switching
-            # to ground, state will be 1 when the switch is open, and 0
-            # when it is closed.  We invert the value here to a more
-            # conventional representation of 0:open, 1:closed.
-            return 1-state
-        else:
-            return state
+        return 1-state