Yeah. poorly explained. I am using four of these: Ws2812 8x8 (aliexpress). And oriented like in that picture above. Here is result if i rotate 90/270 agree.
There are probably LEDs mapped differently on the modules. I don’t use individual modules but a whole block of 8x32 LEDs and that works fine.
Well, this is part of the addressable light component and the pixel_mapper option. You have to try it by your self. As a startingpoint take a look at this code sample:
display:
- platform: addressable_light
id: ehmtx_display
addressable_light_id: ehmtx_light
width: 32
height: 8
pixel_mapper: |-
if (x % 2 == 0) {
return (x * 8) + y;
}
return (x * 8) + (7 - y);
rotation: 0°
update_interval: 16ms
auto_clear_enabled: true
lambda: |-
it.line(0, 0, 3, 0);
it.line(8,0,11,0);
it.line(16,0,19,0);
// id(rgb8x32)->tick();
// id(rgb8x32)->draw();
with the right pixel_mapper it should look like this:
Exciting news.
Using an ESP32 with an I2S audiomodule makes the display to a media player.
In my case i use this:
media_player:
- platform: i2s_audio
name: "$devicename media"
id: ehmtxaudio
dac_type: external
i2s_lrclk_pin: GPIO33
i2s_dout_pin: GPIO22
i2s_bclk_pin: GPIO19
mode: mono
Sadfully combining ehmtx with bluetooth proxy doesn’t work, at least with wifi. I will test it with a wired ESP32 and report later.
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There is a new video on how to setup my display:
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Can you make an English version please?
Sorry, this was made by a german youtuber not by me. But the documentation on github is in english.
Do you use a 3-d printed case or similar to house your LEDs? I really like how it looks with the diffusers in front of the lights.
i can’t find my model anymore. But this is the next one i will try Model
Mine is similar with a printed diffusor.
But if you like to buy a ready made hardware search for ulanzi TC0001. My software works with that hardware (mostly see my repo).
Try this:
pixel_mapper: |-
return ((int) (x/8 * 64)) + x % 8 + y * 8;
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After updating esphome version 2023.11, yaml ehmtx version 1 cannot be compiled.
It stops on error
Failed config
api: [source /config/esphome/led-8x32.yaml:61]
services:
- service: alarm
variables:
icon_name: string
[text] is an invalid option for [variables].
text: string
I can fix it somehow?
Corrected. I changed the text to texts because it conflicts with the new text component that was added in the ESPHome version 2023.11
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You need to change both the variables and the lambda
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I’ve already found out, thanks
This project looks really interesting. One question - is it possible to toggle between using the panel as a light (all pixels in a block of the same colour) vs as a clock / information display?
Thanks
Yes, of course ;-), but it is not yet in the documentation. There is a service call:
service: esphome.m5stamp_color_screen
data:
lifetime: 2
screen_time: 10
r: 100
g: 45
b: 140
Similar to the other service calls, you can set the whole screen to one color.
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