Adding Tuya Smart Switches to Home Assistant: Three Integration Paths and Their Trade-offs

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Tuya devices can connect to Home Assistant in three ways, depending on whether they use Tuya's cloud platform, Wi-Fi firmware, or a ZigBee profile. The cloud-based Tuya integration works with nearly all Tuya devices and survives firmware updates, but it relies on polling, causing delays and failing when the internet is down. Local Tuya communicates directly over the LAN for faster, offline control, but requires a per-device local key and often fails with newer firmware or unresponsive devices. Some ESP-based plugs can be reflashed with ESPHome or Tasmota for fully local control, though this is advised against for mains wall switches due to safety and certification concerns. Tuya ZigBee switches pair with coordinators like Zigbee2MQTT or ZHA for reliable basic on/off switching, while proprietary features such as scenes and energy monitoring typically do not map cleanly.

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