Yes, WLED has a built-in API command interface that makes it easy to send any text or numerical values to be displayed. Is your temperature / humidity sensor connected to a separate microcontroller from the one running the WLED firmware? If you have the sensor on a separate microcontroller, then it would be easy to setup the API commands to be able to display measured values and update colors or presets however you wish.
@@Electriangle Thank you for the reply, I have a spare esp8266 so I can dedicate one to the WLED. I'll look into the api commands. I Think it would make a great topic for a video if you have enough time ;)
@@kdt85 Yeah, thanks for the suggestion. I don't see any other videos on the topic. I think that'll be a fun, quick project to play around with. I imagine I could have it display red-ish colors for higher temp readings, and then blue-ish colors for lower temp readings. I'll see about putting a video together for that.
thank you for this video, I also played with Wled and scrolling text, with a 32x8 matrix. I'm having trouble displaying multiple sequences of text and finding the right display timing. It seems that there is a character limit, and the management of display times (seconds) is not respected, have you also noticed this? thank you Jean-Philippe
I haven't come across that issue myself. But I did find on Reddit for r/WLED, BytesOfPi mentioned there is a limit of 32 characters. He also created a workaround for that if you are willing to go in and tweak the code through PlatformIO. Here's the post: www.reddit.com/r/WLED/comments/12fzgnw/presets_with_scrolling_text/
@@Electriangle i have the limitation of characters (i work with ESP8266) thanks for sharing link, i have to investigate more on timer for my scrolling texte, thanks!
In the WLED application, you can use the "segments" tab to separate the lights into parts and control them with different effects. You need to define the segments by typing the start and stop LEDs for each segment (for example, 0 to 50 for one segment, then add a new segment for 51 to 100, etc.). When the checkmark for the segment is active, then it will change the effect for that segment. If you search for "WLED segments" on UA-cam, you can find a tutorial that can help explain how to use them.
Yes, it does work with more rows of text. I just tested it to confirm. You simply add another segment and adjust the start and stop boundaries. For example, you could make the first segment "Start Y" set to 0 and the "Stop Y" set to 8. Then for the second segment, you could make the "Start Y" set to 8 and the "Stop Y" set to 16. The only thing is you can't have less than 6 pixels tall or the text will get cut off. That is the minimum height it needs to display the letters. So for my matrix project shown in the video, it doesn't fit with the example I gave. But if your matrix project is bigger, then it will work fine.
Do you mean for the WLED firmware? The WLED releases can be found here: github.com/Aircoookie/WLED/releases At the time of the video, they were at 0.14.0. I would recommend downloading the 0.14.4 stable release for now until the next 0.15.0 version gets formally released.
Yes, you can speed up the text scrolling speed by changing the sliding bars shown under the effects tab. It is the slider called "Effect speed". (See video at 1:44).
Thank you. Have set multiple presets with different phrases. Been wanting this for the rear window of my car. If you know what I mean. ;)
can we set variables to bring in info from other sensors, like temp or humidity
Yes, WLED has a built-in API command interface that makes it easy to send any text or numerical values to be displayed. Is your temperature / humidity sensor connected to a separate microcontroller from the one running the WLED firmware? If you have the sensor on a separate microcontroller, then it would be easy to setup the API commands to be able to display measured values and update colors or presets however you wish.
@@Electriangle Thank you for the reply, I have a spare esp8266 so I can dedicate one to the WLED. I'll look into the api commands. I Think it would make a great topic for a video if you have enough time ;)
@@kdt85 Yeah, thanks for the suggestion. I don't see any other videos on the topic. I think that'll be a fun, quick project to play around with. I imagine I could have it display red-ish colors for higher temp readings, and then blue-ish colors for lower temp readings. I'll see about putting a video together for that.
@Electriangle awesome thank you!
Thanks for sharing
thank you for this video, I also played with Wled and scrolling text, with a 32x8 matrix. I'm having trouble displaying multiple sequences of text and finding the right display timing. It seems that there is a character limit, and the management of display times (seconds) is not respected, have you also noticed this? thank you Jean-Philippe
I haven't come across that issue myself. But I did find on Reddit for r/WLED, BytesOfPi mentioned there is a limit of 32 characters. He also created a workaround for that if you are willing to go in and tweak the code through PlatformIO. Here's the post: www.reddit.com/r/WLED/comments/12fzgnw/presets_with_scrolling_text/
@@Electriangle i have the limitation of characters (i work with ESP8266) thanks for sharing link, i have to investigate more on timer for my scrolling texte, thanks!
Sir, what is the Circuit diagram of esp32 with ws2812 LED string?
Here is a guide and circuit diagram: lastminuteengineers.com/esp32-wled-tutorial/
How to apply two different effect on each half of the leds, one side random flickering and other side android type effect at the same time?
In the WLED application, you can use the "segments" tab to separate the lights into parts and control them with different effects. You need to define the segments by typing the start and stop LEDs for each segment (for example, 0 to 50 for one segment, then add a new segment for 51 to 100, etc.). When the checkmark for the segment is active, then it will change the effect for that segment.
If you search for "WLED segments" on UA-cam, you can find a tutorial that can help explain how to use them.
Is there away to display two rows of text at the same time?
Yes, it does work with more rows of text. I just tested it to confirm. You simply add another segment and adjust the start and stop boundaries. For example, you could make the first segment "Start Y" set to 0 and the "Stop Y" set to 8. Then for the second segment, you could make the "Start Y" set to 8 and the "Stop Y" set to 16.
The only thing is you can't have less than 6 pixels tall or the text will get cut off. That is the minimum height it needs to display the letters. So for my matrix project shown in the video, it doesn't fit with the example I gave. But if your matrix project is bigger, then it will work fine.
@ Can we use a different font, there is one called tom-thumb that works well on led matrices
Hi, where is the 0.34 version ??????
Do you mean for the WLED firmware? The WLED releases can be found here: github.com/Aircoookie/WLED/releases
At the time of the video, they were at 0.14.0. I would recommend downloading the 0.14.4 stable release for now until the next 0.15.0 version gets formally released.
How up speed scrolling? Now very slow... need x3
Yes, you can speed up the text scrolling speed by changing the sliding bars shown under the effects tab. It is the slider called "Effect speed". (See video at 1:44).