んんんん

スイッチング電源を手軽に使う試み

Every electronic makers will eventually make their own power supply of some sort, and here is my design ✨ (20V 3A input, 1.2v - 20v adj, 5A / 40W max, with automatic CV / CC mode)

おやすみ

🪦✌🦆 Duolingo

Me after getting a label machine:

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The final revision of my automatic reflow hotplate with reduced heat barrier height. It still works and no overheat after a few reflow cycles ✨

音速を可視化する実験をしました💫 準備した音に反応して光るセンサーは、なんと200個！ 秒速340mで光が走ります

Just got the PCBA prototype from PCBWay ✨ They really saved me tons of times for hand soldering those tiny components. (Before and after hand soldering)

New haircut 🙌

Not sure who are gonna need this, but I am working on a tool for managing disks on a remote server for my #homelab / #nas written in #golang 🙌

Photo-shoot session for my open source PD bench power supply ✨ (If you are wondering, the case is 3D printed with glass bed to make that shiny top surface)

New package design for WebStick v4 ✨

The WebStick v4 is now open source on Github and available to purchase on Tindie! Major updates include a new blog post engine and customizable homepage system, all hosted on a single ESP12E / ESP8266 chip! ✨

My open source 4xMacropad from 2023, still looks good by today standard 🙌

My first automatic reflow hotplate prototype from 3 years ago vs the latest version 🙌

Why the hack I have so many different versions of 10uF 🤔

This is kinda my go-to design for USB to UART adapter now 🙌 (type C + 5.1k pd sink + ch340C)

Temu (actually Taobao) UHU glue be like: