Blog
Writing about things I build, learn, and tinker with.
My Boot Took a Minute, and My Monitor Was the Reason
A four second log message I almost wrote off as harmless turned out to be costing me twenty seconds of boot time on every single startup, and the actual cause was sitting inside my monitor the whole time.
Adding and syncing an LED Strip to the Xiegu G90's Display Backlight
Adding a front-panel LED strip to the Xiegu G90 that dims in sync with the display backlight. Plus a debugging detour into why the first MOSFET I tried left it running dim, and what the datasheet actually said about it.
How to Build a 4S2P 32700 LiFePO4 Battery Pack with a 3D Printed Frame
A complete build guide for a 12Ah 12.8V LiFePO4 pack using eight 32700 cells and a set of printed parts you can download and run as is. Covers printing, spot welding with the included jigs, wiring the BMS, assembly and finishing.
Reverse Engineering the Dahua DVR API
How I probed 106 undocumented RPC2 services on a Dahua XVR to build a working Python client from scratch.
Rekonstrukcija PECKO chat bota
Negde oko 2000. godine, Predrag Damnjanović Peca iz Niša napravio je chatbot koji je radio na DOS-u i zvao se Pecko. Preuzeo sam ga sa mycity.rs sajta koji, između ostalog, vodi i sam Peca.
Kids ride on car
Our kid's ride-on car died completely. Store could not help, so my son and I fixed it ourselves. Here's how we tracked down a burned-out diode and brought it back to life.