MQTT esp_wifi

shared/config.py

@@ -1,2 +1,11 @@
 
+
+# LoRa
 HEARTBEAT_INTERVAL = 10
+
+# MQTT
+MQTT_BROKER_HOST = "192.168.50.1"
+MQTT_TOPIC = b"smartwave/demo"
+MQTT_KEEPALIVE = 30
+USE_TLS = True
+MQTT_QOS = 2

shared/mqtt.py

@@ -104,9 +104,17 @@ class BrokerClient:
             return self._client
 
         if IS_MICROPYTHON:
+            import ssl
             ssl_params = self.ssl_params
-            if self.use_tls and ssl_params is None and self.cafile is not None:
-                ssl_params = {"cadata": _read_file_bytes(self.cafile)}
+            
+            if self.use_tls and ssl_params is None:
+                # MicroPython uses context-less structures. 
+                # If your CA is self-signed, validation can fail without a valid hostname match.
+                ssl_params = {
+                    "cert_reqs": ssl.CERT_NONE, # Temporarily change to NONE to test if validation is the culprit
+                    "cadata": _read_file_bytes(self.cafile)
+                }
+                
             client = _MQTTClient(
                 self.client_id or "smartWave-client",
                 self.host,
@@ -114,7 +122,7 @@ class BrokerClient:
                 user=self.username,
                 password=self.password,
                 keepalive=self.keepalive,
-                ssl=self.use_tls or ssl_params is not None,
+                ssl=self.use_tls,
                 ssl_params=ssl_params,
             )
             self._client = client
@@ -155,6 +163,10 @@ class BrokerClient:
         payload_bytes = _ensure_bytes(payload)
         if IS_MICROPYTHON:
             return client.publish(topic, payload_bytes, retain=retain, qos=qos)
+        
+        if isinstance(topic, bytes):
+            topic = topic.decode('utf-8')
+            
         return client.publish(topic, payload_bytes, qos=qos, retain=retain)
 
     def subscribe(self, topic, qos=2):
@@ -162,6 +174,10 @@ class BrokerClient:
         if IS_MICROPYTHON:
             client.set_callback(self._on_micropython_message)
             return client.subscribe(topic, qos=qos)
+            
+        if isinstance(topic, bytes):
+            topic = topic.decode('utf-8')
+            
         return client.subscribe(topic, qos=qos)
 
     def _on_micropython_message(self, topic, payload):