What kind of LEDs are these? ("Twinkly" lights)

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Interesting (so EPS8266 not EPS32 in fact) but the analysis is still too "high level" and doesn't really seem to explore the actual LED type/source and the signalling / modulation etc.

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clawson wrote:
But during Covid what else are you going to spend $400..500 on anyway?

 

Well, not that I indulge personally... but I note that the Talisker on sale in the local Berlin supermarket is twenty quid a bottle cheaper than it is at the Co-op in Portree, round the corner from where they brew the bloody stuff!

 

Neil

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clawson wrote:
the "clever bit" is an ESP32

I'd have thought the really clever bit is in the phone - recognising where each LED is from the camera, and creating the pretty patterns ?

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clawson wrote:
the analysis is still too "high level" and doesn't really seem to explore the actual LED type/source and the signalling / modulation etc.

Indeed.

 

They're a security company - so their interest is the exposed APIs, and how they might be exploited

 

 

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As it happens, I've also been playing with some lights; not so impressive, but:

  

 

They were some RGB strips I had left over - not individually addressable;  the entire strip has the same colour.

 

I used an nRF52 to link to the phone; no fancy app - I just enter RGB numbers.

(I was using a different nRF board, but blew it up - hence all the jumper wires!)

 

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And I thought I was happy because I've managed to configure an OLED 128x64 panel correctly :)

 

Neil

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awneil wrote:
I was using a different nRF board, but blew it up

 

It would not be the holidays without a cloud of smoke.

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Cliff, you've got plenty of time on your hands - if you can post some REALLY clear pictures of the circuitry, we might be able to reverse engineer it or at least maybe get an idea of how it works. I gather you don't have an oscilloscope handy?

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Wait until after the holidays to take it apart.  S.

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Kartman wrote:
. I gather you don't have an oscilloscope handy?
Well that's an interesting question. Right back at the start of November when Aliexpress had their equivalent of "black Friday" I bought a Hantek DSO2D10. I've had confirmations of order and dispatch but no sign of it yet. Clearly it's coming by ship not plane but on a very slow boat from China. I don't think it helps that because of Brexit our ports are all currently blocked with huge backlogs so I'm guessing it's sat in a container somewhere. I think Aliexpress promise something like max 50 days for delivery but it could be getting near that now.

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-registered just to post this, so hi!-

When you map them the flash searingly random colours, I doubt this is coincidence.
I suspect the LEDs have an ID that is bitmasked on as a previous comment suggested. Then the mapping picks up that LED in the chain.

Would be interested to get a scope on them but I don’t currently have time (or access to a scope!).
If my above hypothesis is correct I wonder how they avoid clashes...maybe they program them as the chain is being constructed which would be quite easy at scale I guess.

I did look up the patents issued by this company but it was all just very general as patents tend to be!

I’ve got some photos of the controller (which is indeed an ESP32 in v2) I can post more but uploading them one at a time on my phone is a chore!

Attachment(s): 

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All you "Twinkly Light" folks are thinking way too "inside the box". To wit (Oh, I've wanted an excuse to write that for sooo long!):

 

Gordon Goose: Christmas Tree! / Funny christmas animated short film - YouTube

 

Jim

 

Until Black Lives Matter, we do not have "All Lives Matter"!

 

 

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"Think big" eh? 

 

(Gordon's typing technique looks familiar though!)

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Thanks for the photo. It all looks pretty simple - there's a dc/dc converter, the esp32 and not much else. My guess would be they are using WS2812 or AP102 style smart leds which would make it easy. How many wires go to each string of leds? There was mention of two wires - that makes it trickier.

 

Cliff - I'm waiting for some stuff that's on a slow boat from China as well. I think Banggood and Ali Express need to negotiate cheaper delivery methods using DHL etc so we can get fast delivery at a reasonable price like when ordering pcbs from JLCPCB (not a paid plug BTW!).

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Just recorded a trial run of what the lights will be doing at midnight...
.
https://youtu.be/GgbwgNQyl0A
.
The opening is my interpretation of the EU flag to commemorate the death of the most important strategic alliance this country was ever involved in that very sadly ends at midnight too.

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Pretty cool!

 

Jim

 

Until Black Lives Matter, we do not have "All Lives Matter"!

 

 

This reply has been marked as the solution. 
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PS and if you wonder about the cars in the video join the club. Not just Essex but the whole of East Anglia and South East are now in Covid Tier 4 which means no unnecessary journeys should be undertaken so why 4 cars went past in about a minute and a half is anyone's guess!

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I almost tuned out at the 30-second point to go check the Covid news devil; after that, though very engaging, well done.

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Neat!

 

What's going on inside through the left window?  Looks like a screen, but in portrait mode?

"Experience is what enables you to recognise a mistake the second time you make it."

"Good judgement comes from experience.  Experience comes from bad judgement."

"Wisdom is always wont to arrive late, and to be a little approximate on first possession."

"When you hear hoofbeats, think horses, not unicorns."

"Fast.  Cheap.  Good.  Pick two."

"We see a lot of arses on handlebars around here." - [J Ekdahl]

 

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Last night (New Years Eve), I saw on BBC World News a bit on a light show projected onto the world's tallest building (in Dubai). That was spectacular. It had to have had a huge light power output, maybe from multiple machines. And, it had to have considerable graphics power behind it. Impressive!

 

Jim

 

Until Black Lives Matter, we do not have "All Lives Matter"!

 

 

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joeymorin wrote:

Neat!

 

What's going on inside through the left window?  Looks like a screen, but in portrait mode?


That would be our illuminated crib. Rather sadly many people have missed the whole point of what Christmas is about so it's just a gentle reminder to non-Catholics as to what it is we're celebrating ;-)
.
(Just wish my window frames were not rotting as this rather draws attention to the fact. 2020 was going to be the year of having the house painted and maybe even having the windows replaced but then it all went a little pear-shaped) .

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OK so I got a close up picture of the Holy Family... 

 

I also made a new video of the lights. I was installing a Tp-Link P9 mesh Wi-Fi system and lost contact with one of the Twinkly controllers so I had to reinstall / remap so I switched the lights from two synchronised sets to one big "scene" this means that things like "rotating rainbow" work particularly well... 

https://youtu.be/EHZysUwIwmI

Oh and I just watched a recording of the London new year fireworks and the thing with the drones shows the ultimate in "mapped lights"! 

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clawson wrote:

Oh and I just watched a recording of the London new year fireworks and the thing with the drones shows the ultimate in "mapped lights"! 

Holy CRAP!  That is a LOT of aerial LiPos!

 

What should we call it?  Firedrones?  Droneworks?

 

How >>many<< g-ddam machines are in the air, anyway!?

 

Three hundred, apparently:

https://www.google.com/search?q=london+2021+fireworks+how+many+drones

 

Here it is on YT:

https://www.youtube.com/watch?v=MpJIg_3DnLk

 

That was really enjoyable.  Leave it to the Brits to turn fog into an advantage :-)

 

clawson wrote:

OK so I got a close up picture of the Holy Family... 

I kind of >>like<< the rustic window look :-)

"Experience is what enables you to recognise a mistake the second time you make it."

"Good judgement comes from experience.  Experience comes from bad judgement."

"Wisdom is always wont to arrive late, and to be a little approximate on first possession."

"When you hear hoofbeats, think horses, not unicorns."

"Fast.  Cheap.  Good.  Pick two."

"We see a lot of arses on handlebars around here." - [J Ekdahl]

 

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OldMicroGuy wrote:
Not sure there is such a thing as wacky overkill when it comes to LEDs and RVs.

 

Dekotora perhaps?

 

 

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And that, children, is why we have this: https://www.legislation.gov.uk/u... cheeky

 

Neil

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