Collaborate Disseminate
We all know that light and sound are wave phenomena, but of very different kinds. Light is electromechanical in nature, while sound is mechanical. Light can travel through a vacuum, …read more Continue reading Acousto-Optic Filter Uses Sound to Bend Light
Hopefully by now most of us know better than to rent a modem from an internet service provider. Buying your own and using it is almost always an easy way …read more Continue reading Cable Modem Turned Spectrum Analyzer
We don’t normally embrace the supernatural here at Hackaday, but when the topic turns to the radio frequency world, Arthur C. Clarke’s maxim about sufficiently advanced technology being akin to …read more Continue reading New Video Series: Learning Antenna Basics with Karen Rucker
It’s a problem that few of us will likely ever face: once you’ve built your first homemade integrated circuit, what do you do next? If you’re [Sam Zeloof], the answer …read more Continue reading Garage Semiconductor Fab Gets Reactive-Ion Etching Upgrade
Ah, what fond memories we have of our misspent youth, walking around with a 9,000-volt electromagnetic pulse generator in our Levi’s 501s and zapping all the electronic devices nobody yet …read more Continue reading Is that an EMP Generator in Your Pocket or Is My Calculator Just Broken?
One of the main advantages of cheap wireless modules is that they get used in consumer electronics, so if you know what’s being used you can build your own compatible …read more Continue reading Hacking A Solar Inverter RF Interface
Is it really cheating if the aimbot you’ve built plays the game worse than you do? We vote no, and while we take a dim view on cheating in general, …read more Continue reading Teaching a Machine to Be Worse at a Video Game Than You Are
The plethora of wireless communications technologies have cut the comms wire for many applications, but these devices still require power. For home automation, this might mean a battery or mains …read more Continue reading Reverse Engineering Self-Powered Wireless Switches
Artificially constrained designs can be among the most challenging projects to build, and the most interesting to consider. The amateur radio world is no stranger to this, with homebrew radio designs that set some sort of line in the sand. …read more
Continue reading Getting On the Air With a 10-Minute-ish Ham Transmitter
nRF24L01+ module fixed about as well as it can be, by adding an appropriate capacitor on the PCB antenna, and a 1.0 uF capacitor across the power pins for good measure.
Good old nRF24L01+ wireless modules are inexpensive and effective. …read more
Continue reading Fixing nRF24L01+ Modules Without Going (Too) Insane