display e-ink 3 colors

Hi!
someone know if this display:

https://www.waveshare.com/wiki/2.7inch_e­-PaperHAT(B)

is supported by espruino ?
if yes, which library ?

Thanks !

It uses an spi interface, the data sheet is here

https://www.waveshare.com/w/upload/d/d8/­2.7inch-e-paper-b-specification.pdf

This lists the commands - there might be a similar display in the modules currently supported - or you could try to write a specific module for this board.

Looks like the forum is breaking the links - I'll see if I can tweak them :)

I don't think there is currently a library to support it, but I'd be happy to help you write one. It should be pretty straightforward

Ahem no, i'm too much noob to be able to make a library!
I'm still learning javascript with the help of espruino ;-)
Thanks anyway for now!

I got recently a 3 colored one... just did not yet have the time to play around with it... It is on my list... but pushed down a bit in priority because a small monochrome OLED I have covers my display needs...

Great!
Waiting for news ;-)

I managed to get the 2-colored one working on Espruino as part of my IRL Chrome T-Rex game project.

You can find my initial PoC code in this gist, or check out the final version here.

So this is a working library for waveshare e-ink?

Do you have an example usage code for this?

It's not a library per-se, just a code example. You can run PoC the code in the gist and it should draw a t-rex image on the screen (assuming that you have a similar model to mine, otherwise adjustments might be needed).

Then you can look inside the display.js module of my game and use it as a basis for a library. You will probably have to manually change the pins in the code to whatever pins your display is connected to. Good luck!

Adafruit has the display as well:

https://www.adafruit.com/product/4098

Dear allObjects, did you find the time to use this display with espruino ?

Thanks
Sacha

I have the one as shown in attached pictures. I still hope to find time at one point to connect it. More recent activities included connecting the Espruino Graphics object to displays built with NeoPixels. Some functions needed speed up - saving/restoring/moving and copying around of areas - for which I used inline C..., which btw works really nicely, as you can see documented in this conversation about Efficiently moving things around in zig-zag Graphics buffer visualized w/ 24/32 bpp displays / neopixel strings.

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Thanks for the Info.
Sacha