Anyone had success with SEED Studio XIAO 7.5" ePaper Display

ESPHome
21

Also see here

2 Likes
22

So what is the verdict here? is the XIAO 7.5 decent?

Seems like some hoops to jump though to render a dashboard but not too bad.

I have been strongly considering a display like this for outside my office door so people know I am in meetings / should not disturb.

23

I have been running it for a week or so.

I have wife seal of approval!

There is an initial hurdle to get it setup and the guide provide is well done with a few glitches here and there that may trip up the less technically competent like me.

I have it

IMG_5973
IMG_59734032×3024 2.69 MB

Setup in the lounge with information that I and my wife check normally several times day.

It is set to refresh every 5 mins, the 30 second was too much as the screen flashes when refreshing.

I need to put it on a charger pretty much once a day.

I put a date/time in the display so I could tell if it was still running.

I can see me just leaving it plugged in permanently.

If you plan to use as a sign on a door then you need to consider the screen refresh time.

If you set it to 5 mins then it could take up to 5 mins to reflect a change, you pull data from the device you can’t push to it.

I like it, I had thought about 3d printing a different case for it as they files are available online but have not got around to it yet.

24

I’m also using it, I made some changes to the setup, to get rid of the flickering with every update. This screen supports partial updates, so add a ‘p’ after the model name and add a “full_update_every” interval. Furthermore invert the busy pin as advised in the esphome docs for these models.

display:
  - platform: waveshare_epaper
    id: my_display
    cs_pin: GPIO3
    dc_pin: GPIO5
    busy_pin: 
      number: GPIO4
      inverted: true
    reset_pin: GPIO2
    model: 7.50inv2p
    full_update_every: 720
    update_interval: 10s
1 Like
25

Thanks!!!

I have implemented your recommendations and much improved.

I thought while I was updating it I would change the display slightly and go from the Black Screen with white text to White background and black text.

The instructions for Puppet and SEEED state you add a &invert on the end of the url to get the Dashboard image

“…:10000/epaper-display/epaper-display?viewport=800x480&eink=2”

So it becomes

“…:10000/epaper-display/epaper-display?viewport=800x480&eink=2&invert”

When using this in a browser it does not change the output at all

However adding &inverted does invert the output when use in a browser but has not effect at all on the paper display.

Any ideas, not critical or important … but worth clarifying I think for anyone else trying to get the display the way they want it.

captive_portal:

http_request:

verify_ssl: false

timeout: 10s

watchdog_timeout: 15s

online_image:

- id: dashboard_image

format: PNG

type: BINARY

buffer_size: 30000

url: http://xxx.xxx.xxx.xxx:10000/epaper-display/epaper-display?viewport=800x480&eink=2&inverted

update_interval: 30s

on_download_finished:

- delay: 0ms

- component.update: main_display

spi:

clk_pin: GPIO8

mosi_pin: GPIO10

display:

- platform: waveshare_epaper

id: main_display

cs_pin: GPIO3

dc_pin: GPIO5

busy_pin:

number: GPIO4

inverted: True

reset_pin: GPIO2

model: 7.50inv2p

update_interval: 10s

full_update_every: 720

lambda: |-

it.image(0, 0, id(dashboard_image));
26

I don’t use the it.image function myself, but you can add the foreground and background ‘color’ of the epaper screen to the function.

it.image(0, 0, id(dashboard_image), COLOR_OFF, COLOR_ON);

or maybe you have to swap the COLOR_ON and COLOR_OFF depending on the required result.

it.image(0, 0, id(dashboard_image), COLOR_ON, COLOR_OFF);
1 Like