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Overclocking the Raspberry Pi Zero / Zero 2

As my OctoPi installation was a bit slow on my RPi Zero I wanted to try overclocking it. I found a lot of different reports about overclockability and temperature, so I did some measurements myself. Make sure your CPU governor is set correctly Otherwise you CPU will not clock to the maximum clock speed youContinue reading “Overclocking the Raspberry Pi Zero / Zero 2”

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Booting up OctoPi fast(er)

OctoPrint is awesome, but especially if you use a Rasperry Pi 0 you want to make it boot up as quickly as possible. Here’s what you can do. I compiled this from different sources on the internet, e.g. this. Warning: Make sure you have OctoPrint up and running and make a backup of your SDContinue reading “Booting up OctoPi fast(er)”

Overclocking SD cards on the Raspberry Pi

Warning: Overclocking SD cards can corrupt your data and possibly damage your SD card! If you want better SD card speed and have an UHS-1/3-capable SD card, you can make the Pi run it with more than the standard of 50 Mhz. I tried this with a Rasperry Pi 0 (the non-W variant) and aContinue reading “Overclocking SD cards on the Raspberry Pi”

Running GUI applications over SSH on a Raspberry Pi

Sometimes you have a RPi attached to a screen, but no keyboard or mouse attached and want to run GUI applications on it via SSH. This will also let you cross-compile RPi applications on a development machine and test them on the real machine. Prepare the RPi for ssh access To enable SSH access onContinue reading “Running GUI applications over SSH on a Raspberry Pi”

Hiding the mouse cursor in Kodi

I use Kodi with a touchscreen and wanted to hide the mouse cursor, but NOT disable mouse input. This can be done by using a 1×1 transparent PNG file as the mouse cursor. Find out what skin you’re using and where your skin directory is. For me this is “estouchy” and its directory is /usr/share/kodi/addons/skin.estouchy.Continue reading “Hiding the mouse cursor in Kodi”

Properly setting up a 5″ HDMI touchscreen for Kodi on Raspbian

Wow. This was a royal pita. I wanted to build this wake-up-light-alarm-clock-media-thingy for my girlfriend. Well, I got my hands on a RPi Zero and needed an LCD display. I found this nice-looking “WaveShare 4″ IPS display” on Ebay and spent days trying to get it to work properly. You want a hint? DONT DOContinue reading “Properly setting up a 5″ HDMI touchscreen for Kodi on Raspbian”

Adding backlight control to a 5″ HDMI screen (and Kodi)

So the screen from here is working in Kodi now (LCD datasheet / pinout), but it draws a lot of power when the backlight is on (~200mA extra). We want to turn at least the backlight off, leaving the touchscreen active so we can interact and wake it up again. Buuut the LCD has noContinue reading “Adding backlight control to a 5″ HDMI screen (and Kodi)”

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”

Installing and switching gcc/g++ versions in Debian

Installing newer gcc/g++ versions is easy: If your system does not provide the new versions, you might still be able to get them via a different repository. Add the toolchain repository to your system and update your sources: Now you should be able to install gcc/g++. The real problem comes after that. How to makeContinue reading “Installing and switching gcc/g++ versions in Debian”