@ajroach42 *squints suspiciously* OH interesting. Using: https://www.multi3dllc.com/product/electrifi-3d-printing-filament/ which uh... *is* electronics tyvm. Someone needs to pop them on the nose with a newspaper. All they're doing is non-commercially printed circuitry.
@bastlynn the neat parts here are 1) this was done with readily available 3D printable material. 2) the circuits they print don’t require a power source beyond ambient WiFi signals, because they’re basically antenna. 3) the receiver doesn’t require any special hardware. Just WiFi and some custom software.
These things are neat! With some refinement they could be practically revolutionary.