:link_to_translation:`zh_CN:[中文]`
The Espressif ESP-Modbus Library (esp-modbus) supports Modbus communication in the networks based on RS485, Wi-Fi, and Ethernet interfaces.
Since ESP-IDF version v5.0, the component freemodbus has been moved from ESP-IDF to a separate repository:
The documentation can be found through the link below:
The examples below demonstrate the ESP-Modbus library of serial and TCP ports for both slave and master implementations respectively.
- :example:`protocols/modbus/serial/mb_slave`
- :example:`protocols/modbus/serial/mb_master`
- :example:`protocols/modbus/tcp/mb_tcp_slave`
- :example:`protocols/modbus/tcp/mb_tcp_master`
Please refer to the README.md documents of each specific example for details.
- For the detailed protocol specifications, see The Modbus Organization.