1. Building a
keyboard
from
scratch Jesse Vincent
jesse@fsck.com
http://keyboard.io
@obra / @keyboardio
Wednesday, April 24, 13

2. Why?
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3. My boss stole
my keyboard
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4. Wednesday, April 24, 13

5. I couldn’t find a
keyboard I wanted
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6. I tried
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7. So, you want to
make a keyboard?
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8. Tools you’ll need
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9. Soldering
Iron
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10. Wire
cutter
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11. Tools you’ll want
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12. Wire
cutter
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13. Solder Sucker
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14. Fine-tipped
tweezers
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15. Multimeter
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16. Hot Glue
Gun
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17. Parts you’ll need
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18. Keyswitches
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19. IN418
Diodes
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20. Magnet
Wire
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21. Rosin-core
Solder
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22. Microcontroller
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23. PJRC.com Teensy
(Atmel Atmega)
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24. Key Caps
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25. A Case
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26. Parts you’ll want
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27. Jumper
wires
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28. MiniUSB
cable
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29. A bit more
explanation
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30. The
case &
layout
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31. Design your own!
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32. 14mm square holes
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33. 3+ mm apart
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34. Top plate:
1.5 mm
thick
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35. Edge & bottom
plates:
Much thicker
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36. I designed my first
keyboards in
Omingraffle
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37. 14mm
14mm
3+mm
3+mm
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38. Prototype
with paper
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39. Wednesday, April 24, 13

40. 3D Printer for
crazy designs
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41. Diodes
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42. Key Ghosting
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43. Credit: @pdcawley
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44. Credit: @pdcawley
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45. Credit: @pdcawley
Wednesday, April 24, 13

46. Credit: @pdcawley
Wednesday, April 24, 13

47. Putting it together
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48. Try the keys & keycaps
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49. Start Soldering
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50. Flat pin:
Connect Diode
Square pin:
Connect wire
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51. Connect
the keys in
each row
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52. Solder the
diodes in
columns
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53. Connect
them in
parallel
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54. Connect the
black ends
to the keys
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55. Solder a wire
to each row
& column
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56. Connect those wires
to the microcontroller
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57. Install avr-gcc
pjrc.com/teensy/gcc.html
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58. Teensy
Loader
pjrc.com/teensy/loader.html
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59. Configure some
keyboard firmware
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60. github.com/humblehacker/keyboard
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61. % vi config.kspec
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62. Wednesday, April 24, 13

63. % make
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64. Wednesday, April 24, 13

65. Install your firmware
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66. Test your
keyboard
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67. (This is why
you want
a multimeter)
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68. What didn’t I
mention?
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69. Printed
Circuit
Board
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70. You do not
need one!
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71. My experiences
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72. Mark 1 Keyboard
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73. shell from
ergodox.org
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82. Mark 2 Keyboard
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90. Mark 3 Keyboard
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98. Mark 4 Keyboard
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107. Mark 5 Keyboard
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114. Mark 6
Keyboard
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136. Thanks!
http://keyboard.io
Wednesday, April 24, 13