E-paper display

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1

Thought I share a project I’ve been working on:
it’s using two waveshare e-ink displays to plot information from home-assistant.

epaper_display1
epaper_display12941×2206 1.62 MB

Although it’s getting somewhere, it’s still a work in progress.
I’m keeping documentation here: e-paper display | Goosst blog

20 Likes
2

This looks super nice! Great work. Also, really clever way of pulling the data to the ESP. :+1:

3

Exciting project.
Really looking forward to seeing what the battery life will be with a power bank, and having both screens on :slight_smile:

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These screen only use power when the display is updated, so if the screen does not update often the battery will last for a long time.

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Really looking forward to seeing what the battery life will be with a power bank, and having both screens on :slight_smile:

Well, it indeed only takes power to update the screen. But the esp board has a led which is constantly turned on when fed through USB. If I redo it, I would take another esp board. So I might have to desolder the led to test its real limits. For now I’m just feeding it with a usb-charger :slight_smile: (due to the lack of a powerbank or a 18650 battery).

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Really nice!

Sorry to hijack your thread, this is my current display.

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received_9754724161639221794×1080 67.7 KB

11 Likes
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Nice. What display are you using and is that case printed?

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Are you using Esphome?

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Yes, esphome and a 4.2" waveshare display and esp32 driver. Will share all code on he I’m happy with the configuration.

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10

Did you share project somewhere?

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hey @fredrike

any updates on this?

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@sinty, @bachoo786

I’ve been really busy with long days and way too much Factorio (factorio.com) but here is a dump of my esphome based nodes: https://github.com/fredrike/esphome-nodes I’ve added the package-display_node.yaml which is a package file to be used on the homeassistant side. I believe contains everything from the homeassistant side needed to get the display node to work, let me know if something is missing.

Edit: Here is my updated display. The black blob is moonphase and the energy readings at the bottom is from an ESP Sparsnäs and an IoTaWatt.

IMG_20200414_152136
IMG_20200414_1521362914×2567 408 KB

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Just wanted to show mine!
Thank you @fredrike for your code. Will post mine later

IMG_6313
IMG_6313768×1024 153 KB

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@makai, could you share your code?

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I have replicated your project, but on a 2.9 inch Waveshare display.

IMG_20200603_221814
IMG_20200603_2218142016×1512 1.04 MB

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Where do you guys buy these eink displays? Last time I checked they were incredibly expensive for their resolution and size.

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Bought mine on AliExpress. Yes it’s a bit expensive, 25€ for a 4.2".

Mine is attached to a Lolin D32, SDS011 (Air Quality), a BME280 (Temp, Humidity and Pressure), a buzzer and a LED (for notification). More info here: Air Quality Sensors + E-Ink Display using ESPHome

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Done here: Air Quality Sensors + E-Ink Display using ESPHome

Sorry for the delay

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Hi Makai,
I have the same display ?
Have you a code to share ?

Salutations Francaises :slight_smile:

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Hi Twinsen68!

Click on the link in the post just above yours :slight_smile:

Bonne lecture :slight_smile: