Pancake-ROM: Eat-only Memory?

You can store arbitrary data encoded in binary as a pattern of zeros and ones. What you do to get those zeros and ones is up to you. If you’re in a particularly strange mood, you could even store them as strips of chocolate on Swedish pancakes.

Oddly enough, the possibility of the pancake as digital storage medium was what originally prompted [Michael Kohn] to undertake his similar 2013 project where he encoded his name on a paper wheel. Perhaps wisely, he prototyped on a simpler medium. With that perfected, four years later, it was time to step up to Modified Swedish Pancake Technology (MSPT).

pancake_rom_bottomHighlights of the build include trying to optimize the brightness difference between chocolate and pancake. Reducing the amount of sugar in the recipe helps increase contrast by reducing caramelization, naturally. And cotton balls placed under the spinning cardboard platform can help stabilize the spinning breakfast / storage product.

Even so, [Michael] reports that it took multiple tries to get the sixteen bytes (bites?) of success in the video below. The data is stenciled onto the pancake and to our eye is quite distinct. Improvement seems to be more of an issue with better edge detection for the reflectance sensor.

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33C3: Edible Soft Robotics

Certainly one of the more entertaining talks of the 33rd Chaos Communications Congress was [Kari Love]’s talk on her experiments in mixing food with function. In [Kari]’s talk at the 2016 Hackaday Supercon, she talked extensively about working on soft robotic for NASA. At the 33C3, her focus was twofold: on a fun side project to make mobile robots out of stuff that you can eat, and to examine the process of creative engineering through the lens of a project like this.

homeelliotpendrive33c3-8113-eng-edible_soft_roboticsmp4-shot0005If you look up edible robotics, you get a lot of medical literature about endoscopes that you can swallow, or devices that take samples while they’re inside you. That’s not what [Kari]’s after at all. She’s after a robot that’s made of candy, a yummy machine. And while this is still a work in progress, she demonstrated a video of an all-licorice cable-based actuator.

homeelliotpendrive33c3-8113-eng-edible_soft_roboticsmp4-shot0006_thumbnailBut more than that, she demonstrated all of the materials she’s looked at so far, and the research she’s done. To some extent, the process is the substance of this project, but there’s nothing wrong with some tasty revelations along the way.

This talk was a potpourri of helpful tips and novel facts. For instance, if you’re working in candy robotics, don’t eat your mistakes. That stomach ache that your mom always said you’d get? You will. Did you know that the gummi in gummibears is re-heatable and re-moldable? In addition, of the gels that she made, it was the most delicious. And finally, Pop Rocks don’t have enough CO2 in them to drive pneumatics. Who knew? [Kari] knows. And now you do too.

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