Reverse Engineering My Coway Air Purifier to Ditch the Cloud
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Coway’s cloud-dependent IoCare integration for its Airmega air purifiers has repeatedly broken, prompting one owner to reverse-engineer the device for local control. The Airmega IconS, a Wi-Fi-enabled HEPA purifier positioned as mid-century-style furniture, relies on Coway’s servers for app commands and status updates, and the Home Assistant integration that bridges it to Apple Home has failed at least once or twice a year. Documented outages include Coway banning the integration for hammering its servers before relenting, an app rebrand from IoCare to IoCare+ that forced a rewrite, and minor HTML layout changes that broke the integration’s scraping. The episode illustrates the fragility of cloud-tethered smart home devices, where basic functions like fan speed depend on third-party server uptime. Watch for whether Coway exposes a local API or official Home Assistant support, and whether other appliance makers follow suit as owners push for offline control.
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Named in this story
Coway, Coway Airmega IconS, Home Assistant, Apple Home