How to send custom data to mysensors node?

[eMdzeJ]

I need set some parameters in Home Assistant and send it to mysensors node. I far I know I can do it by S_CUSTOM sensor type and V_VARx values.

But how to set it in Home Assistant? I want to have input text/number field in Home Assistant to store parameters.

For example:

I've temperature sensor and want to switch relay (starts fan) when temperature reach parameter set in Home Assistant input number field.

[eMdzeJ]

V_VARx not working because HA saves states/data from mysensors to file. When you update sensor data from HA that file doesn't change.

I can send data to node by V_TEXT messages using notify service. It works