--- title: "Arduino Mega + Ethernet Shield integration with HA via MQTT" url: "https://maker.wiznet.io/taylor/projects/arduino-mega-ethernet-shield-integration-with-ha-via-mqtt/" markdown_url: "https://maker.wiznet.io/taylor/projects/arduino-mega-ethernet-shield-integration-with-ha-via-mqtt/md" type: "UCC: User Created Content" author: "Iron" author_url: "https://ai-speaker.discourse.group/t/integracja-arduino-mega-ethernet-shield-z-ha-przez-mqtt/212/158" editor: "WIZnet" editor_url: "https://maker.wiznet.io/" original_author: "Iron" original_url: "https://ai-speaker.discourse.group/t/integracja-arduino-mega-ethernet-shield-z-ha-przez-mqtt/212/158" published: "2022-08-31" language: "en" tags: ["Home Automation", "Sensors"] hardware: ["Arduino Mega 2560", "Arduino Ethernet Shield"] likes: 3 views: 10931 comments: 0 source: "WIZnet Makers (https://maker.wiznet.io/)" --- # Arduino Mega + Ethernet Shield integration with HA via MQTT > Arduino Mega + Ethernet Shield integration with HA via MQTT. Original author: Iron (source: https://ai-speaker.discourse.group/t/integracja-arduino-mega-ethernet-shield-z-ha-przez-mqtt/212/158) ## Components - **Arduino Mega 2560** x 1 ([docs](https://www.farnell.com/datasheets/1674878.pdf?_ga=2.12759806.871556650.1519619484-654667508.1508905608&_gac=1.209399078.1518779130.EAIaIQobChMI97my66Sq2QIV77ftCh01kgA_EAMYASAAEgKPyvD_BwE)) - **Arduino Ethernet Shield** x 1: W5100 ([docs](https://docs.arduino.cc/retired/shields/arduino-ethernet-shield-without-poe-module)) - Software: **Arduino IDE** ([docs](https://www.arduino.cc/en/software)) - Software: **AI Speaker** ## Documents and links - [Arduino-to-Home-Assistant-MQTT-multisensor](https://github.com/ironek69/Arduino-to-Home-Assistant-MQTT-multisensor) (code) ## Article Original : What a multisensor can do: - Room temperature reading; ( [BME 280 sensor: temperature, humidity, pressure, altitude 2](https://allegro.pl/oferta/bme280-czujnik-temperatury-wilgotnosci-cisnienia-7954651090?utm_feed=aa34192d-eee2-4419-9a9a-de66b9dfae24&utm_source=google&utm_medium=cpc&utm_campaign=_DIO_pla_dom_wyposazenie_besty-top&ev_adgr=Wyposa%C5%BCenie+Top+oferty&gclid=EAIaIQobChMI3-7Yhqau6AIVxYeyCh1B6AIpEAQYAiABEgJY9_D_BwE)) - Indoor Humidity Reading; - Room pressure reading; - Reading the light intensity in the room; ( [Analog sensor) 2](https://botland.com.pl/pl/czujniki-swiatla-i-koloru/11885-fotorezystor-analogowy-iduino-se012-5903351241151.html?search_query=czujnik+swiatla&results=74) - Displaying the above parameters on the display; [(OLED Display 0.91) 3](http://propix.com.pl/pl/p/LCD-OLED-0.91-128x32-I2C-White/1701) - Flame / fire sensor and reporting to HA; ( [https://botland.com.pl/pl/czujniki-temperatury/4461-czujnik-awodieni-760-1100nm-analogowy.html 9](https://botland.com.pl/pl/czujniki-temperatury/4461-czujnik-plomieni-760-1100nm-analogowy.html)) - When flames are detected, lighting, diode and [buzzer](http://propix.com.pl/pl/p/Buzzer-z-generatorem-5V-12-mm/655) are turned on ; - Room lighting - 433MHz remote control; - Control of communication with the control panel on the Arduino Mega - in the absence of communication, the red LED flashes; - Room temperature and [lighting](https://pl.gearbest.com/led-flashlights/pp_453059.html) control with [a 433MHz remote control](https://allegro.pl/oferta/pilot-samokopiujacy-uniwersalny-bramy-alarmu-mhz-8859942470?utm_feed=aa34192d-eee2-4419-9a9a-de66b9dfae24&utm_source=google&utm_medium=cpc&utm_campaign=_ELKTRK_PLA_RTV+i+AGD+_top_&ev_adgr=Piloty&gclid=EAIaIQobChMInKrzw6mu6AIVyawYCh01AglvEAQYByABEgLQ9PD_BwE) - Turning off the fire alarm / [red led](https://botland.com.pl/pl/diody-led/3314-dioda-led-5mm-czerwona-migajaca-10szt.html?search_query=led+migajaca&results=6) + [buzzer](http://propix.com.pl/pl/p/Buzzer-z-generatorem-5V-12-mm/655) by means of [a 433MHz remote control](https://allegro.pl/oferta/pilot-samokopiujacy-uniwersalny-bramy-alarmu-mhz-8859942470?utm_feed=aa34192d-eee2-4419-9a9a-de66b9dfae24&utm_source=google&utm_medium=cpc&utm_campaign=_ELKTRK_PLA_RTV+i+AGD+_top_&ev_adgr=Piloty&gclid=EAIaIQobChMInKrzw6mu6AIVyawYCh01AglvEAQYByABEgLQ9PD_BwE) - Receiving RF codes 433; ( [RF receiver 433 MHz 1](https://abc-rc.pl/product-pol-6140-Modul-radiowy-RF-433MHz-Arduino-nadajnik-i-odbiornik-Arduino.html)) - [Communication with Arduino Mega 2560 via RS 485. 9](https://botland.com.pl/pl/czujniki-temperatury/4461-czujnik-plomieni-760-1100nm-analogowy.html) - In addition to Arduino nano, I used [Grove - Base Shield for Arduino Nano 1](https://botland.com.pl/pl/arduino-shield-ekspandery-wyprowadzen/14994-grove-base-shield-dla-arduino-nano.html)and [wires with connectors for Grove that I cut in half and soldered to the sensors 2](https://botland.com.pl/pl/grove-przewody-polaczeniowe/4400-grove-zestaw-5-przewodow-zensko-zenskich-4-pin-2mm-20cm-z-zatrzaskiem.html?results=1120&search_query=przewod) - [I stuffed everything into the housing.](https://allegro.pl/oferta/obudowa-wodoodporna-hermetyczna-ip66-sonoff-th-r2-9060977315?utm_feed=aa34192d-eee2-4419-9a9a-de66b9dfae24&utm_source=google&utm_medium=cpc&utm_campaign=_DIO_pla_dom_wyposazenie&ev_adgr=Inteligentny+dom&gclid=EAIaIQobChMI1tjhv66u6AIVzKSaCh0qhQArEAYYAiABEgK6APD_BwE) (Links to individual modules used in the project after hovering the mouse over) A video of how the flame detection and LED lighting control works: [Embedded media](https://www.youtube.com/embed/Lqxv7Xg-VnI) --- Source: https://maker.wiznet.io/taylor/projects/arduino-mega-ethernet-shield-integration-with-ha-via-mqtt/