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.

Continue reading “Internet radio occupies an 80-year-old radio case”

Laptop motherboard reborn as a low-wattage server

[Darknezz] sent us a set of photos and some details about his damaged laptop motherboard turned into a server. A client brought him a Dell 1525 on which nothing was showing up on the LCD screen. The HDMI and VGA still worked, and he traced the problem to no signal coming out of the motherboard. He swapped the board out to get the laptop working again, but he client said he could keep the damaged one.

It has a dual-core CPU which meets his needs and since it’s meant to run off of a battery it’s as energy-efficient as possible. [Darknezz] dug through his parts bin and found a PSU that could supply the needed 19.5V at 3.5A. The connector didn’t match but it didn’t take him too long to patch into it using a spare Molex connector. He also needed a power button and ended up soldering a momentary push switch to a couple of pads which he traced out form the original connector. The only thing he actually ended up purchasing were the memory modules. Check out the photos he took of the alterations in the gallery after the break.

Continue reading “Laptop motherboard reborn as a low-wattage server”

Laptop LCD resurrection gets some clean packaging

We love to see derivative works that take a great hack and make it even better. This LCD Laptop resurrection project is an excellent example. [Alex] took the work seen on this other FPGA LCD driver and delivered a leap forward on the final hardware packaging.

The link at the top drops you into the second page of [Alex’s] project thread. But if you go back to the beginning you’ll see the protoboard and spaghetti wiring which started off the process. Obviously if he plans to use this for a length of time it needs to be fortified or he’ll be cracking it open and grabbing a soldering iron again before long. But rather than just tidying up he ended up spinning his own circuit boards that make the screen look like it was manufactured to be used in this way.

He was able to mount the add-on board inside the LCD bezel, cutting out a space for the HDMI connector, barrel jack, trimpot, and the head of the inductor which was just a bit too large to fit inside. The trimpot allows him to adjust the LCD brightness. As far as we can tell the HDMI connector is just an easy way for him to deliver the drive signals from the Papilio board (FPGA) to the screen.

[Ben Heck] builds his smallest 360 laptop ever

[Ben Heck] is no stranger to building Xbox 360 laptops. Over the years he’s built dozens, but for this week’s episode of The Ben Heck Show he’s throwing down the gauntlet and building the smallest Xbox laptop ever.

The latest and greatest Xbox laptop build is based around the newest and smallest  $199 4 Gig Xbox. A few compromises had to be made to turn this console into a laptop, though: The power that would have gone to a Kinect was repurposed to power the very thin 15.6″ LED LCD, while the port that would power a hard drive was used to drive a perfboard stereo amplifier. You can check out the official [Ben Heck] blog post here.

The final build is extremely compact and much smaller than [Ben Heck]’s previous Xbox laptop builds. At just 2.125″ thick and 16 ” wide and 9 ” long, it’s quite possibly the smallest Xbox that’s possible to build. Without a new hardware revision from Microsoft (which seems unlikely at this point), this is probably the smallest an Xbox 360 laptop can be. We tip our hat to [Ben], and wish him luck in the next season of The Ben Heck Show.

Edwardian laptop from a steampunk master

After receiving a Marconi from [Admiral Aaron Ravensdale] informing us of the completion of an exquisite steampunk laptop, we were simply delighted. [The Admiral]’s computational device, or Uhlian Calculator as is the preferred nomenclature, is a remarkable combination of design and function suitable for any remarkable gentleman bent on the domination of the fast approaching electrical frontier.

[Ravensdale]’s new steampunk laptop is built off his first laptop, an old Toshiba Satellite 1100. Not a speed demon by any means, but the quality of this build is phenomenal. The hinged keyboard tilts up into an ergonomic position when the laptop is opened, reveling a set of six LED jewels for the power, battery, and hard drive lights. To the left and right of the screen, a pair of miniature brass horns contain a set of stereo speakers.

The keyboard is an awesome modification of the stock keyboard very reminiscent of [Admiral Ravensdale]’s previous keyboard steampunkification.

[The Admiral] put up an Instructable going through the many hours he put into this fine piece of craftsmanship. There’s also a video showing the keyboard lifting mechanism and skeleton key power switch available after the break.

Continue reading “Edwardian laptop from a steampunk master”

Laptop touchpad as a standalone peripheral

[Viktor] is working on salvaging parts from a dead laptop. In his eyes the biggest gem to be had is the touchpad, so he set out to see if he could make the touchpad a standalone device. You might be envisioning the many hells of interfacing this with a microcontroller and writing firmware to measure and translate the input to HID compatible commands. The good news is it’s quite a bit simpler than that, with just one gotcha.

He looked around to see what he could find about the chip that drives the touchpad. He couldn’t locate an exact match, but a datasheet from a similar family of controllers make him think that there should be a PS/2 data and clock output from the chip. After probing the test points on the board he found them, as well as the voltage and ground rails. Above you can see he soldered an old mouse cable to the board and it works when plugged in.

But we did mention the gotcha. There doesn’t seem to be any support for the right and left buttons. Those were housed on a flexible PCB which attached to the white connector seen above. That PCB also connected to the computer so we don’t know if they will work with this hack or not.

Ancient laptop given new life as mobile prototyping platform

What can you do with a broken Compaq SLT 286? Its briefcase-like size and shape actually make for a pretty interesting portable electronic prototyping station. [Philip] gutted the components and started adding back the items he most commonly uses when developing a project.

He shares all of the details in the video after the break. At center stage is a double breadboard where the keyboard would normally be found. It’s hard to make out in the image above, but there is a set of terminal strips running vertically to either side of these breadboards. Each terminal is connected to a peripheral or power/ground bus. The black knob to the left lets him adjust the output of a variable voltage regulator. To the lower right there’s a rotary encoder, push button, toggle switch, and a couple of potentiometers. These, along with the keypad and character display (mounted where the screen used to be) and DB connectors (on the back of the case) have their pins mapped to the terminal block to the right. [Philip] has mounted an Arduino Uno over the area to the bottom left, but we’re sure that it’s pretty easy to swap out for just about any breakout board he needs.

To answer [Philip’s] running dialog from the video: no, it is not the worst demo ever. We think you did a great job demonstrating all the features. Loose connections are par for the course when it comes to prototypes.

Continue reading “Ancient laptop given new life as mobile prototyping platform”