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 ...

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 ...

The wireless transmission is being demonstrated by the simple circuit which can send Morse Code signals over distances of a few meters to any AM radio. The Morse Code signal is considered as a ...

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 choice for DIY hackery. The full tutorial is on ...

Jul 15, 2025 Jul 15, 2025 Updated Sep 10, 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 ...

World's Most Power-Efficient, Fully Integrated Transmitter Slashes Battery Power Consumption by 75%, Setting a New Benchmark for IoT and Edge Devices The whitepaper details the breakthrough ...

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 ...

Thanks to Charlestown-born Samuel F.B. Morse, communication changed rapidly, and has been changing ever faster since. The first message sent by Morse code’s dots and dashes across a long distance ...