Simple Game Boy Advance micro USB / USB-C Li-ion battery power supply aka the “CheapJuice”

Don’t be mistaken, the CleanJuice v1.1 or Retro Modding Rechargeable Battery Pack Game Boy Advance USB-C power supply are well-thought-out solutions. They’re almost “drop-in”, need minimal modifications to the GBA and keep the battery compartment intact so you can still use AAs. But they’re also relatively expensive, especially if you don’t live in the US.Continue reading “Simple Game Boy Advance micro USB / USB-C Li-ion battery power supply aka the “CheapJuice””

Coreboot for the Lenovo T420 / T420i with Ivy Bridge support

Usually I tend to decline offers for old laptops, because I have too many projects anyway, but when a friend offered me a broken T420, I thought “Hmm, good opportunity to try out Coreboot…”. Because, why not?! The laptop The device arrived in a sad state: It was dirty, had old stickers on it, itsContinue reading “Coreboot for the Lenovo T420 / T420i with Ivy Bridge support”

Properly (passive) cooling the Toshiba Z20t-C / the Intel m7-6Y75

The Toshiba Z20t-C is a really nice, silent convertible with a long battery runtime. It’s CPU is held back though by cooling issues. The Intel m7-6Y75 performs especially bad, running even slower than its cheaper m5-6Y57 / m5-6Y54 counterparts due to cooling. Though the CPU could clock at 2.9 GHz for two loaded cores, itContinue reading “Properly (passive) cooling the Toshiba Z20t-C / the Intel m7-6Y75”

Setting up the XYZ Da Vinci 1.0A 3D printer with RepetierHost and Slic3r on Ubuntu

I finally bought a 3D printer. It’s a used one and entry level, but printing parts is good fun. Here’s how to set it up on Ubuntu 14.04: Install Repetier firmware The new firmware will give you much more control over the printing process. Mine was already installed (v0.92), so I upgrading to the 0.92.10Continue reading “Setting up the XYZ Da Vinci 1.0A 3D printer with RepetierHost and Slic3r on Ubuntu”

Building a mobile magnet lamp / flashlight from repurposed parts

I needed a mobile “flashlight” in my car you could simple attach somewhere to the chassis where you’d need it. The are plenty of offers on the interwebs, so could have simply bought one, but I (as usual) had some parts lying around…I had: A spare 12Wh Li-Ion battery left over from my Kodi carContinue reading “Building a mobile magnet lamp / flashlight from repurposed parts”

Building a Kodi in-car entertainment system using a Motorola Atrix Lapdock and an Odroid C0

Watching movies in the car is great fun. It is even better when you have a camper and lie in your comfy sleeping bag – I needed an in-car entertainment system.I have a stereo in the car already that can even play videos, but the screen is small, codec support is limited and it isContinue reading “Building a Kodi in-car entertainment system using a Motorola Atrix Lapdock and an Odroid C0”

tl;dr – Reviving an Acer Aspire 3820 TG with a broken BIOS chip

Man, was I screwed. I had this awesome laptop with a diy keyboard backlight and then it died on me just after the (already voided) warranty had expired and new mainboards were ~200€…It all started when I noticed that my ATI Radeon 5650M GPU had vanished in Windows, so I tried to reboot, enter theContinue reading “tl;dr – Reviving an Acer Aspire 3820 TG with a broken BIOS chip”

Arduino Leonardo as a MAME interface

UPDATE: I made the thing a project on GitHub. You can find information and can download the source code for the Arduino and PC programs from the project page. Ok. So I found this old arcade cabinet for 1,50€ 😀 on Ebay and managed to carry it up the stairs. Looks dandy and even hasContinue reading “Arduino Leonardo as a MAME interface”

Setting up an Arduino + LPD8806 ambilight using boblight with XBMC on Ubuntu

An Ambilight is a great thing – if it works. I want to write about some of the hoops I had to jump through to make it work. This is very Linux-specific, but you might take away something for other configurations too… Here is the original adalight tutorial, which I used to get this workingContinue reading “Setting up an Arduino + LPD8806 ambilight using boblight with XBMC on Ubuntu”

Adding a “proper” keyboard backlight to an Acer Aspire 3820TG notebook

This thing started long ago when I got the laptop. I love it, but it really lacks a backlit keyboard. There was one excellent thread with people presenting solutions (add tiny switches, soldering to the bluetooth connector, to the USB breakout board etc.), but I found none of them really satisfying. I decided to voidContinue reading “Adding a “proper” keyboard backlight to an Acer Aspire 3820TG notebook”

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