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Add debounce to Pi GPIO node

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This commit is contained in:
Dave Conway-Jones
2016-01-25 09:56:35 +00:00
parent 6567739236
commit 72917117a9
4 changed files with 43 additions and 43 deletions
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33
nodes/core/hardware/nrgpio.py
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@@ -1,6 +1,6 @@
#!/usr/bin/python
#
# Copyright 2014 IBM Corp.
# Copyright 2014,2016 IBM Corp.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
@@ -19,8 +19,9 @@ import struct
import sys
import os
import subprocess
from time import sleep
bounce = 20 # bounce time in mS to apply
bouce = 20;
if sys.version_info >= (3,0):
print("Sorry - currently only configured to work with python 2.x")
@@ -95,18 +96,18 @@ if len(sys.argv) > 2:
elif cmd == "in":
#print "Initialised pin "+str(pin)+" to IN"
bounce = int(sys.argv[4])
def handle_callback(chan):
sleep(bounce/1000)
print GPIO.input(chan)
if len(sys.argv) == 4:
if sys.argv[3].lower() == "up":
GPIO.setup(pin,GPIO.IN,GPIO.PUD_UP)
elif sys.argv[3].lower() == "down":
GPIO.setup(pin,GPIO.IN,GPIO.PUD_DOWN)
else:
GPIO.setup(pin,GPIO.IN)
if sys.argv[3].lower() == "up":
GPIO.setup(pin,GPIO.IN,GPIO.PUD_UP)
elif sys.argv[3].lower() == "down":
GPIO.setup(pin,GPIO.IN,GPIO.PUD_DOWN)
else:
GPIO.setup(pin,GPIO.IN)
print GPIO.input(pin)
GPIO.add_event_detect(pin, GPIO.BOTH, callback=handle_callback, bouncetime=bounce)
@@ -169,12 +170,6 @@ if len(sys.argv) > 2:
except:
data = 0
elif cmd == "rev":
print GPIO.RPI_REVISION
elif cmd == "ver":
print GPIO.VERSION
elif cmd == "mouse": # catch mice button events
file = open( "/dev/input/mice", "rb" )
oldbutt = 0
@@ -225,9 +220,11 @@ elif len(sys.argv) > 1:
print GPIO.RPI_REVISION
elif cmd == "ver":
print GPIO.VERSION
elif cmd == "info":
print GPIO.RPI_INFO
else:
print "Bad parameters - in|out|pwm|buzz|byte|borg|mouse|kbd|ver {pin} {value|up|down}"
print " only ver (gpio version) and rev (board revision) accept no pin parameter."
print "Bad parameters - in|out|pwm|buzz|byte|borg|mouse|kbd|ver|info {pin} {value|up|down}"
print " only ver (gpio version) and info (board information) accept no pin parameter."
else:
print "Bad parameters - in|out|pwm|buzz|byte|borg|mouse|kbd|ver {pin} {value|up|down}"
print "Bad parameters - in|out|pwm|buzz|byte|borg|mouse|kbd|ver|info {pin} {value|up|down}"