
OTTOtact
cester-ino/OTTO-hardware
those specs refer to the tactile buttons version, but a led backlight button version is in the works too.
Boards in 11 GitHub repositories, designed in KiCad, that use the LM3914 by Gcore (DIP-18 LED Drivers ROHS). See how each wires it, with its parts, size, README and files; the LM3914’s symbol, footprint and pinout are on its own page.

cester-ino/OTTO-hardware
those specs refer to the tactile buttons version, but a led backlight button version is in the works too.


aiabusalama/pumpbox
REISBOT Pump Guard: a Rust + Raspberry Pi box that keeps a 150 V solar water pump alive



vt-amplab/basic-soldering-cert-board
Kicad files for the new basic soldering certification board

Binomica-Labs/Hardware
Open source tools for scientific inquiry and exploration!




UTS-500-Series/Compressor
A 35 × 110 mm board that sits flat behind the faceplate and carries everything on the panel: the five pots, the four toggles, and both LED meters with their two LM3914 drivers.