RPi::HD44780
Extremely simple ruby library designed to control a HD44780 16x2 display from a Raspberry Pi.
Installation
Add this line to your application's Gemfile:
gem 'rpi-hd44780'
And then execute:
$ bundle
Or install it yourself as:
$ gem install rpi-hd44780
Usage
Create an instance passing RS, E, and data pins:
display = RPi::HD44780.new 1, 2, [3, 4, 5, 6]
(See the adafruit website for information on how to wire it.)
Send a message:
display.message "Line1\nLine2"
Development
After checking out the repo, run bin/setup
to install dependencies. You can also run bin/console
for an interactive prompt that will allow you to experiment.
To install this gem onto your local machine, run bundle exec rake install
. To release a new version, update the version number in version.rb
, and then run bundle exec rake release
, which will create a git tag for the version, push git commits and tags, and push the .gem
file to rubygems.org.
Contributing
Bug reports and pull requests are welcome on GitHub at https://github.com/nsatragno/rpi-hd44780.
Acknowledgements
Thanks to lrvick for his python implementation