Build a Simple Audio Amp

[Ynze] has built an audio amplifier that looks and sounds great. His amplifier uses a National Instruments (now TI) LM3886 Overture series 68 Watt power amp. The LM3886 places [Ynze's] amp squarely in the “Gainclone” catagory. Gainclone or Chipamp are terms long used by the DIY community to describe...
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Un-crapifying a Car Stereo

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[Noah Farrington] has just accomplished a major milestone in his life, purchasing his first car! A glorious 2001 Ford Focus wagon. While it may be a fully loaded luxury vehicle, it is missing one thing poor [Noah] can’t live without. An aux-in port. He had a few options for rectifying the situation. Live with...
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Superb DIY Daft Punk Helmets

Learn how to create your own exceptional looking Daft Punk helmets using casting and molding techniques.  The project comes from a professional prop creator who shows you step by step how to create your own through a two part tutorial.  The overall detail and craftsmanship is absolutely superb.As...
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Ethernet Enabled Christmas Bells – Create a Tune in Real Time!

Here’s a superb project which allows you to create a Christmas jingle using a flash interface in your browser.  Then, you’re redirected to a webcam where you can see your tune played in real time!  Awesome!  The project uses the Arduino to handle the communication and bell control. ...
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Sonar With Python and Conference Call Hardware

[Jason] just tipped us off about his recent experiment, in which he creates a sonar system using standard audio equipment and a custom Python program. In case some of our readers don’t already know it, Sonar is a technique that uses sound propagation to detect objects on or under the surface of the water.It...
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Headphone Hack Makes Wireless an Option

If you have a favorite pair of over-the-ear headphones you may want to consider upgrading them with a wireless option. The key word here is “option” because these still retain their functionality as a wired headphone. This is nice if you only want to deal with battery life when you’re actually roaming around.Of...
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Custom Wireless Headphone Charging Station

We’ve come to expect quite a lot of convenience from our technology, to the point where repeatedly plugging in a device for recharging can seem tedious. Hackaday regular [Valentin Ameres] decided to ditch the plugs and built his own wireless headphone charger. We’ve seen [Valentin's] work before, and...
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Bluetooth Audio Adapter Hacked to Switch Off Amplified Speakers

This Bluetooth Audio Adapter is meant to connect a Bluetooth audio source (like a smartphone or tablet) to a speaker system with a plain old line-in connection. It has the ability to automatically connection when the Bluetooth device comes into range. Sounds convenient until [Andreas Pösch] points out...
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