LaunchPad dev boards from Texas Instruments are cheap and easy to program, making them a great Arduino alternative if you can do without some of the bells and whistles. [ech0s] put his to good use by ...

If you’re looking for a simple way to make an RF transmitter, check out [Tomasz]’s Morse code transmitter. His design uses nothing more than a microcontroller and a 16MHz crystal to transmit CW Morse ...

The micro:bit has a built-in radio that can be used to create a very simple Morse code transmitter. This is an extract from the newly published second edition of my book on programming the micro:bit ...

Version 1.0.1 of Black Cat CW Keyer has been released. Black Cat CW Keyer lets you send morse code from your computer. You can type out the text to be sent (immediately or buffered) as well as create ...

We won't repeat the Morse code introductory material presented in Chapters 17 and 26. But, let's consider briefly how Morse code is sent and received. In Chapter 26, we learned that amateur radio ...

Larry Kahaner | Larry Kahaner is an American journalist and author who resides in Bethesda, Maryland. Steve Galchutt shows off the custom-made low-wattage transmitter he uses on his treks. Chase Brush ...

This series of projects explore concepts of radio communications. We use LEDs to generate (very high frequency) radio waves and photo-resistors to take the place of radio antennas. These ideas are ...