Teardown
Look into the internals of an existing wired battery-powered doorbell from FUERS bought on AliExpress, priced at USD $4.00.


🫑 Retrofit a wired doorbell to add WiFi and make it smart 🔔
Teardown
Look into the internals of an existing wired battery-powered doorbell from FUERS bought on AliExpress, priced at USD $4.00.
Chip
Chip TQ33E-11 is used.