Sparky Jr. is a programmable RGB LED mod companion light-up activation controller for arcade pushbuttons. 2 parts software, 1 part hardware, the Sparky Jr. is a unique interface and an extendable platform with a unique combination of Arduino, Processing and RGB LEDs. Eugene Andruszczenko (32teeth) walks us through the ideation, creation and realization of leveraging OpenSource Hardware and Software through to product development. GitHub: http://32teeth.github.io/SparkyJr/

1. hi!
SparkyJr. RGB LED Controller 32teeth eugeneyevhen 32teeth.github.io in/32teeth

2. SparkyJr. RGB LED Controller 32teeth eugeneyevhen 32teeth.github.io in/32teeth
hi,mynameis:
eugeneyevhen
andruszczenko

3. SparkyJr. RGB LED Controller 32teeth eugeneyevhen 32teeth.github.io in/32teeth
iamthe:
executivedirector,
technology

4. SparkyJr. RGB LED Controller 32teeth eugeneyevhen 32teeth.github.io in/32teeth

5. SparkyJr. RGB LED Controller 32teeth eugeneyevhen 32teeth.github.io in/32teeth

6. SparkyJr. RGB LED Controller 32teeth eugeneyevhen 32teeth.github.io in/32teeth
iam:
tinkerer,hacker,
technologyenthusiast

7. SparkyJr. RGB LED Controller 32teeth eugeneyevhen 32teeth.github.io in/32teeth
iamalsoa:
rapidprototype
developer

8. SparkyJr. RGB LED Controller 32teeth eugeneyevhen 32teeth.github.io in/32teeth
iadvocate:
ethicaldisruption
throughshowcasingideas

9. SparkyJr. RGB LED Controller 32teeth eugeneyevhen 32teeth.github.io in/32teeth
iamheretodaytointroduce:
today'sdiscussion

10. SparkyJr. RGB LED Controller 32teeth eugeneyevhen 32teeth.github.io in/32teeth
SparkyJr.
RGBLEDController

11. SparkyJr. RGB LED Controller 32teeth eugeneyevhen 32teeth.github.io in/32teeth
SparkyJr.
RGBLEDController
whatisthe
SparkyJr.

12. SparkyJr. RGB LED Controller 32teeth eugeneyevhen 32teeth.github.io in/32teeth
whatisthe
SparkyJr. the backstory

13. a few years ago…

14. i joined a fightclub

15. i got myself a fightstick

16. i got myself a fightsticki met some people with ideas

17. the birth of an open source product

18. SparkyJr. RGB LED Controller 32teeth eugeneyevhen 32teeth.github.io in/32teeth
SparkyJr.
a programmable RGB LED
mod companion light up activation controller for
arcade pushbuttons on gaming fightsticks

19. SparkyJr. RGB LED Controller 32teeth eugeneyevhen 32teeth.github.io in/32teeth
SparkyJr.
built on an open source microcontroller standard.

20. interlude

21. interlude

22. a challenge has entered the ring

23. SparkyJr. RGB LED Controller 32teeth eugeneyevhen 32teeth.github.io in/32teeth
challenge.
low barriers to participation
keep costs low (under $25)
core hardware only
shift registers
LED driver IC
simple interface for non tech savvy folk
open source FTW!

24. cont(str)ain yourself

25. SparkyJr. RGB LED Controller 32teeth eugeneyevhen 32teeth.github.io in/32teeth
limits.
atmega328[p][au][nd] only has 20 I/O
6 of which are PWM
common arcade controllers have 8 face buttons
8 RGB LEDs = 24 lines (1 common, 1 per color)
that’s 32 lines
12 more than we have [facepalm]
this was our "'oh sh1t" moment
this was our "awwwwwww sh111111111t" moment

26. work with what you have

27. SparkyJr. RGB LED Controller 32teeth eugeneyevhen 32teeth.github.io in/32teeth
approach.
8 I/O for button inputs
multiplex the rest
8 I/O for LED common line (anode/cathode)
3 I/O for colors (red, green, blue)
row column scanning… …really really fast (no flicker)
port manipulation faster than digitalWrite
hello timers aka TCCR (Timer/Counter Control Register)
TCCR0B = TCCR0B & 0b1111000 | 0x01; millis() and delay()
TCCR1B = TCCR1B & 0b1111000 | 0x01;
TCCR2B = TCCR2B & 0b1111000 | 0x01;
PORTD = B1010010

28. SparkyJr. RGB LED Controller 32teeth eugeneyevhen 32teeth.github.io in/32teeth
results.
can be measured by what the eye can see.

29. interlude

30. SparkyJr. RGB LED Controller 32teeth eugeneyevhen 32teeth.github.io in/32teeth
+

31. interfacing with hardware

32. SparkyJr. RGB LED Controller 32teeth eugeneyevhen 32teeth.github.io in/32teeth
challenge.round2.
low barriers to participation
keep costs low (free)
plugins
drivers
simple interface for non tech savvy folk
open source FTW!

33. SparkyJr. RGB LED Controller 32teeth eugeneyevhen 32teeth.github.io in/32teeth
+ +

34. the birth of the 'configurator'

35. an interface created by a software engineer
SparkyJr. RGB LED Controller 32teeth eugeneyevhen 32teeth.github.io in/32teeth

36. an interface created by a web developer
SparkyJr. RGB LED Controller 32teeth eugeneyevhen 32teeth.github.io in/32teeth

37. an interface created by a web based software engineer
SparkyJr. RGB LED Controller 32teeth eugeneyevhen 32teeth.github.io in/32teeth

38. milestones

39. SparkyJr. RGB LED Controller 32teeth eugeneyevhen 32teeth.github.io in/32teeth
officialLaunch.
the first commercial version was
pre programmed to the users
specified configuration using the
purchase order form
Made to order!

40. SparkyJr. RGB LED Controller 32teeth eugeneyevhen 32teeth.github.io in/32teeth
stayopen.
the first commercial version had an
FTDI pinout for advanced users to reset,
reprogram, hack.
Great Results!

41. SparkyJr. RGB LED Controller 32teeth eugeneyevhen 32teeth.github.io in/32teeth
round2.
the second generation introduced a downloadable
configurator, built in Processing, exported as a
Java application.

42. SparkyJr. RGB LED Controller 32teeth eugeneyevhen 32teeth.github.io in/32teeth
shared.
the second generation spawned a
collaborative project with two web
stores dedicated to fighting game
hardware and parts

43. SparkyJr. RGB LED Controller 32teeth eugeneyevhen 32teeth.github.io in/32teeth
round3.
the third generation release was a
collaboration with the web stores, under
license to manufacture and distribute
under their brands

45. SparkyJr. RGB LED Controller 32teeth eugeneyevhen 32teeth.github.io in/32teeth
helpdesk.
end user support became a full time job (almost)

46. a long hiatus

47. a brief hiatus

48. SparkyJr. RGB LED Controller 32teeth eugeneyevhen 32teeth.github.io in/32teeth
silenceisbroken.
in november of twenty thirteen, i joined
createInTO and met rick mason

49. SparkyJr. RGB LED Controller 32teeth eugeneyevhen 32teeth.github.io in/32teeth
round4.
the quietly release fourth generation was
showcased incorporated with the third generation
configurator

50. SparkyJr. RGB LED Controller 32teeth eugeneyevhen 32teeth.github.io in/32teeth
reboot.
taking the hardware back to the arduino uno r3
no gimmicks

56. SparkyJr. RGB LED Controller 32teeth eugeneyevhen 32teeth.github.io in/32teeth
rebuild.
both the core SparkyJr. software and configurator
where revisited from received feedback, rebuilt, and
optimized

57. demo time!

58. SparkyJr. RGB LED Controller 32teeth eugeneyevhen 32teeth.github.io in/32teeth
click me

59. what's next

60. SparkyJr. RGB LED Controller 32teeth eugeneyevhen 32teeth.github.io in/32teeth
+ + +

61. ambitious

62. SparkyJr. RGB LED Controller 32teeth eugeneyevhen 32teeth.github.io in/32teeth
+ +

63. SparkyJr. RGB LED Controller 32teeth eugeneyevhen 32teeth.github.io in/32teeth
=

64. SparkyJr. RGB LED Controller 32teeth eugeneyevhen 32teeth.github.io in/32teeth
+

65. SparkyJr. RGB LED Controller 32teeth eugeneyevhen 32teeth.github.io in/32teeth
webenabled.
adding web based capabilities tore down any remaining
barriers to participation

66. SparkyJr. RGB LED Controller 32teeth eugeneyevhen 32teeth.github.io in/32teeth
extended.
adding web based capabilities tore down any remaining
barriers to participation

67. SparkyJr. RGB LED Controller 32teeth eugeneyevhen 32teeth.github.io in/32teeth
api.
chrome extensions add capabilities to connect to
devices using the usb and serial libraries

68. what's next for sparky

70. SparkyJr. RGB LED Controller 32teeth eugeneyevhen 32teeth.github.io in/32teeth
the final frontier
ps360+ ready
ws2811 chainable ready
same configurator

71. product development lifecycle

72. other projects

73. SparkyJr. RGB LED Controller 32teeth eugeneyevhen 32teeth.github.io in/32teeth
arduino in your pocket

74. SparkyJr. RGB LED Controller 32teeth eugeneyevhen 32teeth.github.io in/32teeth
lcd/tft ready
touch ready

76. and finally

77. SparkyJr. RGB LED Controller 32teeth eugeneyevhen 32teeth.github.io in/32teeth