11–20 of 211 posts
When are we going to have cheaper e-ink screens available? Anyone know if the situation has changed in the last couple of years? See: https://news.ycombinator.com/item?id=26143779
Realistically, it’ll be when the patents expire.
Posh frames e-ink friends! Here's my generative newspaper: https://i.imgur.com/tD1t9u3.jpeg My wallet stopped at 13.3" though :) Update for those who saw me post it before: I recently charged the battery for the first time since hanging it in March, which met my expectations. Shout-out also to the people at Halbe Rahmen, the best picture frames in the world.
Mine is still wired but I'm thinking of using ESP32 + deep sleep.
When are we going to have cheaper e-ink screens available? Anyone know if the situation has changed in the last couple of years? See: https://news.ycombinator.com/item?id=26143779
Yeah I built one with 10" screens https://dheera.net/projects/einkframe/ I really want to upgrade to at least 31" but it's rather expensive. Separately in the next irritation of this project I'm hoping to use an ESP32 instead of an RPi Zero to power it, and use the deep sleep mode so it can periodically update but sleep through the rest of the time, allowing a few months of battery life with no wire sticking out. Eve…
The best option I found so far is a timer shield that can wake up the Raspberry periodically: https://www.pishop.us/product/sleepy-pi-2-power-management-s...
That's a very neat project. The only issue I have with it is that it's basically a passive energy waster. It produces images by burning GPU power, when it could instead curate art from an existing amount of art (of which there is more to ever go through, almost in any category). Some projects that use AI could be replaced with other tech and be much more efficient.
You can also have it not produce images at night or when you are not around the house.
Lots of ways to save energy. The impact of an image every few hours or whatever is nanoscule compared to your transportation and heating needs.
(Also if your apartment uses electric resistive heating, fire away with your GPU, you're just producing images in the process of producing heat instead of passing it through a resistor. It's no less efficient.)
Posh frames e-ink friends! Here's my generative newspaper: https://i.imgur.com/tD1t9u3.jpeg My wallet stopped at 13.3" though :) Update for those who saw me post it before: I recently charged the battery for the first time since hanging it in March, which met my expectations. Shout-out also to the people at Halbe Rahmen, the best picture frames in the world.
Wondering if you have by any chance shared code and plans for the long battery life setup? Mine is still wired but I'm thinking of using ESP32 + deep sleep.
esp32 + deep sleep + external RTC is what this is using. I posted some of my experiences with getting it as low as I could here: https://news.ycombinator.com/item?id=37663913
Here's a few more pics: https://imgur.com/a/NoTr8XX
I found the mention of Blue Noise Dithering in this project quite interesting! I've not put a lot of effort into picking the nicest possible dithering method (just a basic Floyd-Steinberg) for the embedded article photos, partly because the whole newspaper look didn't seem to warrant it, but it might be worth taking stock of what the latest on dithering is.
For comparison a 42" full-color 60fps TV with remote, speakers, wifi, etc. etc. is $140.
It seems like the patent holder could be making a lot more money if they dropped the price.
Earlier quoted context omitted.
It's monochrome.
The video has a lot of glare and the dithering seems like an important part. I wanted to contrast that process with the original.
When displayed on the frame you can barely see the dithering. Interestingly you see the jpeg compression artifacts a lot more
That's a very neat project. The only issue I have with it is that it's basically a passive energy waster. It produces images by burning GPU power, when it could instead curate art from an existing amount of art (of which there is more to ever go through, almost in any category). Some projects that use AI could be replaced with other tech and be much more efficient.