Technology

58303 readers

10 users here now

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

Our Rules

Follow the lemmy.world rules.
Only tech related content.
Be excellent to each another!
Mod approved content bots can post up to 10 articles per day.
Threads asking for personal tech support may be deleted.
Politics threads may be removed.
No memes allowed as posts, OK to post as comments.
Only approved bots from the list below, to ask if your bot can be added please contact us.
Check for duplicates before posting, duplicates may be removed

Approved Bots

founded 1 year ago

MODERATORS

[email protected]

934

Why It Was Almost Impossible to Make the Blue LED (youtu.be)

submitted 9 months ago by [email protected] to c/[email protected]

201 comments fedilink hide all child comments

The blue LED was supposed to be impossible—until a young engineer proposed a moonshot idea.

you are viewing a single comment's thread
view the rest of the comments

[–] [email protected] 15 points 9 months ago (2 children)

I wish I could say the same. I have had one of two that had circuits that burned out. One was cheap and not surprising. The other was a Hue. Speaking of Hues, mine all seemed to stop working with Google Home and one even decided it would permanently be disco time and continually flashes. Zigbee compatible bulbs only from now on for me.

[–] targetx 13 points 9 months ago (1 children)

Aren't all Hue bulbs Zigbee? They have some WiFi or bluetooth models now I believe but afaik all of them support Zigbee with a bridge.

[–] [email protected] 1 points 9 months ago

There was encryption for a while, iirc. This was removed, and you can now communicate directly with Hue bulbs.
You can also use bluetooth for hub-free operation directly from a phone.

[–] [email protected] 4 points 9 months ago

The leds can work for like 20 years. On the other hand the rest of the components are not necessarily going to last that long unfortunately.