Home assistant Custom component for Modbus TCP/IP

Installation

Download using HACS (add repository manually) or manually download and put it in the custom_components folder.

Purpose of integration

This integration supports dynamically loading device drivers, meaning that you just need to add one file to support a new modbus device. This file will contain everything modbus related (addresses, scaling etc), and also information related to Home Assistant entities - that is, what type of entity it is, units etc.

Usage

Create a new device file (devices/manufacturer/devicemodel.py). This file needs to define the following:

• A "Device" class subclassing ModbusDevice:
• Group enums
• Datapoints for each of the previously defined groups

The class will have access to the callbacks:

• onBeforeRead - Called before the groups are polled
• onAfterRead - Called after the groups are polled. Use this if you need to do some calculations / special conversion etc.

Take a look at an existing device file as an example

Supported Home Assistant entities

• Sensor
• Switch
• Number
• BinarySensor
• Select

It's easy too add support for more, so let me know if anything's needed.