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Melloman tape-looping keyboard
[Michael] tipped us off about an incredible build from back in 2005. The Melloman is a keyboard that uses a different tape loop for each key. The instrument is generally known as a Mellotron, and...
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Looping foot pedal
This guitar pedal can record, playback, and modify samples. [Colin Merkel], also know for his work on electronic door locks, built this to replicate some guitar effects he heard in recordings. By...
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Stomp box synthesizer
[Brian McNamara] fed the output of his guitar pedal back into its input creating a looped synthesizer. He started with an effects pedal he made but now we think he’s ended up with an electronic stomp...
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Hackaday Prize Entry: Industrial Servo Control On The Cheap
[Oscar] wonders why hobby projects ignore all the powerful brushless motors available for far less than the equivalent stepper motors, especially with advanced techniques available to overcome their...
View ArticleLooptaggr: Endless Graffiti
If your problem is how to put out a maximum amount of repetitive graffiti with a minimum amount of effort, we’ve got your solution. Or rather, [Ariel Schlesinger] and [Aram Bartholl] had your solution...
View Article[Jeri] Builds a Magnetic Loop Antenna
Most new hams quickly learn that the high-frequency bands are where the action is, and getting on the air somewhere between 40- and 160-meters is the way to make those coveted globe-hopping contacts....
View ArticleHigh-Style Ball Balancing Platform
If IKEA made ball-balancing PID robots, they’d probably look like this one. This [Johan Link] build isn’t just about style. A look under the hood reveals not the standard, off-the-shelf microcontroller...
View ArticleReverse Engineering An Insulin Pump With An SDR And Decapping
Insulin pumps are a medical device used by people with diabetes to automatically deliver a measured dose of insulin into their bloodstream. Traditionally they have involved a canula and separate...
View ArticleWire Loop And Amplifier Solve Audio Problem For The Hearing Impaired
Imagine being asked to provide sound reinforcement for a meeting that occurs in a large room, where anyone can be the speaker, and in a situation where microphones would hinder the flow of the meeting....
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Homebrew Loop Antenna Brings the Shortwave World to You
Radio may be dead in terms of delivering entertainment, but it’s times like these when the original social network comes into its own. Being able to tune in stations from across the planet to get fresh...
View ArticleHe’s the Operator of His Pocket Arduino
The band Kraftwerk hit the music scene with its unique electronic sound in the 70s in Germany, opening the door for the electronic music revolution of the following decade. If you’re not familiar with...
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Compose Any Song With Twelve Buttons
Limitations placed on any creative process often paradoxically create an environment in which creativity flourishes. A simple overview of modern pop, rock, or country music illustrates this principle...
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Simple Circuit Keeps Process Control Loops in Tune
Spare a moment’s pity for the process engineer, whose job it is to keep industrial automation running no matter what. These poor souls seem to be forever on call, fielding panicked requests to come to...
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HF In Small Spaces
Generally, the biggest problem a new ham radio operator will come across when starting out on the high frequency (HF) bands is finding physical space for the antennas. For a quick example, a dipole...
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