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@dbonino
Last active Aug 29, 2015
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#!/usr/bin/python
'''
Created on Jan 22, 2015
@author: dario bonino
Copyright (c) 2015 Dario Bonino
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License
'''
import serial
import getopt
import sys
from dog import DogGateway
def usage():
print "EnOcean Packet Sniffer"
print "Usage: enOceanSniffer -p port -r baudrate"
def decode_message(message_bytes):
'''
Decodes EnOcean messages, only RPS messages are currently supported
'''
action = -1
if(len(message_bytes) > 0):
lenght = ord(message_bytes[1])
# print ("Data Lenght:%d")%lenght
rorg = message_bytes[6]
# print ("Rorg:%s")%rorg.encode("hex")
if(rorg.encode("hex") == "f6"):
# print "Type: RPS"
data = message_bytes[7]
# print ("Data: %s")%data.encode("hex")
status = message_bytes[12]
# print ("Status: %s")%(status.encode("hex"))
print ("Sender id:"),
for i in range(8,12):
print message_bytes[i].encode("hex"),
print "\n"
senderId = message_bytes[8:12]
status_byte = ord(status)
nu = (status_byte & 0x10) >> 4
t21 = (status_byte & 0x20) >> 5
if(t21 == 1 and nu == 1):
# get the data
action = (ord(data) & 0xE0) >> 5
return action
def main():
# the serial port to attach to
port = ""
# the baudrate to use
rate = 0
# optional
dog_gateway = None
dog_device_uri = None
# parse arguments
try:
opts, args = getopt.getopt(sys.argv[1:], "h:p:r:a:d:", ["help", "port=", "rate=", "address=", "device="])
except getopt.GetoptError as err:
# print help information and exit:
print str(err) # will print something like "option -a not recognized"
usage()
sys.exit(2)
# handle command-line options
for o, a in opts:
# handle help
if o in ("-h", "--help"):
# show usage
usage()
# exit with success code
sys.exit(0)
# handle configuration data
elif o in ("-p", "--port"):
# store the port value
port = a
elif o in ("-r", "--rate"):
# store the rate
rate = a
elif o in ("-a", "--address"):
# store the dog address
dog_gateway = DogGateway(("http://%s/api/v1") % a);
elif o in ("-d", "--device"):
# store the dog device
dog_device_uri = a
# handle not supported options
else:
assert False, "unhandled option"
if((port != "") and (rate > 0)):
# open the serial port
ser = serial.Serial(port, rate)
ser.setStopbits(1)
ser.setByteSize(8)
ser.setParity(serial.PARITY_NONE)
# set the running flag at true
can_run = True
printed = False
message_bytes = []
message_chars = []
# sampling cycle
while can_run:
try:
if(ser.inWaiting() > 0):
# read a line from the serial port
byte = ser.read()
# debug / log print the read line
byte_value = byte.encode('hex')
if(byte_value == "55"):
# print the current message value
print("%s\n---------") % message_bytes
sys.stdout.flush()
# interpret the data
action = decode_message(message_chars)
if (action == 0):
print "Button 1 OFF"
if((dog_gateway != None) and (dog_device_uri != None)):
dog_gateway.sendCommand(dog_device_uri, "off")
elif(action == 1):
print "Button1 ON"
if((dog_gateway != None) and (dog_device_uri != None)):
dog_gateway.sendCommand(dog_device_uri, "on")
elif (action == 2):
print "Button 2 OFF"
elif(action == 3):
print "Button 2 ON"
# reset buffers
message_bytes = []
message_chars = []
# append content to buffers
message_bytes.append(byte_value);
message_chars.append(byte);
else:
# sleep a bit
sleep(.1)
except KeyboardInterrupt:
can_run = False
# debug
print "stopped"
sys.stdout.flush()
except:
pass
if __name__ == '__main__':
# start main
main()
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