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Why does the TuyaOS Bluetooth LE device disconnect quickly (or timeout) after being connected to the app or gateway?

Last Updated on：2024-02-18 06:46:21

Check if the service is effectively registered, you can connect to the device through nrf-connect and confirm the service, it is necessary to confirm the existence of service, characteristic value, and descriptor CCCD.
Analyze whether the host has performed effective first packet transmission through packet capture.
Check for any behavior that blocks the device from normal Notify operation, a common method is to confirm through logs at the Notify interface.
If packet capture confirms there is no Notify data, it is necessary to confirm whether there is a CCCD enabled method controlling the Notify data.