Mephisto III Internet Radio

Avid Hackaday reader [Matthias] told us he takes a lot of inspiration from our site. That’s quite a compliment, because his work is both inspiring and beautiful. [Matthias] wanted to build a UI using JavaFX, so he made a really nice-looking Raspberry Pi-based Internet radio. We featured his previous radio build a few months ago when he modified an old Bakelite unit.

The Mephisto III is enclosed in a handsome oak cabinet built by [Matthias]‘ father. Like his previous build, this one uses the Google Music interface to play MP3s and streams radio from the web. He also added weather and a clock, which is a nice touch. In addition to the Raspi and a USB WLAN stick, [Matthias] is using two relays. One relay powers the amplifier and the other enables the display. [Matthias] is impressed with the JavaFX API, but found that the performance of the Raspberry Pi is insufficient for smooth multithreading. He considered switching to a BeagleBone Black, but it has no component out.

If you want to be able to listen to vinyl, too, check out this killer media center. If you have lost your taste for Pi, build yourself a web radio from a tiny router.

[Thanks Matthias]

Simple looking Antique Internet Radio has a lot under the hood

rpi-internet-radioAt first glance you might not even notice that this 1934 radio has been altered. But close study of the tuning dial will tip you off that changes have been made. It still scrolls through stations just like the original. But it’s not a wheel with some numbers on it. The rotary motion is an effect produced by an LCD screen.

This is the second time we’ve seen one of [Florian Amrhein's] Internet radio projects. The first used guts from a Laptop paired with an Arduino to pull everything together. This time he’s chosen to wield a Raspberry Pi board. It feeds a USB sound card for a bit better quality. A small amplifier board us used to power one large speaker behind the original grill of the radio.

Check out the demo video to see that radio dial in action. It’s delightful that he went to the trouble to emulate a rotating disc to keep with the theme of the project.

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Internet radio occupies an 80-year-old radio case

[Florian Amrhein] made use of some old hardware to build his own internet radio in a 1930′s radio case.

The original hardware is a tube-amplified radio which he picked up on eBay. There’s tons of room in there once he removed the original electronics and that’s a good thing because he crammed a lot of new parts into the build. The main one being an old laptop he had on hand. It’s got a 10″ screen which is too large for the opening, but that ended up being okay. He coded an interface with C and SDL which give him a visual representation of his favorite online streams. The knob to the right moves the red line when turned and causes the Debian box to change to the new stream using the Music Player Daemon. Two potentiometers control the tuning and volume, and there is also a rotary encoder which is not yet in use. All three are connected to the laptop via an Arduino.

Check out the finished product in the video after the break. It sounds quite good thanks to the small automotive speaker and amplifier also crammed into the old case.

If you don’t have a laptop lying around to use in a project like this consider a microcontroller and character LCD based system.

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