{
  "id": "hc-sr04p",
  "name": "HC-SR04P ultrasonic distance (3.3-5 V)",
  "category": "sensor",
  "measures": [
    "distance"
  ],
  "pins": [
    {
      "name": "VCC",
      "role": "power",
      "notes": "Use 3V3: then ECHO is also 3.3 V and safe for the ESP32"
    },
    {
      "name": "TRIG",
      "role": "digital_in",
      "needsOutput": true,
      "notes": "A 10 µs HIGH pulse starts a measurement"
    },
    {
      "name": "ECHO",
      "role": "digital_out",
      "notes": "Pulse length = echo time. Level equals VCC: at 5 V use a divider"
    },
    {
      "name": "GND",
      "role": "ground"
    }
  ],
  "bus": "gpio",
  "voltage": "3.3-5",
  "model": {
    "shape": "module",
    "size": [
      45,
      20,
      15
    ],
    "color": "#1F4FA8"
  },
  "keywords": [
    "hc-sr04p",
    "hc-sr04",
    "ultrasonic",
    "3.3v",
    "sonar",
    "ultrasuoni",
    "distanza"
  ],
  "sources": [
    {
      "title": "HC-SR04P seller datasheet",
      "section": "Supply 3 to 5.5 V; echo output at supply level; same timing as HC-SR04"
    }
  ]
}