Update MQTT.md

tasmota · Sep 6, 2023 · cbc311e · cbc311e
1 parent 08a8661
commit cbc311e
Showing 1 changed file with 5 additions and 2 deletions.
diff --git a/docs/MQTT.md b/docs/MQTT.md
@@ -220,9 +220,12 @@ To use it you must [compile your build](Compile-your-build). Add the following t
 #define SUPPORT_MQTT_EVENT
 #endif
 ```
-To increase the maximum MQTT message size that Tasmota is willing to process, increase the following constant by setting it in `user_config_override.h`:
+To default maximum MQTT message size that Tasmota can process is 256 bytes. You can increase it by redefining the following constant in `user_config_override.h`:
 ```
-#define RULE_MAX_MQTT_EVENTSZ  256
+#ifdef RULE_MAX_MQTT_EVENTSZ
+#undef RULE_MAX_MQTT_EVENTSZ
+#endif
+#define RULE_MAX_MQTT_EVENTSZ  512
 ```
 
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