We all love Ruby for writing software scripts, websites, applications. Would it not be awesome to use it also for interacting with hardware? With the proliferation of internet connected devices or usually called as 'The Internet of Things' its become important to explore opportunities with hardware hacking for fun and everyday automation. The talk aims to be an introduction of how to interact with an arduino kit using ruby, available gems and other possibilities. It is meant for beginners who are just starting out with Arduino / Ruby and want to see the what it beholds. At the end of the talk 2 projects were demonstrated. 1. Blinking Lights (Red / Green) on twitter sentiment of #rubyconfindia 2. A Light Seeking Robot Car

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Ruby Arduino
Revealing Hour Creations
@nishantmodak

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3. Talk
Physical
Computing
#electronics #ruby #arduino #sensors
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Image Source : IBM Smarter Planet

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Image Source : IBM Smarter Planet
IFTTT + Hardware

7. What is Arduino?
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8. What is Arduino?
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9. What is Arduino?
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10. What is Arduino?
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11. What is Arduino?
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12. Program via
USB
External
Power 9v
14 Digital IO
Pins
µ
controller
6 Analog IO
Pins
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Ethernet Shield

14. Why Arduino?
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MIT's Handyboard
Phidgets
Netmedia's BX-24

15. It is
inexpensive
cross-platform
ide
open-source s/h/w
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16. Hardware
Software
Docs
Brand
CC-SA-BY
CC-SA-BY
GPL
TM
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17. InduinoX
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18. What can
YOU
do with
an
Arduino?
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TDD

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27. How can
YOU
work with
an
Arduino?
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upload Serial
monitor
console

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30. int led = 13;
void setup() {
// initialize the digital pin as an output.
pinMode(led, OUTPUT);
}
void loop() {
digitalWrite(led, HIGH); // turn the LED on
delay(1000); // wait for a second
digitalWrite(led, LOW); // turn the LED off
delay(1000); // wait for a second
}
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31. Options in
RUBY for
arduino ?
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32. 1 Serial Port Gem
• Ruby library
• RS-232 serial ports
sp = SerialPort.new(port_str,
baud_rate, data_bits, stop_bits,
parity)
while sp.gets.chomp do
...
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33. 2 RAD = Ruby Arduino Dev
+Rake Task
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34. Program Sketch
Arduino
Class Methods RubyToC
Assembly
Arduino C++
Rake tasks AVR GCC/Dude
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• Standalone
• Small• Service

36. 3 Dino
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Logical
equivalent of the
arduino board

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Finds Arduino
Communicates
with the world

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Write

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Read

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• Stepper Motor
• DC Motor
• LDR
• Temperature
• RGB LEDs

44. Arduino & Web
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• Arduino Hosted
• Web sockets
• Serial to Net
• Rails
• Sinatra

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board=Dino::Board.new(Dino::TxRx::Serial.new)
led = Dino::Components::Led.new(pin: 13,
board: board)
put ‘/forward’ do
led.on
end
Sinatra

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 

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51. Thanks
• Pratik Chaudhari (@c_pratik)
• Siddharth Bhagwan
• Prashant
• @austinbv – Creator of Dino
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52. References
bit.ly/arduinolinks
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PUSH TO DEPLOY