WS2812 and PWM at the same time?

[old-rotsch]

moin
I'm building a wall clock with WS2812 LEDs.
Question: can you configure WS2812 LEDs and 1-2 PWM outputs at the same time?
At the same time, I haven't got it to work yet.

[s-hadinger]

It's not supported. You could maybe control the pwm as channels and not light.

[quantenschaum]

How to do this? I can configure the module to use a WS2812 on one pin and another pin as PWM. The PWM does not appear in the web UI, but can I control it vie some commands? If then how?

[sfromis]

SetOption15 allows you to select "basic PWM control", with pins controlled by the PWM command. Don't know if it works at the same time as neopixels, but it is a plausible thing to try.

[quantenschaum]

I does not seem to work. pwm<x> yields RESULT = {"Command":"Error"} when one pin is configured as WS2812, no matter if SO15 is 1 or 0. LedPwmMode works, using LedPwmOn instead of Pwm (as workaround).

I would highly appreciate, if it was possible to combine a WS2813 strip with additional pwm channels (driving white strips). Or just to have a couple of independent sliders/channels using MultiPwm, 3 for the WS2812 and the others for the pwm pins.

[barbudor]

May be check 'setoption37 128'

[quantenschaum]

No, this does not work either. Using WS2812 seems to block all PWM functions completely.

[HoerMirAuf]

LedPwmMode works, using LedPwmOn instead of Pwm (as workaround).

Hi,

I know, it's a old Thread.
I want to use a WS2812 and a LED with PWM Dimming at the same time too.
But:
Configuring the GPIO to LED and setting to ledpwmmode 1, will result to fail colors an flickering on some LED's on the Neopixel WS2818.
Switching off ledpwmmode all went well with ne WS2812 neopixel

Is this a bug?

[ascillato]

Not a bug. As the selected answer explains, that combination is not supported in Tasmota. Sorry.

[sfromis]

With ESP32 (not ESP8266), you can have extra channels of both WS2812 and PWM, allowing you control outside of the regular light feature of Tasmota. I think that you'd be able to get what you want if configuring a PWM light the normal way, and have WS2812 channels above number 1, which you can control from Berry code only.

[HoerMirAuf]

Ok, thank you very much for your response.

Unfortunately I only have a ESP8266

What a pity. Thought it could be possible one year later ;)
... Unbelievable, something Tasmota can't do ;))

[sfromis]

You can get an ESP32 in the same form factor as the widespread ESP-12 modules, works for replacement in many situations, and not at all expensive.

[HoerMirAuf]

@sfromis .. thank you for this hint! Seems, a Wemos D1 Mini is replaceable with a D1 Mini ESP32.
Have ordered one to take a look.

[tasmotari]

Hi @HoerMirAuf, do you have a success with ESP32 + Berry scripting? How hard to setup this?

[Basti149]

ESP32
Something has changed in the meantime. Is it now possible to switch a WS2812 Leds+ PWM outputs. And all of this via the GUI with a slider or is it only possible via the console?

Would it be practically possible to control WS2812 Leds+ 16 normal PWM outputs?

ESP12
WS2812+ with a single PWM output. is this possible now If I define the WS2812. Do I only see the three sliders or the single PWM output but not both (4 sliders).

ESP32
Hat sich in der zwischenzeit etwas geändert. Ist es jetzt möglich eine WS2812 Leds+ PWM Ausgänge zu schalten. Und das ganze noch über die GUI mit Schieberegler oder ist es nur per Console möglich?

Wäre es praktisch möglich WS2812 Leds+ 16 normale PWM Ausgänge zu steuern?

ESP12
WS2812+ mit einen einzelnen PWM Ausgang. Ist das jetzt möglich. Wenn ich die WS2812 definiere. Sehe ich nur die drei Schieberegler oder den einzelnen PWM Ausgang aber nicht beides (4 Schieberegler).

[sfromis]

PWM is an entirely different way of controlling leds, controlling all leds on a strip at the same time. WS2812 is addressable leds (without anything PWM), where you can have individual control over each led on a strip. The basic light control in Tasmota can only handle one of either PWM or WS2812, not both types at the same time.

[s-hadinger]

The Web UI is necessarily limited. If you want to mix PWM and WS2812, it needs to be done via Berry scripting.

[ccaarrsstteenn]

I am also interested in using PWM and WS2812 in one project at the same time realzed with tasmota. Is it only a UI-Problem? Does anybody has a running Berry script for this? I am totally new to Berry.

[sfromis]

No, unfortunately, that does not work.
The PWM command is not available with WS2812 + PWM pins configured, and SetOption15 0.

[sfromis]

If you config PWM with index 6 and above, in Berry you can address a PWM like this:
gpio.set_pwm(gpio.pin(gpio.PWM1, 5), 1023)
This is for PWM6, with max duty cycle of 1023. Minimum is 0 for off. Do not config PWM1-5.

You can also config WS2812 with index 2 and above, allowing you to control these via Berry (having the PWM channels as base Tasmota light feature), with greatly enhanced flexibility over the rudimentary base Tasmota support for neopixels, but then it gets to be some programming.
https://tasmota.github.io/docs/Berry_Addressable-LED/

[Lumpi-125]

Have you got any further with your Berry script? Ive been trying to unterstand, how the Berry Leds is working, but Im failing and failing...
Maybe somebody can give me a hint on my basic code:
I want to controll one PWM pin with tasmotas light controll and one WS2812 circle with berry.
I set the PWM pin as channel 1 and WS2812 pin as channel 2 in the module parameters. PWM is working as light.

Im trying to set the 1st Led to red.
Berry code:

var ring = Leds(12, gpio.pin(gpio.WS2812, 2)) //WS2812 is connected to GPIO2
ring.set_pixel_color(1, 0xFF0000)

Do i have to define the Leds class first?

[sfromis]

You need ring.show(), and your code addresses whatever gpio you have configured with WS2812 index 3 (or rather, not configured), trying to set color for the 2nd led.

Here's a working example for WS2812 index 2, a short strip of 8 pixels:

var pix = Leds(8, gpio.pin(gpio.WS2812, 1), Leds.WS2812_GRB)
pix.set_pixel_color(0, 0x004040)
pix.set_pixel_color(1, 0x400040)
pix.set_pixel_color(2, 0x404000)
pix.set_pixel_color(3, 0x404040)
pix.set_pixel_color(4, 0x000000)
pix.set_pixel_color(5, 0x000040)
pix.set_pixel_color(6, 0x004000)
pix.set_pixel_color(7, 0x400000)
pix.show()

Specifying Leds.WS2812_GRB was to be explicit, not really needed as this is the default. Indexes in Berry is generally relative to 0, while the gpio dropdown index starts with 1, hence dropdown index 2 being index 1 in the gpio.pin function call.

[Lumpi-125]

it works, thank you!

[Basti149]

Gibt es in der Zwischenzeit ein neuen Ansatz zusätzlich zu dem WS2812 Slider zwei PWM Ausgänge (weiß Töne) bei dem ESP32c3 hin zufügen. Leider ist es noch nicht möglich bei der v14.5

[sfromis]

The lights feature will be either WS2812 or PWM, not both at the same time.

However, you can control one of them via Berry (if you move to WS2812 index 2, or PWM index 6). PWM6 can also be controlled via the PWM command if reconfiguring.

[Basti149]

Thank you, So I would have to set WS2812 1 to WS2812 2. And the two PWM outputs 1 and 2 (white). To PWM 5 and 6, right? This would allow me to switch the two PWM outputs via GUI and the WS2812 via Berry. Would it also be possible to switch the WS2812 via HTTP commands or MQTT? Mit freundlichen Grüßen Sebastian

…

________________________________ From: sfromis ***@***.***> Sent: Sunday, April 20, 2025 11:19:57 PM To: arendst/Tasmota ***@***.***> Cc: Smarthome ***@***.***>; Comment ***@***.***> Subject: Re: [arendst/Tasmota] WS2812 and PWM at the same time? (Discussion #11658) The lights feature will be either WS2812 or PWM, not both at the same time. However, you can control one of them via Berry (if you move to WS2812 index 2, or PWM index 6). PWM6 can also be controlled via the PWM command if reconfiguring. — Reply to this email directly, view it on GitHub<#11658 (reply in thread)>, or unsubscribe<https://github.com/notifications/unsubscribe-auth/AOBCMCQJ36O464Z7NGYSTD322QFP3AVCNFSM6AAAAAB3QDDVSWVHI2DSMVQWIX3LMV43URDJONRXK43TNFXW4Q3PNVWWK3TUHMYTEOBZGI3TQOI>. You are receiving this because you commented.Message ID: ***@***.***>

[sfromis]

No, what I suggested would not be both, but either modifying WS2812 (as you posted now) or modify PWM, which would be index 6 and 7. However, as index 7 is not available on ESP32-C3, you cannot get both channels outside of the lights feature "owning" PWM1-5.

Hence your only option (for full operation on both types) would be modifying the neopixel WS2812, becoming controllable only via Berry code. You could then create your own control command (via Berry) available via MQTT etc.

[Basti149]

Vielen Dank da werde ich es mal probieren ich muss nicht unbedingt die WS2812 per Gui schalten da wären mir die beiden PWM-Ausgänge wichtiger. Wenn ich WS2812 als 2 einstelle dann könnte ich sie per MQTT ansteuern oder per Webbefehle (http://192.168.178.103/cm?cmnd=Led5 40,0,0<http://192.168.178.103/cm?cmnd=Led5%2040,0,0>) würde das funktionieren? Das würde mich bei den WS2812 schon zureichen? Eine andere Frage, wenn ich ein ESP32S3 nehmen würde der Software mäßig mehr PWM-Ausgänge hätte könnte man dort PWM-Ausgänge und WS2812 gleichzeitig schalten und in der GUI anzeigen lassen?

…

________________________________ Von: sfromis ***@***.***> Gesendet: Montag, 21. April 2025 12:44 An: arendst/Tasmota ***@***.***> Cc: Smarthome ***@***.***>; Comment ***@***.***> Betreff: Re: [arendst/Tasmota] WS2812 and PWM at the same time? (Discussion #11658) No, what I suggested would not be both, but either modifying WS2812 (as you posted now) or modify PWM, which would be index 6 and 7. However, as index 7 is not available on ESP32-C3, you cannot get both channels outside of the lights feature "owning" PWM1-5. Hence your only option (for full operation on both types) would be modifying the neopixel WS2812, becoming controllable only via Berry code. You could then create your own control command (via Berry) available via MQTT etc. — Reply to this email directly, view it on GitHub<#11658 (reply in thread)>, or unsubscribe<https://github.com/notifications/unsubscribe-auth/AOBCMCXE5QY6M2A5G5ELET322TD2VAVCNFSM6AAAAAB3QDDVSWVHI2DSMVQWIX3LMV43URDJONRXK43TNFXW4Q3PNVWWK3TUHMYTEOBZG43DCNA>. You are receiving this because you commented.Message ID: ***@***.***>

[sfromis]

Sure, if you leave out having any PWM, you do get normal operation with commands like Led.

But again, the lights feature of Tasmota can be either for PWM1-5 or WS2812-1, you cannot have both in use at the same time.

With Berry you can create control outside of the lights feature, including using Berry to add your own sliders. To do that with WS2812, that would mean coding the details of the handling.

[Basti149]

Vielen Dank zur Not müsste ich die beiden PWM-Ausgänge als Relais ändern oder über Scripting gehen. Wäre es denn in Zukunft in Planung mit der Option beides zu aktivieren?

…

________________________________ Von: sfromis ***@***.***> Gesendet: Montag, 21. April 2025 19:18 An: arendst/Tasmota ***@***.***> Cc: Smarthome ***@***.***>; Comment ***@***.***> Betreff: Re: [arendst/Tasmota] WS2812 and PWM at the same time? (Discussion #11658) Sure, if you leave out having any PWM, you do get normal operation with commands like Led. But again, the lights feature of Tasmota can be either for PWM1-5 or WS2812-1, you cannot have both in use at the same time. With Berry you can create control outside of the lights feature, including using Berry to add your own sliders. To do that with WS2812, that would mean coding the details of the handling. — Reply to this email directly, view it on GitHub<#11658 (reply in thread)>, or unsubscribe<https://github.com/notifications/unsubscribe-auth/AOBCMCTUKVVTUQXX2UU47QL22UR6DAVCNFSM6AAAAAB3QDDVSWVHI2DSMVQWIX3LMV43URDJONRXK43TNFXW4Q3PNVWWK3TUHMYTEOJQGA4TANY>. You are receiving this because you commented.Message ID: ***@***.***>