Coding

Let's learn how to flash an LED on the Raspberry Pi when someone sends us a new email.

I created a morse code generator before based on entering a string at the console. Now I extended it to generate a message by clicking a button.

When you start out creating circuits with the Raspberry Pi and its GPIO pins, there's an unexpected but important concept to understand, called "floating". To adjust for it, you need to understand how to use pullup and pulldown resistors.

Making the Pi blink an LED a few times is thrilling, but what about building something.. more? Let's build a morse code transmitter!