Nice project. I also do a similar project with esp32 and modbus RTU. In addition, in order to make the user to operate easily, I apply the wifi function of esp32 to make the user to operate by brower interface, including start, stop and export data of gauge.
@@puyiotaittirong4995 IotWebConf seems a library for Arduino that helps in managing Wi-Fi and web configuration parameters for IoT devices. I build the project by html, php and MySQL. Anyway, thanks for your information, I will study this library.
