{
  "id": "load-cell-bar",
  "name": "Bar load cell 1-20 kg (4 wires)",
  "category": "sensor",
  "measures": [
    "weight",
    "force"
  ],
  "pins": [
    {
      "name": "RED",
      "role": "passive",
      "notes": "Excitation + (E+ on the HX711). Never to the ESP32"
    },
    {
      "name": "BLACK",
      "role": "passive",
      "notes": "Excitation - (E- on the HX711)"
    },
    {
      "name": "WHITE",
      "role": "passive",
      "notes": "Signal - (A- on the HX711)"
    },
    {
      "name": "GREEN",
      "role": "passive",
      "notes": "Signal + (A+ on the HX711). Colours vary: if readings fall under load, swap A+ and A-"
    }
  ],
  "voltage": "3.3-5",
  "model": {
    "shape": "module",
    "size": [
      80,
      12.7,
      12.7
    ],
    "color": "#C9CED4"
  },
  "keywords": [
    "load cell",
    "bar load cell",
    "strain gauge",
    "scale",
    "cella di carico",
    "bilancia",
    "peso"
  ],
  "sources": [
    {
      "title": "Avia Semiconductor HX711 datasheet",
      "section": "Bridge input A+/A-, excitation E+/E-"
    },
    {
      "title": "Typical bar load cell seller datasheet",
      "section": "Full bridge, rated output about 1 mV/V"
    }
  ]
}