Worlds smallest USB-C Li-Ion charger I stumbled upon these incredibly tiny USB-C Li-ion chargers on AliExpress and couldn't resist checking them out! These minuscule PCBs, just 10mm x 6mm, feature the LP4054 (or TP4054) linear battery charger. With a 1.65K programming resistor, they offer a charging current of around 600mA. Keep in mind, they can get pretty toasty, reaching up to 92-93C! For fun, I tried recreating them in KiCad and found it surprisingly easy. 16 July 2025
Hue Light Hack In a fun-filled deep dive into a Philip's Hue Color light bulb, I disassembled, analyzed, and ultimately restored it to working order. Over the course of the hack, I dismantled the bulb’s interior, from the aluminum PCB to the tiny ICs on the logic board, gave a detailed breakdown of their functions and even reverse engineered the signals controlling the colors. Most of the colors worked out pretty well, except for the dodgy yellow. Also, I tried running the hacked bulb setup with my old Moonlamp project. It was a great challenge and an exciting journey! 04 May 2023