Add MY_MQTT_ETH_INIT_DELAY to configuration

MY_MQTT_ETH_INIT_DELAY configuration field is useful for adjusting
Ethernet Chip initialisation delay time by library user.

Author: mobrembski

MyConfig.h

@@ -1551,6 +1551,19 @@
  */
 //#define MY_MQTT_CLIENT_KEY
 
+/**
+ * @def MY_MQTT_ETH_INIT_DELAY
+ * @brief Set a delay for Ethernet initialisation.
+ *
+ * This define is useful if you want to change default Ethernet chip initialisation
+ * delay time to other value. By default, it is 1000ms
+ * Example: @code #define MY_MQTT_ETH_INIT_DELAY 1 @endcode
+ *
+ * @endcode
+ */
+#ifndef MY_MQTT_ETH_INIT_DELAY
+#define MY_MQTT_ETH_INIT_DELAY 1000
+#endif
 /**
  * @def MY_IP_ADDRESS
  * @brief Static ip address of gateway. If not defined, DHCP will be used.

core/MyGatewayTransportMQTTClient.cpp

@@ -194,7 +194,7 @@ bool gatewayTransportConnect(void)
 	              Ethernet.localIP()[0],
 	              Ethernet.localIP()[1], Ethernet.localIP()[2], Ethernet.localIP()[3]);
 	// give the Ethernet interface a second to initialize
-	delay(1000);
+	delay(MY_MQTT_ETH_INIT_DELAY);
 #endif
 	return true;
 }