IRModuleExample.py

#!/usr/bin/env python3
"""IRModuleExample1, program to practice using the IRModule

Created Apr 30, 2018"""

"""
Copyright 2018 Owain Martin

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.
"""

import RPi.GPIO as GPIO
import IRModule
import time

def remote_callback(code):        

    # Codes listed below are for the
    # Sparkfun 9 button remote

    if code == 0x10EFD827:
        print("Power")
    elif code == 0x10EFF807:
        print('A')
    elif code == 0x10EF7887:
        print('B')
    elif code == 0x10EF58A7:
        print('C')
    elif code == 0x10EFA05F:
        print('Up Arrow')
    elif code == 0x10EF00FF:
        print('Down Arrow')
    elif code == 0x10EF10EF:
        print('Left Arrow')
    elif code == 0x10EF807F:
        print('Right Arrow')
    elif code == 0x10EF20DF:
        print('Select')
    else:
        print('.')  # unknown code

    return

# set up IR pi pin and IR remote object
irPin = 16
ir = IRModule.IRRemote(callback='DECODE')
# using 'DECODE' option for callback will print out
# the IR code received in hexadecimal
# this can used to get the codes for whichever NEC
# compatable remote you are using

# set up GPIO options and set callback function required
# by the IR remote module (ir.pWidth)        
GPIO.setwarnings(False)
GPIO.setmode(GPIO.BCM)      # uses numbering outside circles
GPIO.setup(irPin,GPIO.IN)   # set irPin to input
GPIO.add_event_detect(irPin,GPIO.BOTH,callback=ir.pWidth)

ir.set_verbose() # verbose option prints outs high and low width durations (ms)
print('Starting IR remote sensing using DECODE function and verbose setting equal True ')
print('Use ctrl-c to exit program')

try:    
    time.sleep(5)

    # turn off verbose option and change callback function
    # to the function created above - remote_callback()
    print('Turning off verbose setting and setting up callback')
    ir.set_verbose(False)
    ir.set_callback(remote_callback)

    # This is where you could do other stuff
    # Blink a light, turn a motor, run a webserver
    # count sheep or mine bitcoin
    
    while True:
        time.sleep(1)

except:
    print('Removing callback and cleaning up GPIO')
    ir.remove_callback()
    GPIO.cleanup(irPin)