https://github.com/reednj/i2c-alpha_display

a command line gem for writing to the RPi alphanumeric I2C displays
https://github.com/reednj/i2c-alpha_display

hardware i2c raspberry-pi rpi

Last synced: 2 months ago
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a command line gem for writing to the RPi alphanumeric I2C displays

• Host: GitHub
• URL: https://github.com/reednj/i2c-alpha_display
• Owner: reednj
• License: mit
• Created: 2017-01-05T12:28:46.000Z (over 9 years ago)
• Default Branch: master
• Last Pushed: 2017-01-05T13:08:06.000Z (over 9 years ago)
• Last Synced: 2025-12-16T21:15:00.191Z (7 months ago)
• Topics: hardware, i2c, raspberry-pi, rpi
• Language: Ruby
• Homepage: https://rubygems.org/gems/i2c-alpha_display
• Size: 132 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE.txt

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README

          
# I2C::AlphaDisplay

A command line gem to make it easy to send data to I2C 7 and 14-segment displays, like this one: https://www.adafruit.com/product/881

## Installation

    $ gem install i2c-alpha_display

## Usage

After installing the gem pipe any output to `i2cdisp` and it will do its best to show it on the display. Numberic input will have suffixes added so as much fits as possible. Eg. `12345` => `12.3k`

    $ echo helo | i2cdisp

![14-segment display](./display.jpg)

## License

The gem is available as open source under the terms of the [MIT License](http://opensource.org/licenses/MIT).