These ideas are identical to concepts used in cell phones and Wi-Fi. Initially we build a transmitter and receiver to communicate between Arduinos using Morse code sent by pulses of light waves. Next, ...

[ech0s] put his to good use by constructing a Morse code transmitter with dual operating modes. The transmitter can not only encode and transmit messages entered in a terminal client, it also ...

How did we make our transmitter ... Morse key is a switch that connects and disconnects the 12V power to the rest of the circuit. It has a wooden knob on the top, which makes tapping out the Morse ...

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 ...

Aviators also use Morse code to identify automated navigational aids. These are radio beacons that help pilots follow routes, traveling from one transmitter ... light. A receiver would read ...

Finally, the inventors manipulated a primitive transmitter, and a receiver scratched Morse’s simple message—”A patient waiter is no loser”—via a code of lines and curves. On this day ...

CC BY-ND Aviators also use Morse code to identify automated navigational aids. These are radio beacons that help pilots follow routes, traveling from one transmitter to the next on aeronautical ...

Morse Code was the complicated mainstay communication ... By his 20s, he had scrounged up an old radio receiver and “an old transmitter where you had to plug in a crystal,” he said. “ ...