Broadlink RF for Indigo

Local-LAN control of Broadlink RM4 Pro RF commands, with no cloud account and no bridge in the middle. Learn a code from a remote you already own, give it a name, and send it from an Indigo action, trigger or control page.

It exists because a good many things in a house still come with a plain RF handset and nothing else — an electric fire, a set of blinds, a garage remote. This plugin lets Indigo press those buttons.

What it gives you

• Broadlink RM4 Pro device — the hub itself: address, port, default frequency, repeat count and where the learned codes are kept.
• Broadlink RF Command device — one stored code by name, sent on demand.
• Broadlink RF Relay device — a normal Indigo relay that maps one code to On and another to Off, so schedules, triggers, action groups and control pages treat it like any other switch.
• Learning from the plugin menu — pick the hub, name the code, then follow the press-and-hold prompts in the Event Log.
• Discovery from the plugin menu — sweeps the local network and logs what it finds, which is the quickest way back when the hub's DHCP address moves.
• Existing broadlink_codes.json captures are read as they are, the older hex format included.

What it cannot do

The RM4 Pro is a remote, not a spectrum analyser. It learns and replays fixed-code RF remotes. Rolling-code and encrypted devices are beyond it, and no amount of software will change that.

RF is open loop. Nothing comes back from the far end, so the device state in Indigo is a record of what was sent, not a reading of what happened. If somebody uses the original handset, Indigo will not know. Bear that in mind when you write an automation that cares.

Requirements

• Indigo 2025.1 or later
• A Broadlink RM4 Pro on the same network
• The broadlink Python package, which Indigo installs for you from the bundled requirements.txt the first time the plugin starts

Installation

1. Go to the Releases page and download BroadlinkRF.indigoPlugin.zip.
2. Unzip it — you will get Broadlink RF.indigoPlugin.
3. Double-click Broadlink RF.indigoPlugin and Indigo will install it.

Setting it up

Open the plugin's Configure dialog and enter the hub's address. If you do not know it, run Plugins → Broadlink RF → Discover Broadlink Devices and watch the Event Log.

Then create a Broadlink RM4 Pro device pointing at that address, learn your codes through Plugins → Broadlink RF → Learn RF Command, and create a Command or Relay device for each one. A Relay is usually what you want, because everything else in Indigo already knows how to talk to a relay.

A note on discovery: Broadlink hubs answer a UDP broadcast, and UDP broadcast on wifi is sent once, at the lowest rate, with nothing acknowledging it. A sweep that finds nothing has not proved the hub is absent. Run it again before you go looking for a fault.

Acknowledgements

Built on python-broadlink by Mike Ryan and Matthew Garrett, which does all the real work of speaking to the hardware. It is MIT licensed, and this plugin would have been a great deal harder without it.

Authors & licence

Vibed into existence by CliveS, who knew what he wanted, argued until he got it, and tested it on a real house. Typed at inhuman speed by Claude (Anthropic), who mostly did as it was told.

© 2026 CliveS · MIT licence — copy it, fork it, bend it, break it, fix it, ship it. If it breaks, you get to keep both pieces.