Hi, I tried to create an ethernet gateway + one dummy sensor , like in above exemple. My controller is domoticz for windows. I tried this code : /** * The MySensors Arduino library handles the wireless radio link and protocol * between your home built sensors/actuators and HA controller of choice. * The sensors forms a self healing radio network with optional repeaters. Each * repeater and gateway builds a routing tables in EEPROM which keeps track of the * network topology allowing messages to be routed to nodes. * * Created by Henrik Ekblad <henrik.ekblad@mysensors.org> * Copyright (C) 2013-2015 Sensnology AB * Full contributor list: https://github.com/mysensors/Arduino/graphs/contributors * * Documentation: http://www.mysensors.org * Support Forum: http://forum.mysensors.org * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * version 2 as published by the Free Software Foundation. * ******************************* * * REVISION HISTORY * Version 1.0 - Henrik EKblad * Contribution by a-lurker and Anticimex, * Contribution by Norbert Truchsess <norbert.truchsess@t-online.de> * Contribution by Tomas Hozza <thozza@gmail.com> * * * DESCRIPTION * The EthernetGateway sends data received from sensors to the ethernet link. * The gateway also accepts input on ethernet interface, which is then sent out to the radio network. * * The GW code is designed for Arduino 328p / 16MHz. ATmega168 does not have enough memory to run this program. * * LED purposes: * - To use the feature, uncomment WITH_LEDS_BLINKING in MyConfig.h * - RX (green) - blink fast on radio message recieved. In inclusion mode will blink fast only on presentation recieved * - TX (yellow) - blink fast on radio message transmitted. In inclusion mode will blink slowly * - ERR (red) - fast blink on error during transmission error or recieve crc error * * See http://www.mysensors.org/build/ethernet_gateway for wiring instructions. * */ // Enable debug prints to serial monitor #define MY_DEBUG // Enable and select radio type attached //#define MY_RADIO_NRF24 //#define MY_RADIO_RFM69 // Enable gateway ethernet module type #define MY_GATEWAY_W5100 // W5100 Ethernet module SPI enable (optional if using a shield/module that manages SPI_EN signal) //#define MY_W5100_SPI_EN 4 // Enable Soft SPI for NRF radio (note different radio wiring is required) // The W5100 ethernet module seems to have a hard time co-operate with // radio on the same spi bus. #if !defined(MY_W5100_SPI_EN) && !defined(ARDUINO_ARCH_SAMD) #define MY_SOFTSPI #define MY_SOFT_SPI_SCK_PIN 14 #define MY_SOFT_SPI_MISO_PIN 16 #define MY_SOFT_SPI_MOSI_PIN 15 #endif // When W5100 is connected we have to move CE/CSN pins for NRF radio #ifndef MY_RF24_CE_PIN #define MY_RF24_CE_PIN 5 #endif #ifndef MY_RF24_CS_PIN #define MY_RF24_CS_PIN 6 #endif // Enable to UDP //#define MY_USE_UDP #define MY_IP_ADDRESS 192,168,0,125 // If this is disabled, DHCP is used to retrieve address // Renewal period if using DHCP //#define MY_IP_RENEWAL_INTERVAL 60000 // The port to keep open on node server mode / or port to contact in client mode #define MY_PORT 5003 // Controller ip address. Enables client mode (default is "server" mode). // Also enable this if MY_USE_UDP is used and you want sensor data sent somewhere. #define MY_CONTROLLER_IP_ADDRESS 192, 168, 0, 100 // The MAC address can be anything you want but should be unique on your network. // Newer boards have a MAC address printed on the underside of the PCB, which you can (optionally) use. // Note that most of the Ardunio examples use "DEAD BEEF FEED" for the MAC address. #define MY_MAC_ADDRESS 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED // Flash leds on rx/tx/err #define MY_LEDS_BLINKING_FEATURE // Set blinking period #define MY_DEFAULT_LED_BLINK_PERIOD 300 // Enable inclusion mode //#define MY_INCLUSION_MODE_FEATURE // Enable Inclusion mode button on gateway //#define MY_INCLUSION_BUTTON_FEATURE // Set inclusion mode duration (in seconds) //#define MY_INCLUSION_MODE_DURATION 60 // Digital pin used for inclusion mode button //#define MY_INCLUSION_MODE_BUTTON_PIN 3 // Uncomment to override default HW configurations //#define MY_DEFAULT_ERR_LED_PIN 7 // Error led pin //#define MY_DEFAULT_RX_LED_PIN 8 // Receive led pin //#define MY_DEFAULT_TX_LED_PIN 9 // the PCB, on board LED #include <SPI.h> #if defined(MY_USE_UDP) #include <EthernetUdp.h> #endif #include <Ethernet.h> #include <MySensors.h> #define CHILD_ID 1 unsigned long SLEEP_TIME = 1000; // Sleep time between sends (in milliseconds) MyMessage msg(CHILD_ID, V_TEMP); unsigned int seconds = 0; void setup() { } void presentation() { // Send the sketch version information to the gateway and Controller sendSketchInfo("Dummy sensor", "1.0"); // Register all sensors to gw (they will be created as child devices) present(CHILD_ID, S_TEMP); } void loop() { seconds = seconds + 1; Serial.print("Seconds since start: "); Serial.println(seconds); send(msg.set(seconds, 1)); sleep(SLEEP_TIME); } Controller seems to connect to gateway but no devices were found: Also, serial monitor gives: Any ideas why my dummy sensor is not recognized ? UPDATE: I managed to make above code run by removing #define MY_CONTROLLER_IP_ADDRESS 192, 168, 0, 100 Regards