2 HN users recommended this tutorial2 months2020–2023score 2
Years with an HN recommendation, 2007–2026
Recommended as a practical way to get 12V or other voltages from USB-C for hobby projects.
Kenneth Finnegan shows how USB-C Power Delivery trigger boards like the ZY12PDN negotiate 5V to 20V so you can power projects from a USB-C charger, including the color coding for each voltage.
[this video] I found this video just today about USB PD "trigger boards" or "decoy modules" in the ali express/ebay/amazon searches. There seem to be some you can short a resistor on for a locked setting, or others like in the video that have a mode select.
Explains PD trigger boards with selectable voltage modes
These little boards are ultra handy: [this video] Rip the barrel plug off of things and replace it with USB-C input, or make your own USB-C 'dongle' to power anything that needs 12v.
Shows how to power anything at 12V from USB-C using small boards
I'm using ZY12PDN USB-C PD boards ( [this video] ) About point 2, IMHO, better a jumper to disable programming mode than having to obstruct the sensor.
Shows the ZY12PDN USB-C PD trigger board the commenter uses
Video list and Hacker News comment labels from HackerTube (prompted by @karpathy), released under ODC-By 1.0, built on the open-index/hacker-news archive. Hacker News data is provided by Y Combinator; comments remain the work of their authors. Video titles, channel names and thumbnails belong to their creators and are shown via YouTube. HackerTube Watch is an unofficial edition. Data export of 2026-10-31.
3 Hacker News comments
From the HN archive; up to 20 kept per video, favoring different commenters. Recommendations first.
Citations, criticism and jokes