Malcolm Ocean's roamblog

March 24th, 2021

edited 2021-03-24 · open in Roam
  • VibraVest idea, talking with my friend Hormeze
    • inspired by thinking about the Apollo wristband thingy, which seems to be soothing like touch is soothing
    • and basically being like "what about more dakka?"
    • basic concept
      • a vest or blanket or similar, with individually-addressable tiny vibrating motors, that can simulate your chest or back being stroked
        • (not per se realistically, but probably nonetheless very pleasurably, not unlike a Hitachi Magic Wand)
      • example vibrating motor disc:
    • anyway, turns out that the now-very-common individually-addressable LED strips are doing some super fancy digital stuff, so unless one of those could be hacked to run vibes instead of blinky, that's probably off the table
    • another possibility is a schematic like the one below, from an expired patent I don't fully understand called "Individually addressable micro-electromagnetic unit array chips"
      • staring at this a bit, I'm noticing that basically it seems like each unit is plugged into ground and into a source (labelled "Ɪ"), with two switches controlling whether each circuit completes
      • I'm a bit confused about how those switches work, but broadly it seems plausibly the case that basically for any given row/column pair, that circuit either gets completed or not, and if completed, circuit closes
      • wait, no, that would be if one switch. TWO switches. why TWO?
      • also this method seems to only allow "on/off" of each, not a custom voltage
      • anyway, I made this version of the diagram trying to think about this: