def switch_eventA(self, switch):
# look r a low-to-high on channel A
if GPIO.input(self.pinA):
# check pin B to see which was we are turning
if not GPIO.input(self.pinB):
self.encoder0Pos = self.encoder0Pos + 1 #cw
direction = "cw"
else:
self.encoder0Pos = self.encoder0Pos - 1 #ccw
direction = "ccw"
else:
# // must be a high-to-low edge on channel A
if GPIO.input(self.pinB):
self.encoder0Pos = self.encoder0Pos + 1 #cw
direction = "cw"
else:
self.encoder0Pos = self.encoder0Pos - 1 #ccw
direction = "ccw"
print "A", self.encoder0Pos, direction
if not self.busy:
self.busy = True
if self.encoder0Pos < -1:
print "Trigger Counter Clockwise", self.clockwise
if self.clockwise: self.clockwise()
self.encoder0Pos = 0
if self.encoder0Pos > 1:
print "Trigger CLockwise", self.counterclockwise
if self.counterclockwise: self.counterclockwise()
self.encoder0Pos = 0
self.busy = False
else:
print "- skiping roatry event"
def waitForChange(self, pin):
self.input(pin)
startstate = GPIO.input(self.PINS[pin]['pin'])
newstate = startstate
print "Startt State = ", startstate
while newstate == startstate:
newstate = GPIO.input(self.PINS[pin]['pin'])
print newstate
time.sleep(.1)
def input(self, pin):
if not self.PINS.has_key(pin):
sys.stderr.write("pin %s does not exist\n" % (pin))
else:
if not self.PINS[pin]['setup']:
if not self.PINS[pin]['input']:
sys.stderr.write("pin %s set as an output pin\n" % (pin))
else:
if self.PINS[pin]['pup']:
GPIO.setup(self.PINS[pin]['pin'],
1,
pull_up_down=GPIO.PUD_UP)
else:
GPIO.setup(self.PINS[pin]['pin'], 1)
if os.path.exists("ipc/manual_%s" % (pin)):
os.unlink("ipc/manual_%s" % (pin))
print "file existed returning True", pin
return True
state = GPIO.input(self.PINS[pin]['pin'])
# print "RAW STATE",self.PINS[pin]['pin'],state
if self.PINS[pin]['inverse']:
if state == True:
return False
else:
return True
return state
def input(self, pin):
if not self.PINS.has_key(pin):
sys.stderr.write("pin %s does not exist\n" % (pin))
else:
if not self.PINS[pin]['setup']:
if not self.PINS[pin]['input']:
sys.stderr.write("pin %s set as an output pin\n" % (pin))
else:
if self.PINS[pin]['pup']:
GPIO.setup(self.PINS[pin]['pin'],
1,
pull_up_down=GPIO.PUD_UP)
else:
GPIO.setup(self.PINS[pin]['pin'], 1)
state = GPIO.input(self.PINS[pin]['pin'])
if self.PINS[pin]['inverse']:
if state == True:
return False
else:
return True
# self._log("gpio.input %s %s" %(pin,state),importance=1)
return state
def switch_eventB(self, switch):
# look r a low-to-high on channel A
if GPIO.input(self.pinB):
# check pin B to see which was we are turning
if GPIO.input(self.pinA):
self.encoder0Pos = self.encoder0Pos + 1 #cw
direction = "cw"
else:
self.encoder0Pos = self.encoder0Pos - 1 #ccw
direction = "ccw"
else:
# // must be a high-to-l2ow edge on channel A
if not GPIO.input(self.pinA):
self.encoder0Pos = self.encoder0Pos + 1 #cw
direction = "cw"
else:
self.encoder0Pos = self.encoder0Pos - 1 #ccw
direction = "ccw"
print "B", self.encoder0Pos, direction
def switch_event(self, switch):
if GPIO.input(self.pinA):
self.rotary_a = 1
else:
self.rotary_a = 0
if GPIO.input(self.pinB):
self.rotary_b = 1
else:
self.rotary_b = 0
self.rotary_c = self.rotary_a ^ self.rotary_b
new_state = self.rotary_a * 4 + self.rotary_b * 2 + self.rotary_c * 1
delta = (new_state - self.last_state) % 4
self.last_state = new_state
event = 0
if delta == 1:
if self.direction == self.CLOCKWISE:
print "Clockwise"
event = self.direction
else:
self.right = self.right + 1
self.left = 0
self.direction = self.CLOCKWISE
elif delta == 3:
if self.direction == self.ANTICLOCKWISE:
print "Anticlockwise"
event = self.direction
else:
self.left = self.left + 1
self.right = 0
self.direction = self.ANTICLOCKWISE
if delta > 0:
if not self.callback:
print "callback", self.direction, self.left, self.right
if self.left > 0:
print "LEFT"
self.left = 0
if self.right > 0:
print "RIGHT"
self.right = 0
def input(pin):
GPIO.setup(pin, GPIO.IN)
return GPIO.input(pin)