12/19/2019 at 19:53 •
We've added a small perf-board that breaks out I2C-SDA0 (PIN 18), I2C-SCL0 (PIN 19) and 3.3V (which we for some reason hadn't already expanded). The perf-board also hosts an Adafruit DS3231 Real Time Clock (RTC) Module, which means that we now, after some minor code-adjustments, have a "clock mode" for our display.
When operating in "clock mode", the display will show the time with one minute resolution. Every time a minute has passed, the display will load a new animation from the SD-card and display it. We change modes with a 4-way switch that is yet to be documented (our guess is that the current code might not be self-documenting 😅) .
We'll publish some logs documenting the switch and some buttons we've added, for easier operation, at a later time.
11/29/2019 at 14:28 •
Oh, wow. It took us two years from start to finish, but the display is actually done.
We've compiled a series of sweet sweet animations and spent a long time perfecting this video. We hope you enjoy it:
Since last time we've hidden the cable chaos. For the initial version of "Fetch" we wanted to use laser cut plywood as a chassis, because it's a very replicable and simple solution. We will look into a making a neater metal finish in the next version, which will be considerably sleeker, for an even cleaner look.
For our own convenience, we also added a few buttons and switches that makes it simpler to show a variety of animations when displaying the project at maker festivals.
We make the animations in Aseprite, a powerful and free* pixel art editor, and parse them into a format we've found easy to read on the Teensy 3.6 that's at the heart of the platform.
(*As long as you can compile the source code yourself. )
While Fetch is now complete, we are not done working with ferrofluid, or electronics for that matter. We are currently researching ways of making a "flat screen" version, and even much smaller ferrofluid displays that are cheaper to replicate. We are also working on implementing more software features, like videogames, in the version we've already made. This paragraph marks the end of the project, but not the end of our ferrofluid display endeavours. Stay tuned!
09/11/2019 at 19:15 •
As we have already revealed here on Hackaday.io, we recently upgraded our system with a Teensy 3.6 (from an Arduino Mega). We also did various changes to our code in order to make it run faster, so that we could implement PWM in software and have it perform reliably. We've already shared most of the improvements we've done, but now we've also compiled a video showing how it looks in practice:
08/10/2019 at 12:24 •
Although the project is new here on Hackaday.io, it has already been going on for a while. We have several build episodes on YouTube, but in our most recent video we integrate the full system and test it after first having assembled and tested the electronics.
Everything is open source, and the files can be found below. However, we do not recommend anyone to attempt to rebuild the project in its current state. The electronics especially require a big revision (version 2 will be started later this fall).
(work in progress) Firmware can be found on: