Posts in 2024
  • Router overclocking

    Sunday, March 24, 2024 in Hacks

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    Real gaming router This is part 2 of the “Real gaming router” series of blog posts. Read Part 1 / Real gaming router first. Why? If you’ve seen part 1 of the “Real gaming router”, you know that the game performance in …

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  • Real gaming router

    Sunday, March 03, 2024 in Hacks

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    Update, 18th March 2024 Read Part 2 / Router overclocking for an update on performance. What is it? A TP-Link wireless router, with an external AMD Radeon GPU connected via PCIe, running Debian Linux and playing games: What makes this router so …

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Posts in 2023
  • NVMe BIOS Option ROM

    Tuesday, October 31, 2023 in Computing

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    What is it? The NVMe BIOS Option ROM is a heavily modified version of iPXE, which can be integrated into a computers BIOS (or provided via a PCI card, USB flash drive, SD card, etc.). It allows x86 computers to boot from NVMe devices attached via …

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  • Blinkekatze

    Tuesday, October 10, 2023 in Art

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    Wild Blinkekatzen in their natural habitat What is it? Blinkekatzen are a replacement PCB for commercially available silicone LED lights. The lights usually contain a battery and some RGB LEDs in a cat shaped housing. Blinkekatzen expand on this …

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  • ThinkPad T41/T43 USB-C

    Wednesday, September 13, 2023 in USB-C mods

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    What is it? USB-C PD trigger board with integrated high-power Step-Down converter to 16V. This board will negotiate 20V, 5A (100W) against a USB-C PD power supply and convert the bus voltage into 16V. This can be used to power various laptops like …

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  • HomeSwitch 4

    Friday, July 28, 2023 in Network

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    What is it? HomeSwitch-4 is a small, low-cost, open hardware, USB-C powered 4-port Gigabit ethernet switch, running OpenWRT. It’s VLAN-capable and can handle simple VPN and routing applications (CPU connected via 100 MBit/s). It uses a cheap …

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  • DC UPS (Lithium)

    Saturday, July 01, 2023 in Network

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    What is it? DC UPS is a lithium battery-powered uninterruptible power supply, which can provide backup power to devices like routers, switches, modems, single board computers, etc. In contrast to commercially available UPSes, it uses off-the-shelf …

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  • OLED nametag

    Saturday, June 03, 2023 in Art

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    Features Bright, sunlight readable OLED display Infinity constrast ratio Support for GIF animations WLAN AP support Web interface for management of animations Automatic brightness adjustment 8h+ runtime Links Hardware: KiCAD design files Firmware: …

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  • Thermal camera macro

    Monday, May 29, 2023 in Tools

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    What is it? 3D-printable adapter, which fits into commercial thermal cameras and adds a 18mm ZnSe CO2 laser lens to the optical path. This greatly improves the imaging quality on small electronics / SMD parts. Before / After Sample photos of PCB …

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  • LPT printer emulator

    Wednesday, April 26, 2023 in Retrocomputing

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    Warning: While this project does work and has been tested against a number of devices, the firmware is very quick & dirty with hardcoded parameters and missing error handling. Use in production environments is discouraged. What is it? Old …

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