black cloud patterns toward the future
TRANSCRIPT
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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
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Black Cloud: Do not look
Orpheus and Eurydice
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Black Cloud: Look
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Five Virtues: Hyperlocal Data
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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
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Five Virtues: ARG Embodiment
Cloudy left the Building
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Five Virtues: Pattern Mods
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Five Virtues: All Ages
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Five Interfaces: Pufftron
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Five Interfaces: Pufftron Power
Likewise...
Common issue with protruding appendages...
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PoE48V 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 Dropex: Cell Modem 2A * (9-3.8)V =10.4W of heatImpractical for PoE at 48V
ex: 2A * (48-3.8)V = 88.4W of heat
Switching Regulator (MAX5090)More complicated implementationMore supply noise 90+% efficient
Five Interfaces: Pufftron Power
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Five Senses: Light
Sunlight is the source of all energy around here. Light-dark cycle controls circadian rhythmLight pollution clouds the night sky and disrupts the circadian rhythmOverexposure to artificial light has detrimental health effects
If you stay up late, keep the lights low.
Vishay TEMPT 6000:small footprint, linear output, precise position, accuracy and precision are high
Fixed alignment problem with old light sensor
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Five Senses: Temp. and Humidity
Temperature, to track heat waves and global warmingHVAC homeostasis produces straight temperature lines for indoor sensors. Outdoor sensors read distinct day-night cycles.
A green aesthetic would value the diurnal cycle over homeostasis.
Sensirion SHT-11: Digital Temperature and Humidity Sensor, accuracy and precision are high
Precalibrated14-bit ADC 2-Wire Serial Interface
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Noise pollution leads to hearing lossGreat indicator of place and activityEasy to test on sensor interactivelyGreat data from Zellerbach Hall and Zellerbach Parking in Berkeley.
A green aesthetic would seek to lower baseline dB.
dB (air pressure) sensor via microphone, accuracy is low, precision is moderate, calibration is poor, plenty of averaging, average of maxima are more revealing than plain averages.
Five Senses: Noise
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Five Senses: CO2
Tomato Quintet CO2 from human breath, rotting plants, and combustion (cars, industry, smoking) concrete curing and deep cleaning Egypt, Russia, UAE denied permissions to sense and share
A green aesthetic promotes data transparency.
DCS 305e Sensor: Laser CO2 absorption type: accuracy is moderate and precision is high, device is calibrated but drifts over periods of two years and needs to be recalibrated, consumes much power. Interface by pretending to be LED driver.
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Five Senses: VOCs
Volatile Organic Compounds include in alcohol (beer!), methane, 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
Figaro 2602 electrochemical VOC sensor, broad range of sensitivities, accuracy and precision are moderate, but good enough to see cycles of pollution and regeneration.
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Five Interfaces: Pufftron Comm.
Communication via SMS:Telit GM862-Quad Cellular ModemStrange 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 /Month1. At $0.02 per SMS for gateway
service: 1.1M*.02 = $22k/Month2. Or use AT&T SMS to email
gateway (text to 111)Backend: postfix -> procmail -> perl script that populates DB
Not viable for international deployment because different cell companies require custom firmware and custom plans.
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Five Interfaces: Pufftron Comm.
Communication via Ethernet:
WizNet100SR Daughterboardrequires PoE RJ45 connector with magneticsGets IP via DHCPConnects to hardcoded Server IPStreams serial from Microcontroller (AVR) to remote server (176 line of Perl)Server:
Accepts multiple connectionsgets data (querystring format)inserts data into DB
Next Steps:Wifi! (ZeroG)
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Five Senses: The Quiz
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Five Interfaces: Database
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Five Interfaces: Database
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Five Interfaces: Database
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Five Interfaces: Database
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Five Interfaces: Community Stories
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Five Interfaces: Community Stories
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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
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Five Interfaces: Alternate Reality
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Five Interfaces: Alternate Reality
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Five Interfaces: Alternate Reality
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Five Interfaces: Alternate Reality
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Five Interfaces: Direct Action
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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
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Five Virtues: Pattern Mod
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To our Sponsors: Thanks
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Counter-Narrative & Student Voice
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Engineering Perspective
Power Source : Battery, wall wart, PoE, SolarVoltage regulation (Linear vs. Switching)Physical power connector
Means of Remote TelemetryWired: Ethernet, USB, SerialWireless: Bluetooth, Zigbee, WiFi, Cellular
Local Display LED's vs Screens
SensorsRange, accuracy, precision CalibrationSensitivityInterfacing
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PowerInitial Implementation: Linear Regulation
HeatingPower = Current * Voltage Dropex: Cell Modem 2A * (9-3.8)V =10.4W of heat
Impractical for PoE at 48Vex: 2A * (48-3.8)V = 88.4W of heat!!
Next version: Switching Regulator (MAX5090)More complicated implementationMore supply noise 90+% efficient
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Display
Easy to read from a distance, but does not draw too much attentionMatrix of LEDs requires M+N I/O lines for MxN LEDsInterrupt routines update LEDs
Five Virtues: Ambient Display