this post was submitted on 01 Apr 2026
86 points (96.7% liked)

Technology

83295 readers
3690 users here now

This is a most excellent place for technology news and articles.


Our Rules


  1. Follow the lemmy.world rules.
  2. Only tech related news or articles.
  3. Be excellent to each other!
  4. Mod approved content bots can post up to 10 articles per day.
  5. Threads asking for personal tech support may be deleted.
  6. Politics threads may be removed.
  7. No memes allowed as posts, OK to post as comments.
  8. Only approved bots from the list below, this includes using AI responses and summaries. To ask if your bot can be added please contact a mod.
  9. Check for duplicates before posting, duplicates may be removed
  10. Accounts 7 days and younger will have their posts automatically removed.

Approved Bots


founded 2 years ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
[–] partial_accumen@lemmy.world 1 points 1 hour ago (1 children)

Low power draw but ridiculous power supply requirements of 5V5A (depending on the model) with a USB-C connector which isnt a thing outside of this specific application meaning they’re going to be expensive and hard to source.

That's only for the Pi 5 (the highest end unit), and I'll agree that at that level its hard to justify a Pi over a larger computer. Even for the Pi 5 its not that hard to find those Power Supplies. Most laptops today use power supplies that meet or exceed those specs. You're right that those are more expensive than Pi 4 and below Power Supplies.

They should have just done a barrel plug or put an effing voltage regulator on board like Arduinos.

Again, no defense of Pi 5 from me. However, for everything below Pi 5, HARD PASS on a voltage regulator. I don't want that heat in the tiny Pi case. At the lower power requirements of Pi4 and below USB power is fine.

[–] CmdrShepard49@sh.itjust.works 1 points 13 minutes ago* (last edited 7 minutes ago)

Most laptops today use power supplies that meet or exceed those specs.

Non those are USB-PD power supplies that increase voltage up to 20V in order to deliver more power. No USB standard that I'm aware of offers 5A at 5V.

As far as heat goes, these devices already need heatsinks and case fans, so the difference seems negligible.

Also, good luck using a Pi5 any further than 3ft from a wall outlet unless you want to rig up your own power supply using some 14/2 Romex with a USB C connector soldered to the end.