def read_vars():
"""Send read request message to remote device and wait for response, then update values"""
global sent_messages
serial_port = serial.Serial(PORT, BAUD_RATE)
xbee = DigiMesh(serial_port, escaped=True) # , callback=message_received
# Send read request message
# TODO: Broadcast?
for device in Device.objects.filter(active=True):
if sent_messages:
sent_messages.sort()
message_id = sent_messages[-1] + 1
else:
message_id = 1
logger.info('Sending message to device %s', device.slug)
msg_request = struct.pack('HB', message_id, READ_REQUEST)
try:
xbee.tx(dest_addr=bytearray.fromhex(device.address), data=msg_request)
except ValueError as e:
logger.error("Message not sent to device %s", device.slug, exc_info=1)
else:
# Add message id to queue
sent_messages.append(message_id)
while sent_messages:
# TODO: Why using callback function not working
packet = xbee.wait_read_frame()
message_received(packet)
break # TODO: Implement something to clean sent_messages queue and remove this break
serial_port.close()
import time
from xbee import DigiMesh
import serial
#PORT = 'COM7'
PORT = '/dev/cu.usbserial-A9CNVHXX'
BAUD_RATE = 9600
# Open serial port
ser = serial.Serial(PORT, BAUD_RATE)
# Create API object
xbee = DigiMesh(ser, escaped=True)
import pprint
pprint.pprint(xbee.api_commands)
# xbee with long address
XBEE2_ADDR_LONG = "\x00\x00\x00\x00\x00\x00\xFF\xFF"
while True:
try:
print "send data"
xbee.tx(frame='0x1', dest_addr=XBEE2_ADDR_LONG, data='Hello XBee 2')
time.sleep(1)
except KeyboardInterrupt:
break
xbee.halt()
ser.close()
class CommNode:
def __init__(self, location):
self.serial_port = '/dev/ttyUSB1'
self.baud_rate = 57600
self.broadcast_addr = b'\x00\x00\x00\x00\x00\x00\xff\xff'
self.ser = serial.Serial(self.serial_port, self.baud_rate)
time.sleep(1)
try:
self.xbee_device = DigiMesh(self.ser, callback=self.xbeeCallback)
except:
rospy.logwarn("!!!! ERROR - DigiMesh OBJECT NOT INITIALIZED !!!!")
if location == 'AGENT':
# Comm node onboard agent
rospy.loginfo(" ::: NODE INITIALIZED AS AGENT COMM NODE ::: ")
rospy.Subscriber("AgentInformation", AgentInfo, self.agentCallback)
self.pubTasks = rospy.Publisher("AgentTasks",
TaskMessage,
queue_size=10)
self.pubInit = rospy.Publisher("AgentInit",
InitMessage,
queue_size=10)
elif location == 'GND':
# Comm node on ground station
rospy.loginfo(" ::: NODE INITIALIZED AS GCS COMM NODE ::: ")
rospy.Subscriber("TaskActions", TaskMessage, self.tasksCallback)
rospy.Subscriber("InitInformation", InitMessage, self.initCallback)
self.pubEnemy = rospy.Publisher("EnemyInfo",
EnemyInfo,
queue_size=10)
self.pubAgent = rospy.Publisher("AgentInfo",
AgentInfo,
queue_size=10)
else:
rospy.logwarn(
"!!!! ERROR - COMM NODE TYPE NOT RECOGNISED - %s !!!!",
location)
self.fConv = FrameConvertor()
''' Python implementation of switch statement to publish to ROS topics '''
# These functions are shared for all comm nodes, only the relevant ones will be used
def xbeeCallback(self, data):
'''def pubInitMsg(self,msg):
self.pubInit(msg)
def pubTaskMsg(self,msg):
self.pubTasks(msg)
def pubAgentMsg(self,msg):
# convert frame
self.pubAgent(msg)
def pubEnemyMsg(self,msg):
# convert frame
self.pubEnemy(msg)
'''
def StringToROSTaskMsg(string):
msg = TaskMessage()
msgStr = string.split('|') # Split string into array of strings
msg.agentId = int(msgStr[1])
msg.taskId = int(msgStr[2])
msg.targetId = int(msgStr[3])
msg.taskLocation[0] = float(msgStr[4])
msg.taskLocation[1] = float(msgStr[5])
msg.taskLocation[2] = float(msgStr[6])
msg.taskDeadline = float(msgStr[7])
msg.timestamp = float(msgStr[8])
return msg
def StringToROSInitMsg(string):
msg = InitMessage()
msgStr = string.split('|')
msg.agentId = int(msgStr[1])
msg.homeLocation[0] = float(msgStr[2])
msg.homeLocation[1] = float(msgStr[3])
msg.homeLocation[2] = float(msgStr[4])
msg.nominalHeading = float(msgStr[5])
return msg
def StringToROSAgentMsg(string):
msg = AgentInfo()
msgStr = string.split('|')
msg.agentId = int(msgStr[1])
msg.agentPosition[0] = float(msgStr[2])
msg.agentPosition[1] = float(msgStr[3])
msg.agentPosition[2] = float(msgStr[4])
msg.agentHeading = float(msgStr[5])
msg.agentBattery = float(msgStr[6])
if msgStr[7] == 'False':
msg.agentPayload = False
elif msgStr[7] == 'True':
msg.agentPayload = True
if msgStr[8] == 'False':
msg.agentTaskStatus = False
elif msgStr[8] == 'True':
msg.agentTaskStatus = True
msg.agentTaskId = int(msgStr[9])
if msgStr[10] == 'False':
msg.agentWorkingStatus = False
elif msgStr[10] == 'True':
msg.agentWorkingStatus = True
msg.taskDeadline = float(msgStr[11])
return msg
def StringToROSEnemyMsg(string):
msg = EnemyInfo()
msgStr = string.split('|')
msg.agentId = int(msgStr[1])
msg.confidence = float(msgStr[2])
msg.agentPosition[0] = float(msgStr[3])
msg.agentPosition[1] = float(msgStr[4])
msg.agentPosition[2] = float(msgStr[5])
return msg
def StringDefault(string):
rospy.loginfo("Received message type not known: %s", string[0])
string = data.get('data')
#def stringToMsg(string,msg_orig):
str_type = string[0]
rospy.loginfo(" :: RECEIVED MESSAGE TYPE - %s ::", str_type)
switcher1 = {
"T": StringToROSTaskMsg,
"I": StringToROSInitMsg,
"A": StringToROSAgentMsg,
"E": StringToROSEnemyMsg,
}
# See comment at top to module for string formats
func = switcher1.get(str_type, lambda: StringDefault(string))
# return str_type, func(string)
#msg_type, msg = stringToMsg(data.get('data'))
msg_type = str_type
msg = func(string)
#msg_orig = None
#stringToMsg(data.get('data'))
#print msg_type
#print msg_orig
rospy.loginfo(" :: RECEIVING STRING - %s ::", msg_type)
#print 'cucu1'
#print msg
if msg_type == 'A':
print 'pub agents'
self.pubAgent.publish(msg)
elif msg_type == 'E':
print 'pub enemy'
self.pubEnemy.publish(msg)
elif msg_type == 'I':
print 'pub init'
self.pubInit.publish(msg)
elif msg_type == 'T':
print 'pub tasks'
self.pubTasks.publish(msg)
else:
rospy.loginfo(" : IGNORING MESSAGE :")
'''
def pubInitMsg(self,msg):
self.pubInit.publish(msg)
def pubTaskMsg(self,msg):
self.pubTasks.publish(msg)
def pubAgentMsg(self,msg):
# convert frame
self.pubAgent.publish(msg)
def pubEnemyMsg(self,msg):
# convert frame
self.pubEnemy.publish(msg)
switcher = {
"T": pubTaskMsg,
"I": pubInitMsg,
"A": pubAgentMsg,
"E": pubEnemyMsg,
}
print 'cucu'
if msg_type not in switcher:
print " : IGNORING MESSAGE :"
else:
print "hell2"
func = switcher.get(msg_type)
#print msg
func(msg)
print msg'''
def txString(self, str_msg):
rospy.loginfo(" :: TRANSMITTING STRING ::")
bin_str = stringToBinary(str_msg)
try:
self.xbee_device.tx(frame_id=b'\x10',
dest_addr=self.broadcast_addr,
data=bin_str)
except:
rospy.logwarn("!!!! ERROR - FAILURE TO TRANSMIT STRING !!!!")
''' Agent Comm functions '''
def agentCallback(self, data):
rospy.loginfo("Recevived agent msg")
str_msg = msgToString(data)
self.txString(str_msg)
''' GCS Comm functions '''
def initCallback(self, data):
''' Local -> World Frame'''
rospy.loginfo(" :: SENDING INITIALIZATION MESSAGE :: ")
initInfo = data
worldPos, worldHead = self.fConv.localToWorldFrame(
data.homeLocation, data.nominalHeading)
initInfo.homeLocation = worldPos
initInfo.nominalHeading = worldHead
# EDIT: send through xbee instead of publishing
str_msg = msgToString(initInfo)
self.txString(str_msg)
#self.pubInit.publish(initInfo)
def tasksCallback(self, data):
''' Local -> World Frame '''
rospy.loginfo(" :: SENDING TASK MESSAGE :: ")
taskInfo = data
worldPos, worldHead = self.fConv.localToWorldFrame(
data.taskLocation, 0)
taskInfo.taskLocation = worldPos
# EDIT: send through xbee instead of publishing
str_msg = msgToString(taskInfo)
self.txString(str_msg)
#self.pubTasks.publish(taskInfo)
def enemyCallback(self, data):
#str_msg = msgToString(data)
#self.txString(str_msg)
self.pubEnemy.publish(enemyInfo)
#######################################################################
## Scrip Start
#######################################################################
xbee = ZigBee(ser=ser, escaped=True, callback=persist_data)
digi = DigiMesh(ser=ser)
url = baseurl + '/field_device'
all_devices = requests.get(url, headers=headers).json()['objects']
while True:
try:
for device in all_devices:
address = device['serial_id']
print("{0} - Requesting data from {1}".format(
datetime.datetime.now(), address))
digi.tx(frame_id=b'\x01',
dest_addr=bytes.fromhex(address),
data=b'D')
## digi.tx(frame_id = b'\x01', dest_addr=address.decode('hex'), data=b'D')
## Request new data every five minutes.
time.sleep(5 * 60)
except KeyboardInterrupt:
break
# http://Tqbfj07ld
xbee.halt()
ser.close()
})
wf.seek(0, 0)
fileReader = csv.DictReader(wf, fieldnames=fieldnames)
mtuBreaker = 0
for row in fileReader:
fileText = fileText + row['Test'] + ':' + row['Car'] + ' '
#fileArray.append(row['Test'] + ':' + row['Car'])
mtuBreaker += 1
#Split into multiple packets if the file is longer than the mtu of 42
if mtuBreaker == 5:
byteVar = bytearray()
byteVar.extend(map(ord, fileText))
xbee.tx(id=b'\x10',
frame_id=b'\x01',
dest_addr=b'\x00\x00\x00\x00\x00\x00\xFF\xFF',
options=b'\x00',
data=byteVar)
mtuBreaker = 0
fileText = '1 '
#if a packet of five was not completed, send the remaining
if mtuBreaker != 0:
byteVar = bytearray()
byteVar.extend(map(ord, fileText))
xbee.tx(id=b'\x10',
frame_id=b'\x01',
dest_addr=b'\x00\x00\x00\x00\x00\x00\xFF\xFF',
options=b'\x00',
data=byteVar)
#print(fileArray)
import array
ser = serial.Serial('/dev/ttyUSB0', 9600)
c=0
# Use an XBee 802.15.4 device
xbee = DigiMesh(ser)
with open('addresses.csv', 'r') as f:
reader = csv.DictReader(f, dialect='excel-tab')
for row in reader:
if row['Car'] == '10':
print(row['Car'], row['Address'])
c=unhexlify(row['Address'])
#xbee.tx_long_addr(dest_addr=b'\x13\xA2\x00\x41\x54\x53\xBC\xFE')
a=b'\x10'
b=b'\x01'
#c=b'\x00\x13\xA2\x00\x41\x54\x53\xD0'
c=b'\x00\x00\x00\x00\x00\x00\xFF\xFF'
d=b'\x00'
t1='15'
t2='03'
t3='33:33:33'
tt= '0:' + t1 + ',' + t2 + ',' + t3
e= bytearray()
e.extend(map(ord, tt))
print(c)
xbee.tx(id=b'\x10', frame_id=b, dest_addr=c, radius=b'\x01', options=d, data=e)
#response = xbee.wait_read_frame()
#print(chr(response['status']))
#if response != '\x00':
# print('error')