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General purpose MCUs built in to LEDs emulate candle flicker

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Re: General purpose MCUs built in to LEDs emulate candle flicker

#41

It might be a myth, but I seem to remember the ASICs used to flicker older LED designs were often repurposed from audio greeting cards. The light was actually just Happy Birthday playing through an LED or bulb rather than a speaker.

Not a myth. I clearly remember watching a YouTube video where this was discovered, only a few years ago, but of course the uselessness of search engines these days has made it impossible to find now.

[deleted]

Re: General purpose MCUs built in to LEDs emulate candle flicker

#43

It might be a myth, but I seem to remember the ASICs used to flicker older LED designs were often repurposed from audio greeting cards. The light was actually just Happy Birthday playing through an LED or bulb rather than a speaker.

Not a myth. I clearly remember watching a YouTube video where this was discovered, only a few years ago, but of course the uselessness of search engines these days has made it impossible to find now.

[deleted]

Re: General purpose MCUs built in to LEDs emulate candle flicker

#45
post #32

If you'd like to see this and more in software for flashlights please visit toykeeper's projects! https://github.com/ToyKeeper/anduril https://toykeeper.net/ I loved this feature on my flashlight and used it exclusively on candle mode. There's a lot of thought that goes into it like PWM speed or direct drive for LEDs that may or may not cause flickering and a tradeoff between battery life and the electronics availabl…

I'd rather they didn't, I recently upgraded our household flashlights and was pleased to be able to get 3-mode rather than the ridiculous 5 and 7 mode that they were replacing, no more having to loop through 'SOS' and several ridiculous flash patterns, a half-dozen brightness settings and so on to get to the 'full brightness, no flashing' setting that was needed 100% of the time.

Re: General purpose MCUs built in to LEDs emulate candle flicker

#46

Earlier quoted context omitted.

The worst offenders right now might be disposable vapes. I saw some sold with effing lcd screens built-in. For a disposable piece of crap.

I'm waiting for the EU to ban these fucking things already. That and disposable power banks. Yes, you read that right. Selling consumer devices with Li-Ion batteries that are designed to not be rechargeable, should be banned altogether.

Interesting thing about li-ion batteries, is they have much less lithium in them than disposable lithium coin cell batteries, and hold much more charge. If we're outlawing disposable li-ions we should outlaw those as well.

Re: General purpose MCUs built in to LEDs emulate candle flicker

#47
post #19
post #14

Earlier quoted context omitted.

One car has 4,500 cells - bigger cells than most of the vapes. So it really is a matter of scale.

How many cars does one smoke in a year though?

The kind of people who can afford to buy EVs buy a new car what, every 3 years? So I guess about 1/3 of a car (or, using the numbers from another comment, about 4000 vapes' worth).

Re: General purpose MCUs built in to LEDs emulate candle flicker

#48
post #33
post #23

I really hate these fake LED candles with a passion. Either put an actual candle on the table, or just put a small cosy light that doesn't flicker.

Why? Ive known several people that died from candles including the actions of other people's usage of candles.

Not to mention that whenever I light a candle, my air filter spins up and my air quality monitor says pm2.5 peaks.

Re: General purpose MCUs built in to LEDs emulate candle flicker

#49

Earlier quoted context omitted.

The worst offenders right now might be disposable vapes. I saw some sold with effing lcd screens built-in. For a disposable piece of crap.

I'm waiting for the EU to ban these fucking things already. That and disposable power banks. Yes, you read that right. Selling consumer devices with Li-Ion batteries that are designed to not be rechargeable, should be banned altogether.

We're OK with disposable alkaline batteries, so what makes lithium worse? If anything, alkaline batteries might have a slightly worse environmental footprint due to the use of manganese.

The problem with lithium batteries is that they can catch on fire, but that's a problem only when charged (or charging). A fully discharged battery shouldn't do much.

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