update

app.py

@@ -35,7 +35,7 @@ def handle_image_display(image):
     return img
 
 with gr.Blocks() as demo:
-    gr.Markdown("# MyCobot280 Pi control demo")
+    gr.Markdown("# MyCobot280 Pi Control Demo")
     
     gr.Markdown("""
         This app is a public demo of ...
@@ -185,19 +185,19 @@ with gr.Blocks() as demo:
             PORT = int(os.environ.get("PORT", 8883))
         
         # Check if client is already connected and credentials haven't changed
-        if client_state is not None and client_state.value is not None:
+        if client_state is not None:
             credentials_changed = (
-                previous_credentials_state.value['username'] != HIVEMQ_USERNAME or
-                previous_credentials_state.value['password'] != HIVEMQ_PASSWORD or
-                previous_credentials_state.value['host'] != HIVEMQ_HOST or
-                previous_credentials_state.value['device_id'] != DEVICE_ID or
-                previous_credentials_state.value['port'] != PORT
+                previous_credentials_state['username'] != HIVEMQ_USERNAME or
+                previous_credentials_state['password'] != HIVEMQ_PASSWORD or
+                previous_credentials_state['host'] != HIVEMQ_HOST or
+                previous_credentials_state['device_id'] != DEVICE_ID or
+                previous_credentials_state['port'] != PORT
             )
             if credentials_changed:
-                client_state.value.disconnect()
-                client_state.value = None
+                client_state.disconnect()
+                client_state = None
         
-        if client_state.value is None:
+        if client_state is None:
             response_queue = queue.Queue()
             client = create_paho_client()
             try:
@@ -214,10 +214,10 @@ with gr.Blocks() as demo:
                 payload_md = ""
                 response_md = f"### Error\nFailed to connect to broker: {e}"
                 return payload_md, response_md, None, client_state, response_queue_state, previous_credentials_state
-
-            client_state.value = client
-            response_queue_state.value = response_queue
-            previous_credentials_state.value = {
+    
+            client_state = client
+            response_queue_state = response_queue
+            previous_credentials_state = {
                 'username': HIVEMQ_USERNAME,
                 'password': HIVEMQ_PASSWORD,
                 'host': HIVEMQ_HOST,
@@ -225,8 +225,8 @@ with gr.Blocks() as demo:
                 'port': PORT
             }
         else:
-            client = client_state.value
-            response_queue = response_queue_state.value
+            client = client_state
+            response_queue = response_queue_state
         
         # Prepare payload
         payload = {"command": selected_command, "args": args}
@@ -253,7 +253,7 @@ with gr.Blocks() as demo:
         else:
             response_md = "### Response\nTimed out waiting for response. Is the on-device server running?"
             return payload_md, response_md, None, client_state, response_queue_state, previous_credentials_state
-    
+        
     # Now, set up the function to be called when the "Send Command" button is clicked
     send_command_button.click(
         fn=send_command,