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
Compiling board geometry…
Layout30mm × 74mmCorner radius4mmStandard 4 Layer
Layout
tracks83
pads127
vias27
parts20
Geometry normalized from electronics/ph-probe.kicad_pcb. Drag to orbit, scroll to zoom, click a part to inspect it, and use the layer panel to strip the board back to bare copper.