Kc868-A128 interlock

[admin]

do you use ESPHome or KCS firmware?
if you use ESPHome, just config interlock in yaml, for example:

- platform: gpio
name: "curtain2-up"
id: relay7
interlock: [relay8]
pin:
pcf8574: pcf8574_hub_out_1
number: 6
mode: OUTPUT
inverted: true


- platform: gpio
name: "curtain2-down"
id: relay8
interlock: [relay7]
pin:
pcf8574: pcf8574_hub_out_1
number: 7
mode: OUTPUT
inverted: true