The home security expert has a biometric keypad that can be connected to its smart locks, allowing keyless access to your home. The Smart Keypad 2 allows you to input a custom PIN and/or your ...

After this tedious step, he designed a PCB that hosts an Arduino Nano to accept input, two MCP23017 GPIO expanders to give it enough outputs, and CD4066BE CMOS switches to trigger the connections.

For more advanced security applications, you might also want to explore our RFID door lock system using Arduino, which shares similar hardware components. At its core, the system offers automatic ...

Keypad phones, believe it or not, are still in use, and there is a surprising amount of variety to choose from. Some of the phones include 4G connectivity, cameras, and are built to last. If you ...

Download all the source files and open examples/ * / *.ino in arduino IDE. Compile and download and run it on a arduino board. The SGP30 uses a dynamic baseline compensation algorithm and on-chip ...

You can create a release to package software, along with release notes and links to binary files, for other people to use. Learn more about releases in our docs.