Added building details in README and fixed example to receive and process messages from server

BACnetClientExample.py

@@ -9,12 +9,12 @@
 from CASBACnetStackAdapter import *  # Contains all the Enumerations, and callback prototypes
 import pathlib
 
-APPLICATION_VERSION = "0.0.1"
+APPLICATION_VERSION = "1.0.1"
 SETTING_BACNET_IP_PORT = 47808
 SETTING_CLIENT_DEVICE_INSTANCE = 389002
 SETTING_DOWNSTREAM_DEVICE_PORT = SETTING_BACNET_IP_PORT
 SETTING_DOWNSTREAM_DEVICE_INSTANCE = 389999
-SETTING_DEFAULT_DOWNSTREAM_DEVICE_IP_ADDRESS = "192.168.2.217"
+SETTING_DEFAULT_DOWNSTREAM_DEVICE_IP_ADDRESS = "192.168.68.105"
 
 downstreamConnectionString = None  # TODO: Update accordingly
 invokeId = None
@@ -66,7 +66,7 @@ def DoUserInput():
 def WaitForResponse(timeout=3):
     expireTime = time.time() + timeout
     while time.time() < expireTime:
-        # fpLoop()
+        CASBACnetStack.BACnetStack_Tick()
         pass
 
 
@@ -300,10 +300,10 @@ def CallbackReceiveMessage(message, maxMessageLength, receivedConnectionString,
                            networkType):
     try:
         data, addr = udpSocket.recvfrom(maxMessageLength)
-        # if not data:
-        #     print("DEBUG: not data")
+        if not data:
+            return 0
         # A message was received.
-        # print ("DEBUG: CallbackReceiveMessage. Message Received", addr, data, len(data) )
+        print ("DEBUG: CallbackReceiveMessage. Message Received", addr, data, len(data) )
 
         # Convert the received address to the CAS BACnet Stack connection string format.
         ip_as_bytes = bytes(map(int, addr[0].split(".")))
@@ -407,13 +407,12 @@ def main(args):
         downstream_Device_ip_address = args[0]
         print("FYI: Using " + str(downstream_Device_ip_address) + " for the downstream device IP address")
     print("FYI: Loading CAS BACnet Stack functions... ")
-    # TODO:
+
+    udpSocket.bind(('', SETTING_BACNET_IP_PORT))
+    udpSocket.setblocking(False)
 
     print ("OK")
 
-    # "FYI: CAS BACnet Stack version: " << fpGetAPIMajorVersion() << "." << fpGetAPIMinorVersion() << "." <<
-    # fpGetAPIPatchVersion() << "." << fpGetAPIBuildVersion()
-
     print("FYI: Registering the callback Functions with the CAS BACnet Stack")
     # ---------------------------------------------------------------------------
 
@@ -454,7 +453,7 @@ def main(args):
     print ("FYI: Entering main loop...")
     while True:
         # Call the DLLs loop function which checks for messages and processes them.
-        # fpLoop()
+        CASBACnetStack.BACnetStack_Tick()
         print ("FYI: Waiting for command...")
         if not DoUserInput():
             break

CHANGELOG.md

@@ -0,0 +1,13 @@
+# Change Log
+
+## Version 1.0.X
+
+### Version 1.0.1 (2023-Oct-20)
+
+- Updated README.md with more detailed instructions for compiling and building the example. Made sure that all files required for compiling are mentioned. [Issue/6](https://github.com/chipkin/BACnetServerExamplePython/issues/6)
+- Fixed looping so that messages from a server device can be received and processed.
+- Tested using BACnet Version 4.1.19.2330
+
+### Version 1.0.0 (N/A)
+
+- Initial Release

README.md

@@ -1,4 +1,8 @@
 # BACnetClientExamplePython2.7
+
+## Required Files
+Make sure to add the [CASBACnetStack_x64_Debug.dll](https://store.chipkin.com/services/stacks/bacnet-stack) into the source directory.
+
 ## Installing Requirements
 ### Windows
 ```cmd
@@ -15,7 +19,11 @@ pip2 install -r requirements.txt
 ```ps
 python BACnetClientExample.py {IPAddress}
 ```
+Be sure to remove the {} in the actual command.
+
 ### Linux
 ```bash
 python3 BACnetClientExample.py {IPAddress}
-```
+```
+
+Be sure to remove the {} in the actual command.