If you need a trainer that’s more compact for on-the-go CW, though, take a look at this wearable Morse code device based on the M5StickC Plus instead.

With the size of electronic parts and batteries these days, very small items are obviously becoming more and more viable. [Yann Guidon] has made some awesome pieces of LED jewelry using a minimal n… ...

This could work for any hollow figurine you have collecting dust on your shelves, but due to Android's open-source nature a little robot is the obvious ...

communication channels Why and how Morse code has survived for 175 years Morse code works whether flashing a spotlight or blinking your eyes – or even tapping on a smartphone touchscreen.

Morse Code Celebrates 175 Years and Counting The elegantly simple code works whether flashing a spotlight or blinking your eyes—or even tapping on a smartphone touchscreen ...