{
  "id": "sim800l",
  "name": "SIM800L GSM/GPRS module (2G)",
  "category": "output",
  "pins": [
    {
      "name": "NET",
      "role": "passive",
      "notes": "Antenna connection"
    },
    {
      "name": "VCC",
      "role": "power",
      "notes": "3.4 to 4.4 V with peaks up to 2 A. Use a Li-ion cell or a buck converter, not the ESP32 pins"
    },
    {
      "name": "RST",
      "role": "digital_in",
      "needsOutput": true,
      "notes": "Reset, active LOW"
    },
    {
      "name": "RXD",
      "role": "digital_in",
      "needsOutput": true,
      "notes": "UART: the module receives here (2.8 V logic). Connect to an ESP32 TX pin through a divider"
    },
    {
      "name": "TXD",
      "role": "digital_out",
      "notes": "UART: the part sends data here. Connect to an ESP32 RX pin. Auto-baud: try 9600 or 115200"
    },
    {
      "name": "GND",
      "role": "ground",
      "notes": "Connect to ESP32 GND too"
    },
    {
      "name": "RING",
      "role": "digital_out",
      "notes": "LOW on an incoming call or SMS, optional"
    },
    {
      "name": "DTR",
      "role": "passive",
      "notes": "Sleep control, optional"
    },
    {
      "name": "MIC+",
      "role": "passive",
      "notes": "Microphone, optional"
    },
    {
      "name": "MIC-",
      "role": "passive"
    },
    {
      "name": "SPK+",
      "role": "passive",
      "notes": "Speaker, optional"
    },
    {
      "name": "SPK-",
      "role": "passive"
    }
  ],
  "bus": "gpio",
  "voltage": "3.4-4.4",
  "model": {
    "shape": "module",
    "size": [
      31.5,
      23,
      4
    ],
    "color": "#B22222"
  },
  "keywords": [
    "sim800l",
    "gsm",
    "gprs",
    "sms",
    "2g",
    "modem",
    "cellulare",
    "scheda sim"
  ],
  "sources": [
    {
      "title": "SIMCom SIM800 series hardware design",
      "section": "Power supply 3.4 to 4.4 V, burst current up to 2 A; UART at 2.8 V levels"
    }
  ]
}