Schlagwort: ePaper

  • Raspberry Pi powered e-paper display takes months to show a movie

    Raspberry Pi powered e-paper display takes months to show a movie

    Reading Time: 2 minutes

    We loved the filmic flair of Tom Whitwell‘s super slow e-paper display, which takes months to play a film in full.

    Living art

    His creation plays films at about two minutes of screen time per 24 hours, taking a little under three months for a 110-minute film. Psycho played in a corner of his dining room for two months. The infamous shower scene lasted a day and a half.

    Tom enjoys the opportunity for close study of iconic filmmaking, but you might like this project for the living artwork angle. How cool would this be playing your favourite film onto a plain wall somewhere you can see it throughout the day?

    The Raspberry Pi wearing its e-Paper HAT

    Four simple steps

    Luckily, this is a relatively simple project – no hardcore coding, no soldering required – with just four steps to follow if you’d like to recreate it:

    1. Get the Raspberry Pi working in headless mode without a monitor, so you can upload files and run code
    2. Connect to an e-paper display via an e-paper HAT (see above image; Tom is using this one) and install the driver code on the Raspberry Pi
    3. Use Tom’s code to extract frames from a movie file, resize and dither those frames, display them on the screen, and keep track of progress through the film
    4. Find some kind of frame to keep it all together (Tom went with a trusty IKEA number)
    Living artwork: the Psycho shower scene playing alongside still artwork in Tom’s home

    Affordably arty

    The entire build cost £120 in total. Tom chose a 2GB Raspberry Pi 4 and a NOOBS 64gb SD Card, which he bought from Pimoroni, one of our approved resellers. NOOBS included almost all the libraries he needed for this project, which made life a lot easier.

    His original post is a dream of a comprehensive walkthrough, including all the aforementioned code.

    2001: A Space Odyssey would take months to play on Tom’s creation

    Head to the comments section with your vote for the creepiest film to watch in ultra slow motion. I came over all peculiar imaging Jaws playing on my living room wall for months. Big bloody mouth opening slooooowly (pales), big bloody teeth clamping down slooooowly (heart palpitations). Yeah, not going to try that. Sorry Tom.

    Website: LINK

  • This retro-looking rotary cellphone is free of modern-day distractions

    This retro-looking rotary cellphone is free of modern-day distractions

    Reading Time: 2 minutes

    This retro-looking rotary cellphone is free of modern-day distractions

    Arduino TeamFebruary 13th, 2020

    What we carry today in our pockets is nominally called a “phone,” but more often than not we’re using it to do various other computing tasks. Justine Haupt, however, wanted an actual phone that “goes as far from having a touchscreen as [she could] imagine.”

    What she came up with is a rotary cellphone that’s not just a show-and-tell piece, but is intended to be her primary mobile device. It’s reasonably portable, has a removable antenna for excellent reception, a 10-increment signal meter, and, perhaps most importantly, doesn’t make her go through a bunch of menus to actually use it as a phone. Other features include number storage for those she calls most often and a curved ePaper display that naturally doesn’t use any power when revealing a fixed message.

    The project was prototyped using an Arduino Micro. It was then laid out of a PCB with an an Adafruit FONA 3G board and an ATmega2560V, programmed in the Arduino IDE.

    Haupt has published a detailed look at the build process here.

    Website: LINK