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by omershapira 993 days ago
The most fun part of these projects is seeing people quickly build ad-hoc renderers for E-Ink. Very quickly you find out you need render passes, dithering, debanding, etc.

Here's my weather E-Ink board (which consistently gives a faster result than waiting for the iOS weather app to fetch & render): https://github.com/OmerShapira/theres-some-weather-outside

4 comments

Yea doing that the first time was a pain but FBink is pretty widely supported on these type of devices and really lowers the barrier to entry.
Love your readme lol
what's the screen refresh time like on this? I have a small e-ink display that I got from Adafruit and it takes 10+ seconds to redraw
LTT just did a video[1] on an 25inch E-Ink display[2] that runs at 15Hz.

It worked way better than I thought it would and is a pretty decent size.

Little pricey.

[1] https://www.youtube.com/watch?v=-ZXrJRpA0Jw

[2] https://www.amazon.com/DASUNG-Paper-Monitor-Knight-Version/d...

The one display I got takes about 2 seconds to cycle. You can make it shorter with partial redraws, but for my purposes, the cycle was the right thing to do.
It's a shame that this open-source project is lower than the guy spamming and astro-turfing his locked-in calendar display.
To be fair:

1. His project does allow rendering any HTML: https://www.invisible-computers.com/programmable-e-paper-scr...

2. It is in stock. :) Raspberry Pi Zero 2 and the waveshare displays are in a bit of a stock crunch, and the frame I ended up mounting this in, along with the special flat USB cable, pushed the project cost to the same price. It's my own aEsTheTic tho.

Also it actually looks nice. But I do agree it's lame that it's locked down.
Anyone got it to work with Nextcloud?