binary solo

onesandzeros.ca/l/sudo

Follow along

onesandzeros.ca/l/sudo

introductions

  1. Name
  2. Pronouns
  3. A time you mastered technology

Conduct

Social Rules

  • No feigning surprise
  • No well-actuallys
  • No back-seat driving
  • No subtle isms

recurse center <3

(core content!)

(technical digressions!)

⚠ technical digression ⚠

all your
feelings
are valid

binary solo

can you send messages
with just 1s and 0s?

how to count!

back to basics 🤓

the normal way

    1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, …

"Decimal"

"Base 10"

the normal way

0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, …

"Decimal"

"Base 10"

first weird thing: from now on, we will start counting at zero

the normal way

0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, …

"decimal"

"base 10"

something interesting happens here!

delete the 9s!

0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, …

"base 9"

… 18, 19, 20, 21, …

… 88, 89, 90, 91, … 99, 100, 101, …

(animated)

delete the 9s!

0, 1, 2, 3, 4, 5, 6, 7, 8, 10, 11, …

"base 9"

… 18, 20, 21, …

… 88, 100, 101, …

(animated)

how about the 8s!

0, 1, 2, 3, 4, 5, 6, 7, 10, 11, …

"octal"

"base 8"

… 16, 17, 20, 21, …

… 76, 77, 100, 101, …

(animated)

POWER

OF TWO!

…

0, 1, 2, 10, 11, 12, 20, 21, 22, 100, 101, …

"base 3"

(animated)

drumroll...

the last two digits!

the last two digits!

0, 1, 10, 11, 100, 101, 110, 111, …

"binary!!!!!!!!"

"base 2"

(animated)

POWER

OF TWO!

count to 10000

(in binary 😉)

Decimal Binary
0 0
1  1
2 10
3 11
...
Decimal Binary
0 0
1  1
2 10
3 11
4 100
5 101
6 110
7 111
8 1000
9 1001
10 1010
11 1011
12 1100
13 1101
14 1110
15 1111
16 10000
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111

places: decimal

eg: 9201

  • 9 in the thousands column
  • 2 in the hundreds column
  • 0 tens
  • 1  ones
place name
1 "ones"
10 "tens"
100 "hundreds"
1000 "thousands"

⚠ technical digression ⚠

places: decimal

eg: 9201

  • 9  * 1000 +
  • 2  * 100 +
  • 0 * 10 +
  • 1  * 1
place name
1 "ones"
10 "tens"
100 "hundreds"
1000 "thousands"

= 9000 + 200 + 0 + 1

= 9201

⚠ technical digression ⚠

places: decimal

eg: 9201

  • 9  * 1000 +
  • 2  * 100 +
  • 0 * 10 +
  • 1  * 1
place name aka
1 "ones" 100
10 "tens" 101
100 "hundreds" 102
1000 "thousands" 103

= 9000 + 200 + 0 + 1

= 9201

⚠ technical digression ⚠

places: binary!

place name i.e.
1 "ones" 2 0
10 "twos" 2 1
100 "fours" 2 2
1000 "eights" 2 3
0 0
1
1
10
2
11 3
100 4
101 5
110 6
111 7
1000 8
1001 9
1010 10

⚠ technical digression ⚠

places: binary!

eg: 1001

  • 1  * 8 +
  • 0 * 4 +
  • 0 * 2 +
  • 1  * 1
place name i.e.
1 "ones" 2 0
10 "twos" 2 1
100 "fours" 2 2
1000 "eights" 2 3

= 8 + 0 + 0 + 1

= 9

⚠ technical digression ⚠

places: binary!

eg: 0111

  • 0  * 8 +
  • 1 * 4 +
  • 1 * 2 +
  • 1  * 1
place name i.e.
1 "ones" 2 0
10 "twos" 2 1
100 "fours" 2 2
1000 "eights" 2 3

= 0 + 4 + 2 + 1

= 7

⚠ technical digression ⚠

The Counter Button

(Object #1)

 

Ailadi, 2018

send messages

with 1s and 0s?

hexadecimal

base 16!

0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, …

⚠ technical digression ⚠

add some new digits here!

hexadecimal

base 16!

0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F, 10, 11, …

⚠ technical digression ⚠

12, 13, 14, 15, 16, 17, 18, 19, 1A, 1B, 1C, 1D, 1E, 1F, 20, …

… 99, 9A, 9B, 9C, 9D, 9E, 9F, F0, F1, F2, …

… F9, FA, FB, FC, FD, FE, FF, 100, 101, 102, …

POWER

OF TWO!

hardware setup

power up! 🔌

⚡ safety ⚡

stuff is pretty safe!

arduino

mini thermal printer

  • red & black: power

  • green & yellow: communication

  • one blink: all ok!

serial

TX: ←Transmit→

RX: → Receive ←

Arduino pin 10

Arduino pin 9

breadboard wiring:

↜

↝

Tape Recorders

Raphael Lozano-Hemmer (2011)

lozano-hemmer.com/tape_recorders.php

(snacks!)

(foreshadowing snacks!)

00001111

000000111

00000011

0000001

00001111

000000111

00000011

0000001

1 =  1

2 + 1 =  3

4 + 2 + 1 =  7

8 + 4 + 2 + 1 = 15

1 =  1

2 + 1 =  3

4 + 2 + 1 =  7

8 + 4 + 2 + 1 = 15

= B

= D

= H

= P

?????

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
A B C D E F G H I J K L M N O P

bits & bytes

how computers store information

binary solo

delays? spaces? newlines?

...chord hits?

00000010000001100000011100001111

0

1

2

4

1

2

3

8

8

 256

9

512

  10

1024

17

131,072

18

262,144

25

33,554,432

= 33,949,455  :/

can you send messages
with just 1s and 0s?

"bytes"

if eggs came in packages of 8...

"bytes"

Every number is made of

exactly 8 bits (1s and 0s)

The highest number is only 255!

11111111 = 1 + 2 + ... + 127 = 255

00000010000001100000011100001111

00000010 00000110 00000111 00001111

= 2

= 6

= 7

= 15

= C

G

H

P ?????

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
A B C D E F G H I J K L M N O P

ASCII!

 0=[NUL]
 1=[SOH]
 2=[STX]
 3=[ETX]
 4=[EOT]
 5=[ENQ]
 6=[ACK]
 7=[BEL]
 8=[BS]
 9=[HT]
10=[LF]
11=[VT]
12=[FF]
13=[CR]
14=[SO]
15=[SI] 		16=[DLE]
17=[DC1]
18=[DC2]
19=[DC3]
20=[DC4]
21=[NAK]
22=[SYN]
23=[ETB]
24=[CAN]
25=[EM]
26=[SUB]
27=[ESC]
28=[FS]
29=[GS]
30=[RS]
31=[US] 		32=" "
33=!
34="
35=#
36=$
37=%
38=&
39='
40=(
41=)
42=*
43=+
44=,
45=-
46=.
47=/ 		48=0
49=1
50=2
51=3
52=4
53=5
54=6
55=7
56=8
57=9
58=:
59=;
60=<
61==
62=>
63=? 		64=@
65=A
66=B
67=C
68=D
69=E
70=F
71=G
72=H
73=I
74=J
75=K
76=L
77=M
78=N
79=O 		80=P
81=Q
82=R
83=S
84=T
85=U
86=V
87=W
88=X
89=Y
90=Z
91=[
92=\
93=]
94=^
95=_ 		 96=`
 97=a
 98=b
 99=c
100=d
101=e
102=f
103=g
104=h
105=i
106=j
107=k
108=l
109=m
110=n
111=o 		112=p
113=q
114=r
115=s
116=t
117=u
118=v
119=w
120=x
121=y
122=z
123={
124=|
125=}
126=~
127=[DEL]

1960s

dec hex binary ascii
65 0x41 0b01000001 A
66 0x42 0b01000010 B
67 0x43 0b01000011 C
68 0x44 0b01000100 D
69 0x45 0b01000101 E
70 0x46 0b01000110 F
71 0x47 0b01000111 G
72 0x48 0b01001000 H
73 0x49 0b01001001 I
74 0x4A 0b01001010 J
75 0x4B 0b01001011 K
76 0x4C 0b01001100 L
77 0x4D 0b01001101 M
78 0x4E 0b01001110 N
79 0x4F 0b01001111 O
dec hex binary ascii
80 0x50 0b01010000 P
81 0x51 0b01010001 Q
82 0x52 0b01010010 R
83 0x53 0b01010011 S
84 0x54 0b01010100 T
85 0x55 0b01010101 U
86 0x56 0b01010110 V
87 0x57 0b01010111 W
88 0x58 0b01011000 X
89 0x59 0b01011001 Y
90 0x59 0b01011010 Z

H

E

L

L

O

01001000 01000101 01001100 01001100 01001111

dec hex binary ascii
65 0x41 0b01000001 A
66 0x42 0b01000010 B
67 0x43 0b01000011 C
68 0x44 0b01000100 D
69 0x45 0b01000101 E
70 0x46 0b01000110 F
71 0x47 0b01000111 G
72 0x48 0b01001000 H
73 0x49 0b01001001 I
74 0x4A 0b01001010 J
75 0x4B 0b01001011 K
76 0x4C 0b01001100 L
77 0x4D 0b01001101 M
78 0x4E 0b01001110 N
79 0x4F 0b01001111 O
dec hex binary ascii
80 0x50 0b01010000 P
81 0x51 0b01010001 Q
82 0x52 0b01010010 R
83 0x53 0b01010011 S
84 0x54 0b01010100 T
85 0x55 0b01010101 U
86 0x56 0b01010110 V
87 0x57 0b01010111 W
88 0x58 0b01011000 X
89 0x59 0b01011001 Y
90 0x59 0b01011010 Z

???

00000010 00000110 0000111 00001111

[stx]

00000010 00000110 00000111 00001111

[ack]

[bel]

[si]

????

 0=[NUL]  1=[SOH]  2=[STX]  3=[ETX]  4=[EOT]  5=[ENQ]  6=[ACK]  7=[BEL]
 8=[BS]  9=[HT] 10=[LF] 11=[VT] 12=[FF] 13=[CR] 14=[SO] 15=[SI]

ASCII!

send messages

with 1s and 0s!

why ones and zeros?

Mark Stone/University of Washington

David Meerman Scott

washington.edu/news/2018/07/02/critical-fabulations/

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Reverb, LLC

philips electronics

get code

github link

binary solo!

✨️

0-serial-message.ino

unicode

ò ж  ҈  ☂ 🙀

⚠ technical digression ⚠

text: it�s hard

lunch!

then,

print messages

with 1s and 0s!

1-thermal-message.ino

Museum of Almost Realities

 

April Soetarman (2017)

 

almostrealities.org

print images

with 1s and 0s!

2-thermal-image.ino

Remembering

 

Nitcha Fame Tothong (2018)

print images

...with help from our computers!

3-thermal-image-easymode

scancam

 

Phil Schleihauf (2018)

 

phil.schleihauf.ca/2018/scancam

WeAreNotListening

 

Alice Woods, Seb Potter, Betsy Fore,

Tim Regan (2013)

 

alicewoods.co.uk/weaenotlistening

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