63 lines
1.5 KiB
Python
63 lines
1.5 KiB
Python
#!/usr/bin/env python2.7
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import time
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import RPi.GPIO as GPIO
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from time import sleep # this lets us have a time delay (see line 12)
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GPIO.setmode(GPIO.BCM) # set up BCM GPIO numbering
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#GPIO.setup(20, GPIO.IN) # set GPIO25 as input (button)
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#GPIO.setup(20, GPIO.IN, pull_up_down = GPIO.PUD_UP)
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class Button:
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'Handle button stuff'
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starttime=0
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ispushed=0
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waspushed=0
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presstime=0
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ignore=0
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def __init__(self, gpio):
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print "initialize button on gpio %d"%gpio
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self.gpio = gpio
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GPIO.setup(self.gpio, GPIO.IN, pull_up_down = GPIO.PUD_UP)
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GPIO.add_event_detect(self.gpio, GPIO.BOTH, callback=self.my_callback)
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self.presstime=0
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self.starttime=0
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self.presstime=0
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self.waslong=0
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def my_callback(self,channel):
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if not GPIO.input(channel): # button is pressed
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# print "[press] on %d"%self.gpio
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self.starttime=time.time()
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self.ispushed=1
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else: # button released
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self.presstime=time.time()-self.starttime
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# print "[release] on %d / <pressed> for=%f sconds"%(self.gpio,self.presstime)
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if self.ispushed:
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self.waspushed=1
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self.ispushed=0
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def WasPressed(self):
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if self.waspushed:
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self.waspushed=0
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return 1
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elif self.ispushed:
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self.presstime=time.time()-self.starttime
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if self.presstime > 2:
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self.ispushed=0
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self.waspushed=1
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self.waslong=1
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else:
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return 0
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def WasLong(self):
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if self.presstime > 2:
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self.waslong=0
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self.ignore=1
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return 1
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else:
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return 0
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