🏠 [vol.3] Home Assistant ESP32 ESPHome Modbus RTU RS485 DS18B20 simple steps for beginners weather

Music no copyright : Liborio Conti - Timelapse

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📌 Part 3: Adding a Second RS485 Slave (Weather Station) to ESP32 with ESPHome | Modbus RTU Integration

In this final part of the tutorial, we’ll add a second RS485 slave device to the ESP32 setup, which will be a weather station with multiple parameters. I’ll guide you through the process of connecting the weather station, configuring Modbus RTU for multiple parameters, and integrating the data into Home Assistant for easy monitoring.

🔹 Topics covered:
✔ Connecting a second RS485 slave device (weather station) to ESP32
✔ Configuring Modbus RTU for multiple parameters
✔ Integrating the weather station’s data into Home Assistant
✔ Visualizing the weather station’s data in Home Assistant dashboards

📌 Useful links:
🔗 ESPHome official documentation : https://esphome.io/
🔗 Home Assistant official site : https://www.home-assistant.io/

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00:00 Intro
00:24 Connection digram view
00:34 Components prices
01:32 Modbus RTU registers
01:54 HA ESP32 preparation script
02:40 ESP32 logs
03:08 HA Dasboard sensors

weather station manual: http://www.sonbus.com/upload/pdf/SM5390B.pdf

Modbus Tools:
https://www.modbustools.com/modbus_poll.html
https://www.powerhud.com/en/free-modbus-tester/

English Manual R46CA01:
https://file.io/vrNvZYIdDg3r