{
  "id": "ds3231-rtc",
  "name": "DS3231 real-time clock (ZS-042)",
  "category": "sensor",
  "measures": [
    "time",
    "temperature"
  ],
  "pins": [
    {
      "name": "32K",
      "role": "passive",
      "notes": "32 kHz output. Leave unconnected"
    },
    {
      "name": "SQW",
      "role": "int",
      "notes": "Square wave / alarm output (open drain)"
    },
    {
      "name": "SCL",
      "role": "i2c_scl"
    },
    {
      "name": "SDA",
      "role": "i2c_sda"
    },
    {
      "name": "VCC",
      "role": "power"
    },
    {
      "name": "GND",
      "role": "ground"
    }
  ],
  "bus": "i2c",
  "addresses": [
    "0x68",
    "0x57"
  ],
  "voltage": "3.3-5",
  "pullupsOnBoard": true,
  "model": {
    "shape": "module",
    "size": [
      38,
      22,
      14
    ],
    "color": "#1F4FA8"
  },
  "keywords": [
    "ds3231",
    "rtc",
    "real time clock",
    "zs-042",
    "clock",
    "orologio",
    "ora"
  ],
  "sources": [
    {
      "title": "Maxim DS3231 datasheet",
      "section": "I2C address 0x68 (1101000)"
    },
    {
      "title": "Microchip AT24C32 datasheet",
      "section": "EEPROM on the ZS-042 board at 0x57 (A0-A2 pulled up)"
    }
  ]
}