Show HN: Building an E-Ink Calendar and a UI Toolkit along the way

#1

Post by rahulrav » Mon, Dec 28, 2020, 4:38 PM UTC

Show HN: Building an E-Ink Calendar and a UI Toolkit along the way
rahulrav.com

Re: Show HN: Building an E-Ink Calendar and a UI Toolkit along the way

#2

Post by tyler109 » Mon, Dec 28, 2020, 6:17 PM UTC

This is amazing! Any thouhgts to commercialize it, or just a hobby project?

Re: Show HN: Building an E-Ink Calendar and a UI Toolkit along the way

#3

Post by rahulrav » Mon, Dec 28, 2020, 6:25 PM UTC

tyler109 wrote: post #2

This is amazing! Any thouhgts to commercialize it, or just a hobby project?

I started to work on this, because this is something I hoped existed. If there is enough interest, I am open to commercializing it. Its super easy to setup, especially given all my code is already open source :)

Re: Show HN: Building an E-Ink Calendar and a UI Toolkit along the way

#4

Post by gwittel » Mon, Dec 28, 2020, 7:23 PM UTC

Great work! I had been thinking about buying an Inkplate but as a hobby project I had wanted to focus my limited time on the application vs all of the glue (UI, Oauth, etc.). This might be the nudge to move me along. Thanks!

Re: Show HN: Building an E-Ink Calendar and a UI Toolkit along the way

#5

Post by rahulrav » Mon, Dec 28, 2020, 7:43 PM UTC

gwittel wrote: post #4

Great work! I had been thinking about buying an Inkplate but as a hobby project I had wanted to focus my limited time on the application vs all of the glue (UI, Oauth, etc.). This might be the nudge to move me along. Thanks!

Thanks ! Happy to be able to nudge things along

Re: Show HN: Building an E-Ink Calendar and a UI Toolkit along the way

#6

Post by neolog » Mon, Dec 28, 2020, 8:01 PM UTC

Is that font the highest resolution it can be?

Re: Show HN: Building an E-Ink Calendar and a UI Toolkit along the way

#7

Post by rahulrav » Mon, Dec 28, 2020, 8:02 PM UTC

neolog wrote: post #6

Is that font the highest resolution it can be?

No, that is what looked okay to me. The font sizing on the Calendar is customizable.

You can also side load custom fonts. I am going to look into this, because the default fonts are a bit meh.

Re: Show HN: Building an E-Ink Calendar and a UI Toolkit along the way

#8

Post by catchmeifyoucan » Mon, Dec 28, 2020, 8:44 PM UTC

Hmm I wonder if this will work on the remarkable tablet

Re: Show HN: Building an E-Ink Calendar and a UI Toolkit along the way

#9

Post by rahulrav » Mon, Dec 28, 2020, 8:50 PM UTC

catchmeifyoucan wrote: post #8

Hmm I wonder if this will work on the remarkable tablet

Based on my cursory look at `libremarkable`, the SDK looks a lot more capable. You will need to port the code from Python though :/

Re: Show HN: Building an E-Ink Calendar and a UI Toolkit along the way

#10

Post by devadvance » Mon, Dec 28, 2020, 9:36 PM UTC

Great work on this! I especially appreciate the use of the limited-input device flow, after seeing many device projects that use flows intended for servers :)

> Support & configuration for time zones

Are you referring to this? [0] Might be out of scope, but from experience, there are some date/time conversions that will require the TZ name (e.g., "Europe/London") to avoid needing to know whether to use the offset value or DST offset value. Could be worth including the canonical names [1] in a future revision.

Again, awesome work, and it's pushing me to try an E-Ink project of my own!

[0] https://github.com/tikurahul/Inkplate-6-micropython/blob/mas...

[1] https://en.wikipedia.org/wiki/List_of_tz_database_time_zones