Tasmota: WS2811

[Gary202]

Will WS2811 led strips work with the WS2812 selection?

[chepa92]

I'm trying to get it work, no luck.
I'm not a programmer :)

[arendst]

It probably won't work as the timing is different between WS2811 and WS2812.

Perhaps you find more info on the NeoPixelBus library forum used in Tasmota and provides the WS2812 drivers.

[joecotton]

Likely the only difference is how the NeoPixelBus object is instantiated. The xdrv_ws2812.ino file, lines 27-39. Try changing Neo800KbpsMethod with Neo400KbpsMethod

[chepa92]

That what I did, not working
NeoEsp8266BitBang400KbpsMethod and Neo400KbpsMethod

[chepa92]

Maybe problem in low voltage?

[chepa92]

I've added 4.7k on the gpio14 can this be a problem?

[Adminius]

try to use GPIO3

[chepa92]

not working, same reaction

[Adminius]

are they are working without Tasmota? e.g. with NeoPixelBus test sketch only?

[chepa92]

Didn't tested on sonoff, on arduino mini its working well

[Adminius]

328p is not ESP8266 ;)

1. Try it on any 3.3V Arduino
2. Try it on any ESP8266
3. Try it with another Lib (e.g. Adafruit NeoPixel)
4. Different modes: DMA, UART, Bitbang...

[skatun]

Did anyone get it to work?

[chepa92]

nope

On Thu, Nov 16, 2017 at 1:41 PM, Skatun [e-mail] wrote:

Did anyone get it to work?

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[eogmau]

see here how I have them working on tasmota
https://github.com/arendst/Sonoff-Tasmota/issues/1690

Edit: fixed link

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[markcarline]

Anyone else having issues with WS2811? This is a circuit diagram and parts list of my setup. I'm wondering if I can use Tasmota in my setup rather than the code in his example:
https://github.com/bruhautomation/ESP-MQTT-JSON-Digital-LEDs

Colours don't work, dimming isn't working. Other sketches like the one in GitHub work fine.

Edit: I wonder, I am using a Wemos D1 Mini & Pro which have 80mhz, specs are here:
https://wiki.wemos.cc/products:d1:d1_mini#technical_specs
Is this a timing issue?

[ascillato]

Hi, please, could you test the solution on https://github.com/arendst/Sonoff-Tasmota/issues/1690 ?
Thanks

[markcarline]

Also is there any reason why fast LED isn't included in Tasmota? It would be a great addition and I've seen it used in a few other uses and seems to have good compatibility

[arendst]

Life is all about choices. Shall I buy a car or would a bicycle do too? I choose for the bicycle as it gets me there too.

[markcarline]

So yes, I tested the changes in:

https://github.com/arendst/Sonoff-Tasmota/issues/1690

Of editing user_config.h and no change.

The issue seems to be related to communication rather than a mix up of RGB colours.

Shall I open a separate bug report ? It does relate to WS2811 12v strip though, wired up like:

https://github.com/bruhautomation/ESP-MQTT-JSON-Digital-LEDs/blob/master/ESP%20MQTT%20Digital%20LEDs%20Wiring%20Diagram.png

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[skatun]

I got it to work without any modifications on a wemos mini, however colors are wrong, rbg, which seems to be standard for ws2811, either fix it in ur sketch or handle it in the smart home software. I did mention for @arendst that we maybe should add ws2811 as a sensor option where the colors are swapped compared to ws2812..

[ascillato2]

Hi,

@skatun

You said that colors are swapped but you did not specify which ones?

[ascillato2]

Hi,

@skatun

Can you share your configuration and your results?

[ascillato2]

Hi,

Closing issue as there is no feedback. Please, when you have time, share your findings. Thanks.

[skatun]

@ascillato and @arendst , sorry I was away for the last 2 weeks. So I have tested with 4 different suppliers of ws2811 ledstrips and they all seems to be rbg coded in comparison to ws2812 that the user can select from the drop down menu, so my suggestion was to add ws2811 to the drop down menu. Can you point me out how to do this? The code that I use to fix this currently is:

Which then is defined in the user config as
#define USE_WS2812_CTYPE NEO_RBG // WS2812 Color type (NEO_RGB, NEO_GRB, NEO_BRG, NEO_RBG, NEO_RGBW, NEO_GRBW)

But I would like to have it defined through the tasmota webpage, because if I autoupdate the software this manual setting will be lost. It is also easier for beginners, because then they dont have to fiddle around with the arduino code..

[arendst]

Won't work as the NeoPixelBus library inits it's space and Color type during compile time.

[skatun]

@arendst How did you do it for the ws2812 type that you can select then? Why would ws2811 be different from the same approach? Maybe I am missing something

[arendst]

For the WS2812 you will have to re-compile if you need another RGB sequence.

[skatun]

@arendst For the WS2812 you will have to re-compile if you need another RGB sequence.
This is exactly what I ment for WS2812 the sequence is RGB, for WS2811 the sequence is RBG, so if we add this option to the drop down meny we have two hardcoded strips that will cover 90% of all strips on the market. For those using the rest 10% we will leave it as it is today.. Or add optional configuration as you do have for some of the other sensors

[skatun]

I am not a programmer expert, but why is it not possible to copy the ws2812 sketch to ws2811 and change that one line to #define USE_WS2811_CTYPE NEO_RBG, can you please clearify why that is not possible?