binary solo

introductions

Name
Preferred pronouns
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!

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

⚠ 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 ⚠

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

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

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]

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

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]

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?

unicode

ò ж ҈ ☂ 🙀

⚠ technical digression ⚠

text: it�s hard

bigger numbers

and other kinds of data

⚠ technical digression ⚠

get code

binary solo!

✨️

0-serial-message.ino

print messages

with 1s and 0s!

1-thermal-message.ino

print images

with 1s and 0s!

2-thermal-image.ino

thermal printer art

The Counter Button

(Object #1)

Ailadi, 2018

WeAreNotListening

Alice Woods, Seb Potter, Betsy Fore,

Tim Regan (2013)

alicewoods.co.uk/weaenotlistening

Tape Recorders

Raphael Lozano-Hemmer (2011)

lozano-hemmer.com/tape_recorders.php

Remembering

Nitcha Fame Tothong (2018)

binary solo

introductions

Conduct

Social Rules

(core content!)

(technical digressions!)

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, …

the normal way

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

the normal way

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

delete the 9s!

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

… 18, 19, 20, 21, …

… 88, 89, 90, 91, … 99, 100, 101, …

delete the 9s!

0, 1, 2, 3, 4, 5, 6, 7, 8, 10, 11, …

… 18, 20, 21, …

… 88, 100, 101, …

how about the 8s!

0, 1, 2, 3, 4, 5, 6, 7, 10, 11, …

… 16, 17, 20, 21, …

… 76, 77, 100, 101, …

…

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

the last two digits!

the last two digits!

0, 1, 10, 11, 100, 101, 110, 111, …

count to 10000

(in binary 😉)

places: decimal

places: decimal

places: decimal

places: binary!

places: binary!

places: binary!

send messages

with 1s and 0s?

hexadecimal

base 16!

hexadecimal

base 16!

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

(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

all your
feelings
are valid

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

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