Short script to send Twitter mention messages to a serial port using Ruby and the gems twitter and serialport.

# Find your Twitter Mentions and send them to Arduino on Serial Port
require “rubygems”
require “twitter” #https://github.com/sferik/twitter for config details
require “serialport” #http://rubygems.org/gems/serialport
require “pp”
prevID = 0
puts “Setting Up Serial Port”
myport = SerialPort.new("/dev/ttyACM0",“9600”.to_i)
sleep(10)
while true
puts “Checking for mentions”
latestMention = Twitter.mentions(:count => 1)[0]
if prevID != latestMention.id
msg = latestMention.user.screen_name + " " + latestMention.text
puts “-” + msg
bytes = myport.write(msg)
puts “-” + bytes.to_s
prevID = latestMention.id
else
puts “-No new updates”
end
sleep 60
end
myport.close

Doodle’s Geek Monkey by Alastair Montgomery

Got my Arduino LCD message scroller working last night, will post a video later when I do an end to end test with my Twitter mentions.

Here is the code (also at GitHub https://github.com/alastairhm/arduino.git)

// Auto scroll a message on the LCD and receive new messages via Serial port.
// Alastair Montgomery (c) 2013
// Version 1.02
 
// include the library code:
#include <LiquidCrystal.h>
#include <string.h>
// initialize the library with the numbers of the interface pins
// below for SainSmart LCD Shield
LiquidCrystal lcd(8, 9, 4, 5, 6, 7);