this post was submitted on 06 Apr 2026
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When you go deep down the rabbit hole, you learn that in versions prior to Zigbee 3.0, there are all sorts of zigbee application profiles (like bluetooth profiles, if you've ever wondered why it matters that a bluetooth headset can be connected for calls, music, or both). Two prominent ones are Zigbee Light Link (LL) and Zigbee Home Automation (HA). There's also Zigbee Smart Energy. and numerous proprietary profiles.
Hubs solely designed for Zigbee LL ecosystems don't talk to Zigbee HA devices, and hubs designed solely for Zigbee HA ecosystems don't talk to Zigbee LL devices, to say nothing of any propriety profiles they may also support.
Obligatory: https://xkcd.com/927/