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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
regenerate normalized geometry15 days ago
  • ..
  • board.json69.8 KB
  • ph-probe.kicad_pcb961.0 KB
  • ph-probe.kicad_sch179.7 KB

10 files · classified by what they are, not by extension.