def build (sender, destination, sensor, command, typ, enableAck):
msg = MyMessage()
msg.sender = sender
msg.destination = destination
msg.sensor = sensor
msg.type = typ
mSetCommand(msg,command)
mSetRequestAck(msg,enableAck)
mSetAck(msg,False)
return msg
def process(self):
# hw_watchdogReset()
available,to = self.radio.available()
if not available:
return False
msg = MyMessage()
self.msg = msg
data = self.radio.receive()
msg.raw = data
# Add string termination, good if we later would want to print it.
#msg.data[mGetLength(msg)] = '\0'
debug("read: %s-%s-%s sensor=%s,command=%s,type=%s,payloadtype=%s,length=%s,sg=%s:%s\n"%(
msg.sender, msg.last, msg.destination, msg.sensor, mGetCommand(msg), msg.type, mGetPayloadType(msg), mGetLength(msg), mGetSigned(msg), msg.getString()))
mSetSigned(msg,0) # Clear the sign-flag now as verification (and debug printing) is completed
if mGetVersion(msg) != PROTOCOL_VERSION:
debug("version mismatch")
return False
command = mGetCommand(msg)
typ = msg.type
sender = msg.sender
last = msg.last
destination = msg.destination
if destination == self.nc.nodeId:
# This message is addressed to this node
if (self.repeaterMode and last != self.nc.parentNodeId):
# Message is from one of the child nodes. Add it to routing table.
hw_writeConfig(EEPROM_ROUTES_ADDRESS+sender, last)
# Check if sender requests an ack back.
if (mGetRequestAck(msg)):
# Copy message
tmpMsg = msg
mSetRequestAck(tmpMsg,False) # Reply without ack flag (otherwise we would end up in an eternal loop)
mSetAck(tmpMsg,True)
tmpMsg.sender = self.nc.nodeId
tmpMsg.destination = msg.sender
self.sendRoute(tmpMsg)
if (command == Command.C_INTERNAL):
if (typ == Internal.I_FIND_PARENT_RESPONSE):
if (self.autoFindParent):
# We've received a reply to a FIND_PARENT message. Check if the distance is
# shorter than we already have.
distance = msg.getByte()
if (isValidDistance(distance)):
# Distance to gateway is one more for us w.r.t. parent
distance+=1
if (isValidDistance(distance) and (distance < self.nc.distance)):
# Found a neighbor closer to GW than previously found
self.nc.distance = distance
self.nc.parentNodeId = msg.sender
hw_writeConfig(EEPROM_PARENT_NODE_ID_ADDRESS, self.nc.parentNodeId)
hw_writeConfig(EEPROM_DISTANCE_ADDRESS, self.nc.distance)
debug(PSTR("parent=%d, d=%d\n"), self.nc.parentNodeId, self.nc.distance)
return False
elif (sender == GATEWAY_ADDRESS):
if (typ == Internal.I_REBOOT):
# Requires MySensors or other bootloader with watchdogs enabled
hw_reboot()
elif (typ == Internal.I_ID_RESPONSE):
if (self.nc.nodeId == AUTO):
self.nc.nodeId = msg.getByte()
if (self.nc.nodeId == AUTO):
# sensor net gateway will return max id if all sensor id are taken
debug(PSTR("full\n"))
raise(Exception('full'))
# while (1) # Wait here. Nothing else we can do...
self.setupNode()
# Write id to EEPROM
hw_writeConfig(EEPROM_NODE_ID_ADDRESS, self.nc.nodeId)
debug(PSTR("id=%d\n"), self.nc.nodeId)
elif (typ == Internal.I_CONFIG):
# Pick up configuration from controller (currently only metric/imperial)
# and store it in eeprom if changed
isMetric = msg.getString()[0] == 'M'
self.cc.isMetric = isMetric
hw_writeConfig(EEPROM_CONTROLLER_CONFIG_ADDRESS, isMetric)
elif (typ == Internal.I_CHILDREN):
if (self.repeaterMode and msg.getString()[0] == 'C'):
# Clears child relay data for this node
debug(PSTR("clear\n"))
# i = 255
for i in range(255,0,-1):
hw_writeConfig(EEPROM_ROUTES_ADDRESS+i, 0xff)
# Clear parent node id & distance to gw
hw_writeConfig(EEPROM_PARENT_NODE_ID_ADDRESS, 0xFF)
hw_writeConfig(EEPROM_DISTANCE_ADDRESS, 0xFF)
# Find parent node
self.findParentNode()
self.sendRoute(build(msg, self.nc.nodeId, GATEWAY_ADDRESS, NODE_SENSOR_ID, Command.C_INTERNAL, Internal.I_CHILDREN,False).set(""))
elif (typ == Internal.I_TIME):
if (self.timeCallback != None):
# Deliver time to callback
self.timeCallback(msg.getULong())
return False
# Call incoming message callback if available
if (self.msgCallback != None):
self.msgCallback(self,msg)
# Return True if message was addressed for this node...
return True
elif (self.repeaterMode and self.nc.nodeId != AUTO):
# If this node have an id, relay the message
if (command == Command.C_INTERNAL and typ == Internal.I_FIND_PARENT):
if (sender != self.nc.parentNodeId):
if (self.nc.distance == DISTANCE_INVALID):
self.findParentNode()
if (self.nc.distance != DISTANCE_INVALID):
# Relaying nodes should always answer ping messages
# Wait a random delay of 0-2 seconds to minimize collision
# between ping ack messages from other relaying nodes
self.wait(hw_millis() & 0x3ff)
self.sendWrite(sender, build(self.nc.nodeId, sender, NODE_SENSOR_ID, Command.C_INTERNAL, Internal.I_FIND_PARENT_RESPONSE, False).set_uint(self.nc.distance))
elif (to == self.nc.nodeId):
# We should try to relay this message to another node
self.sendRoute(msg)
return False
