Tentacle v0.3 (30 pieces produced)
This repo describes the hardware of a tentacle:
Schematics
PCB
The assembled PCB may be ordered at https://www.jclpcb.com. The production files are located here: kicad/tentacle_v0.3/production_v0.3.
The price of a assembled PCB is ~USD10 when ordering 30 pieces.
The tentacle is described in more detail in Big Picture