Team Victorious SecretFinal Presentation

Crawford LeedsJacob Broadway

Tanya HardonDevan Corona

Dylan Reed

November 29, 2011

• Effects of high altitude • Individual effects of high altitude • Space elevator protection • Lack of applicable information

Mission Overview

Arduino to measure: Pressure Temperature Humidity

HOBO for temperature and humidity Spy cameras LED array

Design Overview

Functional Block Diagram

Originally had accelerometer Added 2 pressure sensors Added 2 humidity sensors Changed from 2 to 4 cockroaches Added additional LEDs

Design Overview

Predicted: Video cameras would record

whole flight Arduino would collect data Burst at 30,480 m HOBO would collect data

successfully 2 cockroaches would survive Structure would hold

What really happened:

Video cameras shut off at 35 and 37 minutes

Arduino did not collect data Burst at 22,000 m HOBO collected temperature

and humidity data successfully

2 cockroaches survived Structure held

Results and Analysis

Results and AnalysisP

ress

ure

(mb)

Duration (s)

Pressure

Start of

depressuriza

tio

n

Restored pressure

Results and Analysis

External TemperatureLaunch

Burst

Landing

Tropopaus

e

Results and Analysis

Internal Temperature

Landing

BurstLaunch

Tropopause

Cockroach

Arduino Failure Did not record any data

Fixed by shorting reset pin Data now recording

Failure Analysis

Two unheated cockroaches died Two heated cockroaches lived Cold is most detrimental Most important for high altitude space elevator is

thermal control Unsure of effects of pressure on humans                   

Humans less resilient than cockroaches Can only know for sure cold at 22,000 m will kill a

person

Conclusions

Keep subsystems better isolated while loading cockroaches

Test arduino in morning before at launch site Get programing done earlier DO NOT DRIP EPOXY

Lessons Learned

Isolate and feed cockroaches until launch Keep satellite away from extreme environmental factors. To activate payload: Put cockroaches in containers and seal two pressured

boxes using epoxy 24 hours before launch. Set hobo to run at the designated time. Turn on all switches including camera button. Reset micro SD shield until yellow light blinks. Turn on both video cameras Seal box with aluminum

Ready to fly again

Requirement Compliance Matrix

Requirement

Detail

A RoachSat successfully ascended to approximately 22,000 meters by balloon on November 5 ,2011

B Weight was accepted at 905gC RoachSat carried 4 cockroachesD RoachSat descended safely to groundA.1 RoachSat remained attached to balloonB Passed final weigh-inC.1 Control cockroach was presentC.2 Cockroach 1 was presentC.3 Cockroach 2 was presentC.4 Cockroach 3 was presentC.5 Cockroach 4 was presentD.1 Structure remained intactD.2 Attachments were secure

Level0

1

Mass/Cost Final BudgetItem Cost Source of

purchaseWeight (G)

Digital camera with 2gb Memory card

Provided Provided in class 130

HOBO Data logger Provided Provided in class 30Heater Kit Provided Provided in class 100Switches Provided Provided in class 15USA Flag sticker Provided Provided in class .2Flight tube Provided Provided in class 47Foam Core Provided Provided in class 1402 Lithium 9V batteries Provided Provided in class 652 Lithium AA batteries Provided Provided in class 293 Alkaline 9V batteries Provided Provided in class Part of

heaterAluminum tape Provided Provided in class 10Hot glue Provided Provided in class 10Velcro Provided Provided in class 10

Mass/Cost Final BudgetItem Cost Source of purchase Weight (G)

Insulation Provided Provided in class 50Test batteries $8.38 Target N/ADry ice $6.48 King Soopers N/AArduino Omega 2560 (did not fly)

$58.95 SparkFun N/A

Arduino Uno Provided Space Grant 32 2 Humidity sensor- HIH-4030 Breakout 

$33.90 SparkFun 2

2 Barometric Pressure Sensor - BMP085 Breakout

$39.90 SparkFun 20

10 cockroaches $16.00 www.buydubiaroaches.com

52

Micro SD shield $14.95 SparkFun N/AMicro SD shield N/A Borrowed from team 3 22 micro SD card $19.98 Target 2.8Cockroach containers $7.90 Container store 1203 White Led Lights $2.85 SparkFun 3

Mass/Cost Final Budget

Item Cost Source of purchase Weight (G)

3 White LED Lights $15.90 McGuckins 36-330 Ohm Resistor Ohm 1/6th Watt PTH

$2.50 SparkFun 2

2-720 x 480 Hi-Res Key Chain Car Remote Spy Camera DVR

$11.22 www.tmart.com 15

Proposed Total (team provided materials not included in total)

$224.05 896

Actual value $188.96   945

I promise you, this class is harder than you think it is. Be prepared for all-nighters, because you’ll probably pull at least one. You will work a ridiculous amount of hours in preparation for the flight, but as soon as that balloon takes off, it will suddenly all be worth it. Also, TEST EVERYTHING. If you don’t think something needs to be tested, test it anyway. Teamwork is the most important thing to a successful satellite. If you don’t get along with someone on your team, suck it up and put the team on your back.  For Madden. 

Message to next year