# QRCode
generate qrcode util
## Installation
by adding `qrcode` to your list of dependencies in `mix.exs`:
```elixir
def deps do
[
{:qrcode, "~> 0.1"}t
]
end
```
## Usage
```elixir
# save qrcode png to file "/Users/hello/tmp/helloworld.png"
QRCode.to_png_file("hello world", "/Users/hello/tmp/helloworld.png")
# save qrcode png to file "~/tmp/helloworld.png"
QRCode.to_png_file("hello world", "~/tmp/helloworld.png")
# save qrcode png to file "~/tmp/helloworld.png" with quiet_zone is 1
QRCode.to_png_file("hello world", "~/tmp/helloworld.png", quiet_zone: 1)
```