{
  "id": "ph-4502c",
  "name": "PH-4502C pH sensor module",
  "category": "sensor",
  "measures": [
    "ph"
  ],
  "pins": [
    {
      "name": "TO",
      "role": "analog_out",
      "notes": "Board temperature (not the liquid), optional"
    },
    {
      "name": "DO",
      "role": "digital_out",
      "notes": "Threshold output, set by a trimmer. Its HIGH level is 5 V: use a voltage divider"
    },
    {
      "name": "PO",
      "role": "analog_out",
      "notes": "pH voltage, about 2.5 V at pH 7 after calibration, up to 5 V: use a voltage divider"
    },
    {
      "name": "GND1",
      "role": "ground",
      "notes": "First G pin"
    },
    {
      "name": "GND2",
      "role": "ground",
      "notes": "Second G pin"
    },
    {
      "name": "VCC",
      "role": "power",
      "notes": "Marked V+. Needs 5 V: use VIN"
    }
  ],
  "bus": "analog",
  "voltage": "5",
  "model": {
    "shape": "module",
    "size": [
      43,
      32,
      15
    ],
    "color": "#1A1A1A"
  },
  "keywords": [
    "ph-4502c",
    "ph meter",
    "ph probe",
    "bnc",
    "water quality",
    "sonda ph",
    "qualità acqua"
  ],
  "sources": [
    {
      "title": "PH-4502C module seller sheet",
      "section": "Header To, Do, Po, G, G, V+; 5 V supply; BNC probe input"
    },
    {
      "title": "PH-4502C module seller sheet",
      "section": "Needs calibration with pH 4 and pH 7 buffer solutions"
    }
  ]
}