It wasn’t long ago that you needed to know Morse code to be a ham radio operator. That requirement has gone in most places, but code is still useful and many hams use it, especially hams that like to ...

For most of us who have experimented with Morse code, the oldest key we are likely to have used will have been a piece of military surplus kit from the Second World War era. [Kyle Gabriel] however is ...

The new Raspberry Pi is smaller, cheaper and more energy efficient—not a bad way to update a best-selling device. Whether you’ve taken the plunge on one of the new units or you want to put the ...

The power and affordability of the Raspberry Pi has given rise to a new type of computer. One that goes beyond the credit-sized board, with colorful shells and displays that make it feel like a normal ...