接入modbus设备

操作步骤

1. Modbus协议

   http://www.modbus.org/specs.php

2. HomeAssistant中Modbus的配置

   https://www.home-assistant.io/integrations#search/modbus

3. 具体设备配置

4. 协议不全的问题与解决

参考

• LH-04继电器模块的配置

```yaml modbus: # - name: hub_tcp # type: rtuovertcp # host: 192.168.31.246 # port: 8899 - name: hub_serial type: serial method: rtu port: /dev/ttyUSB0 baudrate: 9600 stopbits: 1 bytesize: 8 parity: N

switch: platform: modbus coils: - name: switch1 hub: hub_serial slave: 1 coil: 0 - name: switch2 hub: hub_serial slave: 1 coil: 1 - name: switch3 hub: hub_serial slave: 1 coil: 2 - name: switch4 hub: hub_serial slave: 1 coil: 3 ```

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