add sinatra sample #8

shokai · Oct 24, 2012 · 88a793f · 88a793f
1 parent e5bfec6
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diff --git a/samples/README.md b/samples/README.md
@@ -15,3 +15,12 @@ Tweet Temperature
     % gem install tw
     % tw --user:add
     % ruby tweet_temperature.rb
+
+
+Sinatra Arduino
+---------------
+
+    % gem install sinatra
+    % ruby sinatra_arduino.rb
+
+=> http://localhost:4567
diff --git a/samples/sinatra_arduino.rb b/samples/sinatra_arduino.rb
@@ -0,0 +1,23 @@
+#!/usr/bin/env ruby
+$:.unshift File.expand_path '../lib', File.dirname(__FILE__)
+require 'rubygems'
+require 'sinatra'
+require 'arduino_firmata'
+
+arduino = ArduinoFirmata.connect
+
+get '/' do
+  redirect './on'
+end
+
+get '/on' do
+  analog = arduino.analog_read(0)
+  arduino.digital_write 13, ArduinoFirmata::HIGH
+  "<p>analog : #{analog}</p><p><a href='./off'>off</a></p>"
+end
+
+get '/off' do
+  analog = arduino.analog_read(0)
+  arduino.digital_write 13, ArduinoFirmata::LOW
+  "<p>analog : #{analog}</p><p><a href='./on'>on</a></p>"
+end