Ask HN: What type of lamp (or light/lumen) do you use in your home office?

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ikea ikeatradfri ikea-gateway Documentation Docs

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  • ikea-tradfri-coap-docs

    How can you communicate to your ikea tradfri gateway/hub through coap-client

    • Got Ikea Tradfri E14 and E27 bulbs, non-colored, that go from very warm (orange-ish even) to very white.

    The good: Entirely local. No cloud needed (and none exists). Hub does not phone home, except to query for updates, which is done without any extra metadata (this has been scrutinized[0] by multiple people). Updates have very synthetic but sensible changelogs. Hub provides an API over CoAP that has been reverse engineered[1], and is actually quite sensibly designed. Bulb-remote pairing and operation does not require hub at all, which is only used by the app for advanced features and discrete control. This means one can choose not to have a hub at all, or that should LAN be down for any reason - or for guests that don't have the app/lan access - there is a graceful degradation path from the app to the remotes.

    The bad: Lowest dimmer setting could be lower, at night I feel it's still quite bright. Not blessed by HomeKit for Adaptive lighting. I wish mains-powered remotes that replace physical switches exist, instead of CR2032 thingies (I blocked the physical switches so that the bulbs are never powered off, which would kill automation when guests or old habits cut power via the switch. If I want to cut power I do it via the circuit breaker panel).

    The ugly: my E14 bulbs have some coil whine when light is out. Issue is known and widely reported, not sure if it's been fixed in recent production batches.

    The used-to-be-ugly: at first everything was perfectly working, then some updates broke stuff: hub loss of IP connectivity seemingly after DHCP lease expiration, some bulbs would desync/crash, requiring pairing them again, and other connectivity issues. IIRC this lasted a year and then a batch of updates were released addressing each issue in turn.

    [0]: https://mjg59.dreamwidth.org/47803.html

    [1]: https://github.com/glenndehaan/ikea-tradfri-coap-docs

  • InfluxDB

    Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.

    InfluxDB logo
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