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refined button handler

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This commit is contained in:
Michael Mandl 2016-01-07 15:59:21 +01:00
parent 34e18d2748
commit 0e8bc288b8
1 changed files with 16 additions and 17 deletions
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33
Moped/moped.py
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@ -10,10 +10,18 @@ greenLed = 18
buttonPin = 27 buttonPin = 27
sleepTime = 0.25 sleepTimes = [1, 0.5, 0.25, 0.125]
sleepTimeIndex = 0
def buttonHandler(channel): def buttonHandler(channel):
global sleepTimeIndex
print 'button pushed' print 'button pushed'
sleepTimeIndex = (sleepTimeIndex + 1) % len(sleepTimes)
def setLeds(yellow, red, green):
GPIO.output(yellowLed, yellow)
GPIO.output(redLed, red)
GPIO.output(greenLed, green)
try: try:
GPIO.setmode(GPIO.BCM) GPIO.setmode(GPIO.BCM)
@ -26,21 +34,12 @@ try:
GPIO.add_event_detect(buttonPin, GPIO.FALLING, callback=buttonHandler, bouncetime=1000) GPIO.add_event_detect(buttonPin, GPIO.FALLING, callback=buttonHandler, bouncetime=1000)
while True: while True:
GPIO.output(yellowLed, 1) setLeds(1, 0, 0)
GPIO.output(redLed, 0) sleep(sleepTimes[sleepTimeIndex])
GPIO.output(greenLed, 0) setLeds(0, 1, 0)
sleep(sleepTime) sleep(sleepTimes[sleepTimeIndex])
GPIO.output(yellowLed, 0) setLeds(0, 0, 1)
GPIO.output(redLed, 1) sleep(sleepTimes[sleepTimeIndex])
GPIO.output(greenLed, 0)
sleep(sleepTime)
GPIO.output(yellowLed, 0)
GPIO.output(redLed, 0)
GPIO.output(greenLed, 1)
sleep(sleepTime)
except KeyboardInterrupt:
GPIO.output(yellowLed, 0)
GPIO.output(redLed, 0)
GPIO.output(greenLed, 0)
finally: finally:
setLeds(0, 0, 0)
GPIO.cleanup() GPIO.cleanup()