Re:USB Power Delivery for Hobby Projects
by adhesive_wombat on Sunday October 29, 2023 @05:37AM
(#38057013)
Which PD module do you use?
Re:USB Power Delivery for Hobby Projects
by eternityforest on Sunday October 29, 2023 @05:52AM
(#38057064)
I think they're pretty much all unbranded and look similar, but now there are some with through hole outputs instead of pads to solder wire. If I didn't already have a stash I would probably get those and some right angle male headers.
Just watch out, 12v isn't a thing anymore in the new specs and might not work, best to build around 5v, 9v, 15v, or 20v.
Although usually if I just need 5v, I'm building around a D1 Mini ESP32 module that already has 5v built in.
I saw one in a YouTube build video that allows you to select output voltage / what it will negotiate using a pushbutton, the selection is indicated by the color of an LED (and hopefully persisted when powered down).
Edit: the one chx linked to above is precisely of this kind
Re:USB Power Delivery for Hobby Projects
by adhesive_wombat on Sunday October 29, 2023 @07:52AM
(#38057650)
A unique twist on this is a module that is programmed by a flashing light, for example a web page with a flashing image: https://hackaday.com/2021/04/21/easy-usb%E2%80%91c-power-for...
Re:USB Power Delivery for Hobby Projects
by Flameeyes on Sunday October 29, 2023 @09:10AM
(#38058263)
That _was_ my first choice, to be honest, but the device (and the chip itself) was unobtanium at the point I was looking at it.
Re:USB Power Delivery for Hobby Projects
by CosmicBee on Sunday October 29, 2023 @07:41AM
(#38057595)
I'm not the parent but I'm a fan of WeAct's modules. https://www.aliexpress.us/item/3256803150519042.html
Fairly cheap but easy to configure with the dip switches and the boards I've been sent have been high quality with good solder joints.
Re:USB Power Delivery for Hobby Projects
by MrBuddyCasino on Sunday October 29, 2023 @05:58AM
(#38057093)
Same, I always have a few ready to use. Can’t wait for 48V USB to kill the remaining barrel plug usages.
Re:USB Power Delivery for Hobby Projects
by bmicraft on Sunday October 29, 2023 @12:40PM
(#38060259)
I've know about EPR since the spec was release, but reading "48V USB" somehow still caught me a bit of guard because it just sounds cursed
I use it when it's 12V, it's probably most popular barrel plug voltage and also used in a lot of audio devices (aside from guitar pedals which have 9V with reversed voltage... fuck that)
Re:USB Power Delivery for Hobby Projects
by eternityforest on Friday November 03, 2023 @04:00AM
(#38125773)
-9v is semi-tolerable for legacy reasons, what's really bad is center-positive 5v on what looks like a 1.3mm or so plug, as found in a cheap wireless DMX system. Still beats wired DMX though.
The only time I use 2.1mm is when I'm going to daisy chain or do something besides point to point, when I'm doing solar, or when I'm using the connector for something other than power(A voltage divider can protect your input from accidental power connection, so it's one of my favorite simple connectors).