Sure. Just use websocket call.
If you need to send data regularly not just one-time events/intents you can use automations.
I am using following automation to get energy sensor data from HA to Loxone:
alias: Loxone - Set PC power
description: ""
trigger:
- platform: state
entity_id:
- sensor.pc_power
for:
hours: 0
minutes: 0
seconds: 0
condition:
- condition: template
value_template: >-
{{ ( as_timestamp(now()) -
as_timestamp(state_attr('automation.loxone_set_pc_power',
'last_triggered')) |int(0) ) > 10 }}
enabled: true
action:
- service: loxone.event_websocket_command
data_template:
uuid: UUID_OF_VIRTUAL_INPUT_IN_LOXONE
value: "{{states.sensor.pc_power.state | float(0) * 0.001 | float }}"
mode: single
That template condition is there to limit how often the automation can run to not overwhelm Miniserver with lot of updates.