#include // on the W5500 there are eight ports available const uint8_t DHCP_SOCK = 0; const uint8_t MQTT_SOCK = 1; const uint8_t TCPTEST_SOCK = 2; const uint8_t HTTP_SOCK_1 = 3; const uint8_t HTTP_SOCK_2 = 4; const uint8_t HTTP_SOCK_3 = 5;