Space Balloon BarCamp Nashville

So I Sent This Balloon Into Space...

#bcn11space

1Sunday, October 16, 2011

So I Sent This Balloon Into Space...

That’s Nashville!

#bcn11space


WTF


FAQ


FAQ• Why?


FAQ• Why?

• How high?


FAQ• Why?

• How high?

• Isn’t it like {cold,hot} up there?


FAQ• Why?

• How high?


• Where did it go?


FAQ• Why?

• How high?



• Is that legal?


FAQ• Why?

• How high?



• Is that legal?

• Cost?


FAQ• Why?

• How high?



• Is that legal?

• Cost?

• Man you guys are geeks...


Why?


Why?

• Space is awesome!


Why?


• Kinda easy now. Kinda.


Why?


• Kinda easy now. Kinda.

• Epic Geek Show off at Talent Night





Talent Night Video



How high did it go?


How high did it go?

• In short, as high as we told it to.


How high did it go?

• In short, as high as we told it to.

• But how do we *know* how high it went?


http://en.wikipedia.org/wiki/Atmospheric_pressure




http://www.csgnetwork.com/pressurealtcalc.html

Uh, yeah. Google!




0.93% ATMNo air.


How high up did it go?102,496 feet or almost 20 miles!


Wasn’t it cold? Or Hot? Or something?


Totally.

Space is pretty unforgiving...


-60F!Very cold


Where did it go?


http://habhub.org/predict




Predicted

~100 miles


Actual

137 miles


Recovery Path = 178mi


Is that Legal?


Yes. Kinda.

• Less than 4lb (1500g)

• Not too dense (< 3oz per sq inch)

• Rope < 50lb strength


NOTAM

• Courtesy to Aviators

• Helps with safety

• Need to know NM and direction from nearest airport and timelines

• Be precise

• http://en.wikipedia.org/wiki/NOTAM


What’d it cost?


Item Cost Weight (g)

arduino nano 168 $0 62x6in proto board $3 64GB Micro SD Card $82x 555 TS555CN Timers $24x AA-Battery USB pack $8 145openlog sd-card logger $25MMA7260 Accelerometer $10Humirel Humidity Sensor + Parts $20Humidity Sensor Proto Board $232x DS18B20 Digital Temperature Sensor $5LED LightsInstamapper $0 0Styrofoam Container $0 266Motorola iDEN phone i465 $0 99Video Camera 1 $111 100StillCamera 1 - goPro $0 139Still Camera 2 - Canon A540 $0 235Parachute - 48" $27Cording (50lb ~60')Spot $0 209Balloon x 2 $232Helium x 2 $161Pressure Regulator $75Filling Hose $15Kapton Tape to seal the box.Totals $709.90 1,206Allowance 1500Delta -293.99


Geek Time


Arduino Web Site


Flight Computer


• Arduino Nano 168

Flight Computer



• Barometric Pressure Sensor

Flight Computer




• Accelerometer

Flight Computer




• Accelerometer

• Internal Temp Sensor

Flight Computer




• Accelerometer


• External Temp Sensor (1 wire)

Flight Computer




• Accelerometer



• Open Data Logger

Flight Computer




• Accelerometer



• Open Data Logger

• LED Safety Lights

Flight Computer


Arduino Nano 168 Based32Sunday, October 16, 2011

#include "Wire.h"#include "OneWire.h"

#define BMP085_ADDRESS 0x77 // I2C address of BMP085#define pinx 0 // Analog pin the X output is connected to.#define piny 1 // Analog pin the Y output is connected to.#define pinz 2 // Analog pin the Z output is connected to.#define ledPin 5 // Digital Pin 5 for blinking LEDs

<snip>

void mma7260q(void) { sIn = Serial.read(); // Read data from the serial port and shove it into a variable. switch (sIn){ // Tells the Arduino what to do with the serial data. case '1': // If the serial data is a 1 ... digitalWrite(GS1, LOW); // Bring GS1 low. digitalWrite(GS2, LOW); // Bring GS2 low. break; // Done with this data now. We are now in the 1.5g mode. case '2': // If the serial data is a 1 ... digitalWrite(GS1, HIGH); // Turn GS1 high. digitalWrite(GS2, LOW); // And pull GS2 low. break; // Done. We are now in 2g mode. case '4': // If the serial data is a 4 ... digitalWrite(GS2, HIGH); // Bring GS2 high. digitalWrite(GS1, LOW); // And bring GS1 low. break; // Done. We are now in 4g mode. case '6': // If the serial data is a 6 ... digitalWrite(GS1, HIGH); // Bring GS1 high. digitalWrite(GS2, HIGH); // And bring GS2 high also break; // We are now in 6g mode. } // Done with the serial data now. Serial.print("A:x="); Serial.print(analogRead(pinx)); Serial.print(" y="); Serial.print(analogRead(piny)); Serial.print(" z="); Serial.print(analogRead(pinz)); Serial.print(";");}


// Calculate temperature given ut.// Value returned will be in units of 0.1 deg Cshort bmp085GetTemperature(unsigned int ut){ long x1, x2; x1 = (((long)ut - (long)ac6)*(long)ac5) >> 15; x2 = ((long)mc << 11)/(x1 + md); b5 = x1 + x2;

return ((b5 + 8)>>4); }


Serial.print(" F="); Serial.print(fehr); Serial.print(";"); mma7260q(); blinkLED(ledPin); temperature = bmp085GetTemperature(bmp085ReadUT()); pressure = bmp085GetPressure(bmp085ReadUP()); Serial.print("bmp085 temp="); Serial.print(temperature,DEC); Serial.print(" pa="); Serial.print(pressure,DEC); Serial.print(";"); Serial.print("^\n");


Which produced....


CRC=1B C=9.25 F=48.65;A:x=326 y=310 z=168;bmp085 temp=163 pa=100090;^2R=28:D:9:DC:2:0:0:FB CRC=6 C=12.25 F=54.05;A:x=331 y=301 z=166;bmp085 temp=160 pa=99995;^1R=28:14:25:DC:2:0:0:EF CRC=1B C=9.25 F=48.65;A:x=315 y=286 z=167;bmp085 temp=161 pa=100001;^2R=28:D:9:DC:2:0:0:FB CRC=2B C=12.31 F=54.16;A:x=335 y=313 z=185;bmp085 temp=162 pa=100033;^1R=28:14:25:DC:2:0:0:EF CRC=1B C=9.25 F=48.65;A:x=324 y=317 z=168;bmp085 temp=164 pa=100117;^2R=28:D:9:DC:2:0:0:FB CRC=2A C=12.37 F=54.27;A:x=331 y=300 z=189;bmp085 temp=159 pa=99935;^1R=28:14:25:DC:2:0:0:EF CRC=36 C=9.31 F=48.76;A:x=318 y=286 z=168;bmp085 temp=157 pa=99859;^2R=28:D:9:DC:2:0:0:FB CRC=6 C=12.25 F=54.05;A:x=289 y=302 z=129;bmp085 temp=166 pa=100146;^1R=28:14:25:DC:2:0:0:EF CRC=1B C=9.25 F=48.65;A:x=298 y=291 z=167;bmp085 temp=164 pa=100165;^2R=28:D:9:DC:2:0:0:FB CRC=12 C=12.18 F=53.92;A:x=319 y=317 z=164;bmp085 temp=162 pa=100159;^1R=28:14:25:DC:2:0:0:EF CRC=1B C=9.25 F=48.65;A:x=295 y=297 z=165;bmp085 temp=161 pa=100159;^2R=28:D:9:DC:2:0:0:FB CRC=6 C=12.25 F=54.05;A:x=308 y=318 z=175;bmp085 temp=160 pa=100174;^1R=28:14:25:DC:2:0:0:EF CRC=1B C=9.25 F=48.65;A:x=299 y=293 z=177;bmp085 temp=159 pa=100168;^2R=28:D:9:DC:2:0:0:FB CRC=2B C=12.31 F=54.16;A:x=315 y=316 z=176;bmp085 temp=158 pa=100168;^1R=28:14:25:DC:2:0:0:EF CRC=36 C=9.31 F=48.76;A:x=295 y=295 z=164;bmp085 temp=157 pa=100162;^2R=28:D:9:DC:2:0:0:FB CRC=2A C=12.37 F=54.27;A:x=317 y=310 z=175;bmp085 temp=156 pa=100131;^1R=28:14:25:DC:2:0:0:EF CRC=36 C=9.31 F=48.76;A:x=301 y=293 z=166;bmp085 temp=156 pa=100143;^2R=28:D:9:DC:2:0:0:FB CRC=2A C=12.37 F=54.27;A:x=315 y=310 z=173;bmp085 temp=156 pa=100140;^1R=28:14:25:DC:2:0:0:EF CRC=36 C=9.31 F=48.76;A:x=304 y=299 z=166;bmp085 temp=155 pa=100156;^2R=28:D:9:DC:2:0:0:FB CRC=2A C=12.37 F=54.27;A:x=318 y=312 z=176;bmp085 temp=155 pa=100143;^1R=28:14:25:DC:2:0:0:EF CRC=36 C=9.31 F=48.76;A:x=299 y=295 z=167;bmp085 temp=155 pa=100162;^2R=28:D:9:DC:2:0:0:FB CRC=3C C=12.43 F=54.37;A:x=312 y=312 z=176;bmp085 temp=154 pa=100153;^1R=28:14:25:DC:2:0:0:EF CRC=37 C=9.37 F=48.87;A:x=295 y=310 z=164;bmp085 temp=154 pa=100145;^2R=28:D:9:DC:2:0:0:FB CRC=3C C=12.43 F=54.37;A:x=313 y=311 z=176;bmp085 temp=153 pa=100140;^1R=28:14:25:DC:2:0:0:EF CRC=36 C=9.31 F=48.76;A:x=301 y=296 z=165;bmp085 temp=153 pa=100134;^2R=28:D:9:DC:2:0:0:FB CRC=2 C=12.50 F=54.50;A:x=317 y=313 z=181;bmp085 temp=153 pa=100145;^1R=28:14:25:DC:2:0:0:EF CRC=36 C=9.31 F=48.76;A:x=298 y=293 z=167;bmp085 temp=152 pa=100137;^2R=28:D:9:DC:2:0:0:FB CRC=2 C=12.50 F=54.50;A:x=315 y=312 z=174;bmp085 temp=152 pa=100140;^1R=28:14:25:DC:2:0:0:EF CRC=36 C=9.31 F=48.76;A:x=298 y=295 z=172;bmp085 temp=152 pa=100145;^2R=28:D:9:DC:2:0:0:FB CRC=59 C=12.56 F=54.61;A:x=314 y=310 z=173;bmp085 temp=152 pa=100156;^1R=28:14:25:DC:2:0:0:EF CRC=37 C=9.37 F=48.87;A:x=301 y=295 z=164;bmp085 temp=152 pa=100153;^2R=28:D:9:DC:2:0:0:FB CRC=59 C=12.56 F=54.61;A:x=326 y=346 z=157;bmp085 temp=151 pa=100140;^1R=28:14:25:DC:2:0:0:EF CRC=37 C=9.37 F=48.87;A:x=306 y=306 z=172;bmp085 temp=151 pa=100134;^2R=28:D:9:DC:2:0:0:FB CRC=58 C=12.62 F=54.72;A:x=325 y=336 z=172;bmp085 temp=151 pa=100145;^

1R=28:14:25:DC:2:0:0:EF CRC=1B C=9.25 F=48.65;A:x=302 y=328 z=190;bmp085 temp=151 pa=100137;^2R=28:D:9:DC:2:0:0:FB CRC=58 C=12.62 F=54.72;A:x=334 y=341 z=195;bmp085 temp=151 pa=100122;^1R=28:14:25:DC:2:0:0:EF CRC=19 C=9.12 F=48.42;A:x=317 y=291 z=183;bmp085 temp=150 pa=100125;^2R=28:D:9:DC:2:0:0:FB CRC=4E C=12.68 F=54.82;A:x=331 y=316 z=190;bmp085 temp=150 pa=100140;^1R=28:14:25:DC:2:0:0:EF CRC=7 C=8.68 F=47.62;A:x=317 y=300 z=170;bmp085 temp=150 pa=100128;^2R=28:D:9:DC:2:0:0:FB CRC=4E C=12.68 F=54.82;A:x=319 y=315 z=179;bmp085 temp=151 pa=100150;^1R=28:14:25:DC:2:0:0:EF CRC=62 C=8.31 F=46.96;A:x=300 y=303 z=184;bmp085 temp=150 pa=100153;^2R=28:D:9:DC:2:0:0:FB CRC=5A C=12.75 F=54.95;A:x=328 y=318 z=170;bmp085 temp=150 pa=100162;^1R=28:14:25:DC:2:0:0:EF CRC=5B C=8.18 F=46.72;A:x=306 y=291 z=165;bmp085 temp=150 pa=100171;^2R=28:D:9:DC:2:0:0:FB CRC=5A C=12.75 F=54.95;A:x=313 y=307 z=173;bmp085 temp=150 pa=100162;^1R=28:14:25:DC:2:0:0:EF CRC=4F C=8.25 F=46.85;A:x=297 y=296 z=171;bmp085 temp=150 pa=100153;^2R=28:D:9:DC:2:0:0:FB CRC=77 C=12.81 F=55.06;A:x=312 y=306 z=174;bmp085 temp=149 pa=100156;^1R=28:14:25:DC:2:0:0:EF CRC=62 C=8.31 F=46.96;A:x=298 y=292 z=165;bmp085 temp=149 pa=100165;^2R=28:D:9:DC:2:0:0:FB CRC=5A C=12.75 F=54.95;A:x=314 y=307 z=175;bmp085 temp=149 pa=100162;^1R=28:14:25:DC:2:0:0:EF CRC=62 C=8.31 F=46.96;A:x=298 y=291 z=167;bmp085 temp=149 pa=100159;^2R=28:D:9:DC:2:0:0:FB CRC=77 C=12.81 F=55.06;A:x=318 y=307 z=175;bmp085 temp=149 pa=100170;^1R=28:14:25:DC:2:0:0:EF CRC=63 C=8.37 F=47.07;A:x=296 y=290 z=167;bmp085 temp=149 pa=100168;^2R=28:D:9:DC:2:0:0:FB CRC=77 C=12.81 F=55.06;A:x=315 y=307 z=174;bmp085 temp=149 pa=100170;^1R=28:14:25:DC:2:0:0:EF CRC=63 C=8.37 F=47.07;A:x=303 y=281 z=168;bmp085 temp=149 pa=100173;^2R=28:D:9:DC:2:0:0:FB CRC=76 C=12.87 F=55.17;A:x=306 y=314 z=167;bmp085 temp=148 pa=100159;^1R=28:14:25:DC:2:0:0:EF CRC=75 C=8.43 F=47.17;A:x=299 y=290 z=166;bmp085 temp=148 pa=100162;^2R=28:D:9:DC:2:0:0:FB CRC=76 C=12.87 F=55.17;A:x=308 y=311 z=175;bmp085 temp=148 pa=100176;^1R=28:14:25:DC:2:0:0:EF CRC=75 C=8.43 F=47.17;A:x=298 y=299 z=180;bmp085 temp=148 pa=100162;^2R=28:D:9:DC:2:0:0:FB CRC=76 C=12.87 F=55.17;A:x=312 y=307 z=176;bmp085 temp=148 pa=100168;^1R=28:14:25:DC:2:0:0:EF CRC=4B C=8.50 F=47.30;A:x=295 y=292 z=167;bmp085 temp=148 pa=100153;^2R=28:D:9:DC:2:0:0:FB CRC=60 C=12.93 F=55.27;A:x=311 y=309 z=180;bmp085 temp=148 pa=100170;^1R=28:14:25:DC:2:0:0:EF CRC=10 C=8.56 F=47.41;A:x=295 y=294 z=173;bmp085 temp=148 pa=100159;^2R=28:D:9:DC:2:0:0:FB CRC=60 C=12.93 F=55.27;A:x=315 y=307 z=179;bmp085 temp=147 pa=100156;^1R=28:14:25:DC:2:0:0:EF CRC=10 C=8.56 F=47.41;A:x=295 y=291 z=167;bmp085 temp=147 pa=100159;^2R=28:D:9:DC:2:0:0:FB CRC=60 C=12.93 F=55.27;A:x=312 y=307 z=175;bmp085 temp=147 pa=100168;^1R=28:14:25:DC:2:0:0:EF CRC=10 C=8.56 F=47.41;A:x=298 y=294 z=165;bmp085 temp=147 pa=100159;^


So what?


10 MPH up, 245 MPH down!9 MPH at landing though, *phew*.


Blinkenlichten



Show-n-tell


Picture Time


Us!


Kentucky Lake


Oooooo, airplanes! Pretty!


Oooooo, airplanes! Pretty close too!!!


Curvature and space!


Nashville


Chattanooga, Manchester and McMinnville.


Nashville, LaVergne, Cool Springs and Franklin.


Murfreesboro


Hey! That’s above us!




Landing spot!




Movie Time








Gotchas


Gotchas

• Testing, testing, testing...


Gotchas


• Don’t get too excited


Gotchas



• Low wind


Gotchas



• Low wind

• Plan for failure - it’s still learning!


Thanks to...

• Emma

• Marc Powell

• Jared Cluff

• Multitude of Groupies


Questions?

• Slide material, pics, videos to be posted later today...

• http://mybrainhurts.com/blog/

• #bcn11space

• @n8foo


http://mybrainhurts.com/blog/

http://mybrainhurts.com/blog/

Technology

Space Balloon BarCamp Nashville