Garage door openers aren’t revolutionary tech, but they’re very useful. One enterprising Raspberry Pi user used the board to create a wireless access point connected to the garage door that can open it via the browser on your phone.
The setup is relatively cheap and doesn’t require an unapproachable level of skill to put together. The advantage is that a guest can also enter through the garage door without requiring their own remote. Check out the link for full details.
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