These projects are perfect for Arduino.Know when someone knocks — or worse Arduino is able to interpret signals from a variety of sensors. By placing a unit equipped with an ADXL345, an ...

Finally, your Arduino toolkit will be incomplete if you don't purchase some sensor and circuit modules. After all, you can’t build a precise weather station without a BME280, DHT22, DS18B20, or ...

The thing about Arduino's I/O pins is that they come with special functions (and corresponding limitations) that beginners are generally unaware of. For instance, in the Uno board, pins D0 and D1 ...