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Open Hardware/Modding: Librem and Arduino

Submitted by Roy Schestowitz on Saturday 5th of June 2021 12:57:02 AM Filed under
Hardware
  • Weaving just got a lot better thanks to this Arduino-controlled Jacquard loom | Arduino Blog

    Jacquard looms revolutionized the weaving process by independently controlling each heddle’s position. That made it possible to weave complex patterns. But modern Jacquard looms are very expensive, because they require a solenoid or other means of actuation for each and every heddle. Lea Albaugh and her team at Carnegie Mellon University found an affordable way to build a Jacquard loom from 3D printer parts — including an Arduino-based controller.

    The key development for this Jacquard loom was a special bistable switch for each heddle. Those switches keep their heddles in the position in which they were last set. That makes it possible to set the heddle positions sequentially, instead of simultaneously with a multitude of solenoids. All of the heddle positions can be set by a single solenoid, which slides back and forth across the loom. This keeps costs down and makes it possible to build a Jacquard loom for about $200 using common 3D printer components.

  • Librem 14 and Librem 13: A Side-by-Side Comparison – Purism

    The Librem 13 and 14 come in a similar footprint, but with some notable improvements in this latest generation.

  • Extending a mobile AC unit's exhaust duct with an air extractor | Arduino Blog

    Portable air conditioners are amazing, especially as we head into the hot summer months. But one big downside is having to place them close to a window that will fit the guard, otherwise it’s really tough getting the hot exhaust air out of the room. This is exactly the problem Hackaday user vincentmakes ran into when he set up a portable AC unit, as his window was the wrong shape. To solve it, he created a little system that allows the AC unit to be plugged in on one side and then match its air flow to shoot hot air out of the window.

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