A Ruby port of the Pimoroni Blinkt Python library.
Blinkt provides eight super-bright RGB LED indicators, ideal for adding visual notifications to your Raspberry Pi on their own or on a pHAT stacking header.
Available from Pimoroni: https://shop.pimoroni.com/products/blinkt
The Blinkt library can be installed from Rubygems:
# gem install blinkt
The two Blinkt methods you'll most commonly use are set_pixel and show. Here's a simple example:
require 'blinkt'
set_pixel(0,255,0,0)
show
set_pixel takes an optional fifth parameter; the brightness from 0.0 to 1.0.
set_pixel(pixel_no, red, green, blue, brightness)
You can also change the brightness with set_brightness from 0.0 to 1.0, for example:
require 'blinkt'
set_brightness(0.5)
show
It is also possible to clear any already lit pixels with clear, set all pixels at once with set_all and to have all pixels clear on exit with set_clear_on_exit.
require 'blinkt'
clear
set_clear_on_exit
set_all(255,0,0)
show
set_all takes an optional fourth parameter; the brightness from 0.0 to 1.0.
set_all(red, green, blue, brightness)
The examples in the examples folder should just work with Blinkt!
The Ruby Blinkt gem version corresponds to the Python lib versions in the following table:
| Ruby Gem Version | Python Lib Version |
|---|---|
| 0.0.3 | 0.1.0 |