From 345c34a7153c04aacf1e3ae1814ec43831e5aad1 Mon Sep 17 00:00:00 2001
From: Giampaolo Mancini <g.mancini@arduino.cc>
Date: Wed, 14 Feb 2024 12:56:02 +0100
Subject: [PATCH] Increase MQTT buffer size on STM32H7

---
 src/ArduinoIoTCloudTCP.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/ArduinoIoTCloudTCP.h b/src/ArduinoIoTCloudTCP.h
index e50f9a07..9c9c876b 100644
--- a/src/ArduinoIoTCloudTCP.h
+++ b/src/ArduinoIoTCloudTCP.h
@@ -106,7 +106,11 @@ class ArduinoIoTCloudTCP: public ArduinoIoTCloudClass
 #endif
 
   private:
+#if defined(ARDUINO_PORTENTA_H7_M7) || defined(ARDUINO_OPTA) || defined(ARDUINO_GIGA)
+    static const int MQTT_TRANSMIT_BUFFER_SIZE = 1024;
+#else
     static const int MQTT_TRANSMIT_BUFFER_SIZE = 256;
+#endif
 
     enum class State
     {