Reverse Engineering My Smart Sauna: A Battle Against Huum's Cloud
2025-05-30
Frustrated with Huum's proprietary cloud service for controlling his sauna, the author decided to take matters into his own hands. He reverse-engineered the communication protocol between the sauna controller and the cloud, capturing TCP packets and identifying message types. This allowed him to build a local system to remotely control his sauna, bypassing the cloud entirely. The process, detailed in his blog post, is a fascinating example of DIY smart home hacking.
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