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 ...
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 ...
Long before pixels and cell towers, there were dots and dashes. Morse Code was the complicated mainstay communication of choice practically from the day Samuel Morse started clicking his prized ...
How did we make our transmitter on the island? The Rough Science transmitter had the following parts: 12V car battery, Morse key switch, buzzer and transformer mounted on a wooden board and an antenna ...
The Titanic famously (or infamously) used Morse code to call out in distress at the end of its final voyage. Ships at sea and the land-based stations that supported them used Morse code for decades, ...
Jul 15, 2025 Jul 15, 2025 Updated Oct 21, 2025 Carter Martone couldn’t wait to show his dad how his Morse code transmitter worked. The simple device he built during Camp Invention in Merrimack last ...
IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. Telegraph keys are electrical on-off ...
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