hydra/ph-probe
18-bit pH and temperature logger with a proper guard ring, USB-C, and a two-year coin-cell sleep current of 4µA.
v1.4.0rp20404-layer · 30×74 mm$42.80 BOM3h buildCERN-OHL-P-2.0updated 15 days ago
Volume and filament weight are computed from the mesh itself, so they update with whatever file you open — including one dragged in from your own disk.