84 lines
1.0 KiB
Ruby
Executable File
84 lines
1.0 KiB
Ruby
Executable File
# frozen_string_literal: true
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#!/usr/bin/env ruby
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require 'bundler'
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require 'sinatra'
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require 'rpi_gpio'
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Bundler.setup
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Bundler.require
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BLUE = 37
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WHITE = 35
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RED = 33
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GREEN = 31
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YELLOW = 29
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LEDS = [BLUE, WHITE, RED, GREEN, YELLOW]
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IO = RPi::GPIO
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IO.set_numbering :board
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LEDS.each do |led|
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IO.setup led, as: :output, initialize: :low
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IO.set_low led
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end
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# IO.reset
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get '/' do
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@led_status = led_status
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erb :index
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end
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get '/cycle' do
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clear
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5.times do |i|
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sleep 0.5
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IO.set_high LEDS[i]
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IO.set_low LEDS[i - 1]
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end
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clear
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redirect to('/')
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end
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get '/led/:color' do |led|
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clear
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IO.set_high pick(led)
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redirect to('/')
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end
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def pick led
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case led
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when 'blue'
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BLUE
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when 'white'
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WHITE
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when 'red'
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RED
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when 'green'
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GREEN
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when 'yellow'
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YELLOW
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end
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end
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def clear
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LEDS.each do |led|
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IO.set_low led
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end
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end
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def led_status
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{
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blue: IO.high?(BLUE),
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white: IO.high?(WHITE),
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red: IO.high?(RED),
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green: IO.high?(GREEN),
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yellow: IO.high?(YELLOW)
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}
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end
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