rrothenberger / qr_code

QRCode is a library for Elixir to create byte-mode QR codes.

QRCode

Based on Erlang version: https://github.com/komone/qrcode/

QRCode is a library for Elixir to create byte-mode QR codes.

Usage

Encode new QR code

iex> QRCode.encode "Hello, world!"
%QRCode{
  data: <<0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 254, 203, 248, 4, 16,
    144, 64, 46, 128, 186, 1, 117, 117, 208, 11, 168, 174, 128, 65, 89, 4, 3,
    250, 175, 224, 0, 19, 0, 0, 139, 183, 200, 3, 66, ...>>,
  dimension: 29,
  ecc: 'M',
  version: 1
}

Encode and return as a string of # and .

iex> QRCode.as_string("Hello, world!") |> IO.puts
.............................
.............................
.............................
.............................
....#######.##..#.#######....
....#.....#....#..#.....#....
....#.###.#.......#.###.#....
....#.###.#.#.###.#.###.#....
....#.###.#.#...#.#.###.#....
....#.....#.#.##..#.....#....
....#######.#.#.#.#######....
............#..##............
....#...#.###.##.#####..#....
.....##.#....#..#.######.....
....#..####.##.#.##.#..#.....
....###.#..#.....#.##........
....#.#.####.#..##.....#.....
............##......##.##....
....#######.##.#.#####.#.....
....#.....#....#.#.##..#.....
....#.###.#.#..##..##........
....#.###.#..##..##.##.##....
....#.###.#..#....####.......
....#.....#....#.#...........
....#######.#..#.#.##...#....
.............................
.............................
.............................
.............................

Encode and display in terminal