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1. ChristopherAgocs
South Side Hackerspace: Chicago and Backstop SolutionsGroup
ChicaGoLang,April 13 2015

2. Loose definition
<

3. or:
putting Computers on Stuff

4.  Adding Sensors
 Plants
 Wine Bottles
 Mail Boxes
 Adding Displays
 Digital Signage
 Clock that chimes when your bus is due
 Adding Capability
 Robots, etc.

5.  Why bother?
 Display information
 Expand capabilities
 Fun of it
 Why Go?
 Dependency hell
 Awesome standard library
 Fun of it

6. Arduino Raspberry Pi Beaglebone Black

7.  Pros
 Tons of ‘em
 Dirt cheap
 Wildly good support
 Cons
 Tons of ‘em
 Dirt cheap
 Storage

8.  Varieties
 Uno
 Due
 Micro/Nano

9.  Arduino: 32 KB
 Go HelloWorld: 609KB

10.  Why did I waste all that time talking about
Arduinos?

12.  192.168.2.118:9000

13. Computer
Arduino
Serial protocol
“Fermata”

14.  Load level LEDs
 Server room temp monitor

15.  Good at displays
 Fewer GPIO pins
 Digital Signage
 HTPCs

16. Raspberry Pi A B B+
Model 1 1 Core ARMV6
1 USB
256 MB RAM
1 Core ARMV6
512 MB RAM
2 USB + Ethernet
1 Core ARMV6
1 GB RAM
4 USB + Ethernet
Model 2 4 Core ARMV7
4 USB + Ethernet

18.  1 USB port
 More GPIO
 1 GHz ARM processor
 512 MB RAM
 4 GB onboard storage!

19.  Better for developers
 Cloud9
 Node

20.  Angström Linux

22. Telescope
Server
Stepper motor
driver
Stepper motor
driver
Pan
Tilt
Webcam
Controls
Image
HTTP GET and
POST
PWM
USB

23. TelescopeAgocs.orgUser
VPN
Proto-CDN

24.  Done
 Motor control
▪ Left
▪ Right
▪ Down
 Serving control page

25.  Needs doing
 Motor control – Up
 Make motors faster
 Serve it on the ‘net

26.  Needs figuring out
 Exposure control on web cam
 Capture web cam image
 Serve it
▪ Mini-CDN?

27.  Robots are cool
 Go is for more than just servers
 Hack on robots at the South Side
Hackerspace
 sshchicago.org