{
  "id": "ht16k33-7seg",
  "name": "HT16K33 4-digit 7-segment backpack (I2C)",
  "category": "display",
  "pins": [
    {
      "name": "+",
      "role": "power",
      "notes": "Pin order varies between boards: match by the printed label. HT16K33 is rated 4.5 to 5.5 V. At 3V3 it usually works, dimmer"
    },
    {
      "name": "-",
      "role": "ground"
    },
    {
      "name": "D",
      "role": "i2c_sda",
      "notes": "I2C data (SDA)"
    },
    {
      "name": "C",
      "role": "i2c_scl",
      "notes": "I2C clock (SCL)"
    }
  ],
  "bus": "i2c",
  "addresses": [
    "0x70",
    "0x71",
    "0x72",
    "0x73",
    "0x74",
    "0x75",
    "0x76",
    "0x77"
  ],
  "voltage": "3.3-5",
  "model": {
    "shape": "module",
    "size": [
      50,
      19,
      10
    ],
    "color": "#1A1A1A"
  },
  "keywords": [
    "ht16k33",
    "7 segment",
    "backpack",
    "adafruit",
    "i2c display",
    "display 7 segmenti"
  ],
  "sources": [
    {
      "title": "Holtek HT16K33 datasheet",
      "section": "Slave address 1110 A2 A1 A0; VDD 4.5 to 5.5 V"
    },
    {
      "title": "Adafruit LED Backpacks guide",
      "section": "0.56\" 7-segment backpack pinouts, address jumpers A0 to A2"
    }
  ]
}