Patterns Towards Da Future
Antero Garcia,
Reza Naima and
Greg Niemeyer (PI)
with Rhea Cortado,
Laura Greig, Nik Hanselmann,
Eric Kaltman, and Daye Rogers
Thanks, Dan and BAM

Black Cloud: Do not look
Orpheus and Eurydice

Black Cloud: Look

Five Virtues: Hyperlocal Data

Five Virtues: ARG Embodiment
With increasing maturity,
activity which does not give
back results of tangible and
visible achievement loses its
interest.
(John Dewey, Democracy
and Education 1916).
Play and games are “relief
from the tedium and strain of
‘regular’ school work.\"

Five Virtues: ARG Embodiment
Cloudy left the Building

Five Virtues: Pattern Mods

Five Virtues: All Ages

Five Interfaces: Pufftron

Five Interfaces: Pufftron Power
Common issue with protruding appendages...
Likewise...

Five Interfaces: Pufftron Power
PoE
48V over unused wires in cable
Aesthetic and practical benefits of only having one
connector
RJ45 Connector is robust
Linear Regulation (first version)
Heating Power = Current * Voltage Drop
ex: Cell Modem 2A * (9-3.8)V =10.4W of heat
Impractical for PoE at 48V
ex: 2A * (48-3.8)V = 88.4W of heat
Switching Regulator (MAX5090)
More complicated implementation
More supply noise
90+% efficient

Five Senses: Light
Sunlight is the source of
all energy around here.
Vishay TEMPT 6000:
Light-dark cycle controls
small footprint, linear
circadian rhythm
output, precise position,
Light pollution clouds the
accuracy and precision are
night sky and disrupts the
high
circadian rhythm
Overexposure to artificial
light has detrimental
health effects
Fixed
If you stay up late, keep the alignment
lights low. problem with
old light sensor

Five Senses: Temp. and Humidity
Temperature, to track
heat waves and global
warming
HVAC homeostasis
produces straight
temperature lines for
indoor sensors. Sensirion SHT-11: Digital
Outdoor sensors read Temperature and Humidity
distinct day-night cycles. Sensor, accuracy and
precision are high
A green aesthetic would
value the diurnal cycle over Precalibrated
homeostasis. 14-bit ADC
2-Wire Serial Interface

Five Senses: Noise
Noise pollution leads to
hearing loss dB (air pressure) sensor via
Great indicator of place microphone, accuracy is low,
and activity precision is moderate,
Easy to test on sensor calibration is poor, plenty of
interactively averaging, average of
Great data from maxima are more revealing
Zellerbach Hall and than plain averages.
Zellerbach Parking in
Berkeley.
A green aesthetic would
seek to lower baseline dB.

Five Senses: CO2
DCS 305e Sensor:
Laser CO2 absorption
Tomato Quintet type: accuracy is moderate and
CO2 from human breath, precision is high, device is
rotting plants, and calibrated but drifts over periods
combustion (cars, of two years and needs to be
industry, smoking) recalibrated, consumes much
concrete curing and power. Interface by pretending to
deep cleaning be LED driver.
Egypt, Russia, UAE
denied permissions to
sense and share
A green aesthetic promotes
data transparency.

Five Senses: VOCs Figaro 2602
electrochemical VOC
sensor, broad range of
sensitivities, accuracy and
precision are moderate,
Volatile Organic
but good enough to see
Compounds include in
cycles of pollution and
alcohol (beer!), methane,
regeneration.
tetrachloroethylene,
solvents, paint
Dry cleaners observed
buildup over week,
decided to vent more, but
energy cost was too high.
A green aesthetic would
reduce frequency and
increase regeneration

Five Interfaces: Pufftron Comm.
Communication via SMS:
Telit GM862-Quad Cellular
Modem
Strange Interface (implement faux-
pushbuttons)
bursts to 2A of current consumption
when transmitting
TX: AT&T Unlimited SMS plan
RX: 25 * 60 * 24 * 31= 1.1 Million
Messages /Month Not viable for international
1. At $0.02 per SMS for gateway deployment because different
service: 1.1M*.02 = $22k/Month cell companies require custom
2. Or use AT&T SMS to email firmware and custom plans.
gateway (text to 111)
Backend: postfix -> procmail -> perl
script that populates DB

Five Interfaces: Pufftron Comm.
Communication via
Ethernet:
WizNet100SR Daughterboard
requires PoE RJ45 connector
with magnetics
Gets IP via DHCP
Connects to hardcoded Server
IP
Streams serial from
Next Steps:
Microcontroller (AVR) to
Wifi! (ZeroG)
remote server (176 line of Perl)
Server:
Accepts multiple
connections
gets data (querystring
format)

Five Senses: The Quiz

Five Interfaces: Database

Five Interfaces: Database

Five Interfaces: Database

Five Interfaces: Database

Five Interfaces: Community Stories

Five Interfaces: Community Stories

Five Interfaces: Community Stories
“A genuine community life does not
organize itself in an enduring way
purely spontaneously. It requires
thought and planning ahead. The
educator is responsible for a
knowledge of individuals and for a
knowledge of subject-matter that
will enable activities to be selected
which lend themselves to social
organization … and in which the
activities in which all participate are
the chief carrier of control”.
–John Dewey,
Experience and Education, 1938

Five Interfaces: Alternate Reality

Five Interfaces: Alternate Reality

Five Interfaces: Alternate Reality

Five Interfaces: Alternate Reality

Five Interfaces: Direct Action

Five Interfaces: Direct Action
“Gardening … need not be taught
either for the sake of preparing future
gardeners, or as an agreeable way
of passing time. It affords an avenue
of approach to knowledge of the
place and farming and horticulture
have had in the history of the race
and which they occupy in present
social organization”
–John Dewey
Democracy and Education, 1916

Five Virtues: Pattern Mod

To our Sponsors: Thanks

Counter-Narrative & Student Voice

Engineering Perspective
Power
Source : Battery, wall wart, PoE, Solar
Voltage regulation (Linear vs. Switching)
Physical power connector
Means of Remote Telemetry
Wired: Ethernet, USB, Serial
Wireless: Bluetooth, Zigbee, WiFi, Cellular
Local Display
LED's vs Screens
Sensors
Range, accuracy, precision
Calibration
Sensitivity
Interfacing

Power
Initial Implementation: Linear Regulation
HeatingPower = Current * Voltage Drop
ex: Cell Modem 2A * (9-3.8)V =10.4W of heat
Impractical for PoE at 48V
ex: 2A * (48-3.8)V = 88.4W of heat!!
Next version: Switching Regulator (MAX5090)
More complicated implementation
More supply noise
90+% efficient

Five Virtues: Ambient Display
Display
Easy to read from a
distance, but does not
draw too much attention
Matrix of LEDs requires
M+N I/O lines for MxN
LEDs
Interrupt routines
update LEDs