Notes to automate 25mm blinds motors in Home Assistant.

• USB-powered Roller-blinds (AliExpress)
• Broadlink RM4 Pro (AliExpress)

Insert the blinds in the tube and mount on the window as per instructions. Set-up the Broadlink as per the instructions. Onboard the Broadlink as an integration in Home Assistant (I’ve named mine simply Broadlink RM4pro, which may influence the entity_id in the commands below — please adjust as per the naming you use).

In Home assistant, go to Developer Tools -> Services and run:

In copy-pasteable format:

service: remote.learn_command
entity_id: remote.broadlink_rm4pro_remote
data:
  device: roller_blinds
  command: down
  command_type: rf

After which to test:

service: remote.send_command
entity_id: remote.broadlink_rm4pro_remote
data:
  device: roller_blinds
  command: up
  hold_secs: 1

And repeat for commands up and stop.

Then in Node-RED inside Home Assistant, you can configure the triggering of these services (so without using the Broadlink functions that are native in Node-RED). For this use a service call with contents:

In copy-pasteable format:

{
    "device": "roller_blinds",
    "command": "down",
    "hold_secs": 1
}

You can then make it look like this:

In this example, you see both a button trigger as well as a time-based trigger.