WS2811 on Steroids 

It's an absolute pleasure and honor working with Leo...

I'm very glad to have found your channel - you have some of the best actual engineering work I have seen on youtube.

Thank you for taking the time to document the project and the beautiful circuit design, it was a joy to watch and learn 😄

Very clever use of the chip! Always fascinates me when someone thinks outside of a box and use parts in a new way. Good job!

You have a very easy to follow and clear talking voice. You seem to take the time and don't rush the words out.

love the simplicity of the design and its complexity at the same time. Thank you for sharing.

This just motivates me to keep learning electronics. I loved this! From 0 to completion of a project, the detailed explanation of the circuit, the pace of the video. Gosh, I didn't even feel it like 14 minutes!

It's amazing that you share your trade secrets like that, but also very much appreciated

I really enjoyed the video! I love LEDs and tinkering with addressable, but I only wish I understood these things 1/10th as good as you! But hey, at least I'll watch it several times and pick up what I'm able... I also subscribed to your channel because I want to try to learn more. Your talents are admirable. PS - For a chip that's higher than 8-Bit and better dimming effects, maybe the GS8208 with 12-Bit Gamma Correction would've been more seamless? UCS even came out with a 16-Bit chip called the UCS8903, but I think it was only released a year or two ago.

Brilliant! Love the simplicity of this. Been building a system based around these chips and RS485 transceivers for a few thousand LED project. This will fit in very well with that community art project. I've going to try making a Warm White/Cold White dual channel module based on your ideas and see how they play out. Love using standard protocols like this as it means you can use off the shelf lighting control systems and hand that side over to the artists. :)

Fascinating explanation. For me there's a lot to unpack here but your explanation is an excellent guide to me. Thanks for taking the time. For what it's worth, this style of video is much appreciated!

Awesomeness. Well done, Leo. Fantastic video. The installation is so beautiful :)

Great voice and narration

Transition to brightest in the cycle evokes physical sensation in me.

Cool! I've been looking into making my own individually addressable bollard lights to place throughout the yard.

Its one of those projects where if you have a few of something its just boring, but when you have a hundred or more you can do amazing things with it.

Lovely project. Though you never explain the advantage of using that LED controller chip. Cuz it's pennies? Could've used a µC with a higher-res PWM and saved, what, up to 1/2 W heat dissipation? I know...always a million ways to do stuff like this...

Very nice project !

thanks for the tips!

This is brilliant, thank you for sharing. I wonder whether it would also be possible to just use the voltage to current approach, but just mix two PWM ouputs ( like in a dac with weighted resitors) 🤔. Also why did you choose the bc807 as a output transistor? (I assume the relatively high collector current?)

Very Elegant and optimized solution!

Thanks !!

Curious - why the digging for the wires? Where I live, lots of cables are quickly plowed into the ground. Quicker, cheaper and the grass is almost not affected. Was there lots of stones in the ground blocking the use of cable plows?

WOW. I was just wondering how to use this chip to drive higher currents, thanks

Impressive design

..how do I implants these chips to make each solar cells more efficient in serial connections..? Hopefully it could handle heat ...

Thank you for the incredibly detailed video It gives me a lot of inspiration. I'm curious about something. It seems like choosing to use a bite for duty cycle and another bite for current is over the complicated. Did you consider using all three bites for the duty cycle and performing some sort of gamma correction and software? Thank you for the time you've invested in this wonderful video.

6:04 "Prameter"

How do you individually address each unique fixture?

@9:59 I don't fully understood how R3 and D1 was able to turn Q1 off. I would expect at most 11.2 V at Q1 base, therefore producing around 20mA at output (Assuming max duty for OUTR). I also checked some basic simulation, and no successes turning Q1 off. Can you help me shed some light on it, please?

Seems like a lot of work to "hack" the WS2811 to do the job when a microntroller could have done the same and cost the same. And then run all devices on RS485 alone.

wouldn't art-net through WiFi with a ESP8266 or ESP32 be enough for the data transfer?

Holy crap that was a lot of work reinventing the wheel. You could have just built a wireless DMX system to talk to DMX-ws2811 nodes. It's all of-the shelf, plug and play gear. Programming time would be about 6 minutes with a professional lighting controller talking to a DMX recorder. Easy peasy.

Life is too short to still be putting up with 8 bits of anything.

A simulation and link to the circuit on www.falstad.com/circuit/circuitjs.html would be awesome :-)

where is the funy wensheng

Thanks I need your brain though

Though a clever use of the IC, i have to say it was a total waste of time. There are 8 pin IC's dedicated for doing this very thing.

It's such a shame when really clever guys work together as a team, solve problems creatively. Some of the Redl lights are so well thought out and executed. But the end project here is only a vanity exercise in consumer waste. I mean so much of the world has no reliable lighting at all, yet here a massive expenditure and effort produce some wonky candy bars wrapped around ornamental trees. Like oil dynasties and celebrities with their gold-plated baths and doorknobs.

you participate to destroy butterfly and moth, by using artficial light, same as the city made, by disturbing their false perception of daylight. Nice electronic project, but artist view is not alaways compatible with nature respect.

Nice for F-ing up the local eco system

Just looking though the comments below, lot of wifi fans. Radio based systems bring their own issues, including permits for anything not WiFI and of course, what EMI might be present that made a radio based choice unreliable with the timings you needed? I am an old radio tech and can vouch for the radios not always being 100% and no clash management other than peoples discipline with the radio transmitter. @leosbagoftricks - although not mentioned, did you do an RF survey of the area?

There was another channel that did something like this. Was there a multi vendor "quoting" round for this stuff????

А легкий газ? - Охладитель - радиатор. Мощность возрастет многократно.