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 ...

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 ...

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 ...

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 ...

We like to think of space as the one place where all tech is high and all gadgets are bleeding edge. That may be the case most of the time, but Japan’s Fukuoka Institute of Technology is taking one ...

Jim Charlong works his Morse code key. All photos courtesy of Parks Canada. GLACE BAY, Nova Scotia — On Dec.17, 1902, from the seaside Table Head radio station at Glace Bay, Nova Scotia, Guglielmo ...