Smart locks are now widely available, and allow users to open & close a door by the press of a button on their smartphone. Some locks are even connected to the cloud, and allows the user to open/close it remotely, and share the access to the door with other people.

In this project, we are going to build our own DIY version of such a smart lock, that can be controlled from anywhere in the world, as we'll connect it to Adafruit IO.

However, we'll add a twist in the project: we will actually also allow the user to control the door lock by using their fingerprint. And as the fingerprint sensor will also be connected to the Adafruit IO platform, it will be really easy to make both devices talk to each other. Let's dive in!