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Gateway To Space ASEN / ASTR 2500 Class #06. T-58. Colorado Space Grant Consortium. Today:. Today:. Announcements One Minute Reports HOBOs, Cameras, Foamcore, Insulation, Multimeters Next Tuesday is catch up and in class team time. Announcements:. Website now has presentations

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Presentation Transcript
slide1

Gateway To Space

ASEN / ASTR 2500

Class #06

T-58

Colorado Space Grant Consortium

slide3

Today:

  • Announcements
  • One Minute Reports
  • HOBOs, Cameras, Foamcore, Insulation, Multimeters
  • Next Tuesday is catch up and in class team time
slide4

Announcements:

  • Website now has presentations
  • Give man a fish…
  • Innovate ideas don’t have solutions
  • - Breadcrumbs (HW)
slide5

Foamcore

ASEN / ASTR 2500

Colorado Space Grant Consortium

slide6

Hands-on: Construction and Integration

- BalloonSats are commonly made of foam core

- Foam core is a simple, low cost composite panel

- You will use hot glue and Xacto knives to create your box

- There is a OK way of building with foam core

- Cut individual pieces and glue them together

- This way works but is not the best and requires

more “belts and suspenders”

slide7

BalloonSat Construction:

- There is a BETTER way of building with foam core

- Requires algebra and geometry

- See paper in back of

your course book

-

slide8

BalloonSat Construction:

- When cutting foam core, remember you are cutting through three layers

- Best to cut each layer individually

- Go slow, use metal edge ruler

- Be mindful

slide9

BalloonSat Construction:

- Step 1: Layout box design on foam core sheet

In the interest of time, each team will be given a pre-traced foam board (black with labels)

slide11

BalloonSat Construction:

- Step 2: Cut it out

slide12

BalloonSat Construction:

- Step 2: Cut it out

slide13

Hands-on: Construction and Integration

- Draw center lines between inner and outer lines

- All edge cuts are at 45 degree angles to the centerline

- Cut inside edges first and only through top paper and foam not bottom paper (hinge)

- Cut outside edges last but all the way through

- Go Slow and don’t cut the tables

- Please dispose of Xacto blades properly

slide15

Hands-on: Construction and Integration

- Cut holes for switch and camera lens

- Cut hole through center for balloon attachment tube

slide16

BalloonSat Construction:

- Step 3: Practice integration and make modifications

Hold box together and figure out how much insulation you want to use. Will affect how your components sit in box

slide17

BalloonSat Construction:

- Step 4: Glue it together and strengthen corners

- Your template was designed using the “Better Method”

- After gluing, cover you seams with aluminum tape

- Please don’t go overboard, weight is still an issue

slide18

BalloonSat Construction:

- Step 4: Glue it together and strengthen corners

slide19

BalloonSat Construction:

Things to remember: You only have one

- Switches

slide20

Hands-on: Construction and Integration

- Install switches to box and glue switches in place from back side before making electrical connections

- Keep switches on both sides and label ON/OFF positions

- Make sure to re-connect the switch

slide21

Hands-on: Construction and Integration

- Balloon attachment tube hole should run through center of box on non-opening side

- Make hole diameter as close to tube diameter as possible

- Secure with paper clip

- Make sure paper clip does not interfere with inner diameter

slide22

BalloonSat Construction:

Resources available for checkout:

- Soldering stations

- ½” and ¼” foam insulation

- Foamcore

- Velcro

- Tape

- Peace and love

slide23

Multimeters

ASEN / ASTR 2500

Colorado Space Grant Consortium

slide26

Voltmeter 101:

-

This is the set up typically used

slide27

Voltmeter 101:

Use this setting to check resistor values

-

slide28

Voltmeter 101:

Use this setting to check DC voltage

-

slide29

Voltmeter 101:

Use this setting to check continuity

-

slide30

HOBOs

ASEN / ASTR 2500

Colorado Space Grant Consortium

slide32

HOBO Data Logger

RH

Sensor

External

Channels

LED

Indicator

Temp

Sensor

Serial

Port

slide33

Battery

(back side)

HOBO Data Logger

RH

Sensor

External

Channels

LED

Indicator

Temp

Sensor

Serial

Port

slide34

HOBO Data Logger

  • Data Loggers our like our “Black Boxes”

Burst (30 km)

Landing

Launch

Coldest

Tropopause

slide35

Hands-on: Temperature Experiment

Step 4: Connect Temperature cable (TMC1-HA) to channel 4 on HOBO Computer

slide36

Hands-on: Temperature Experiment

Step 7: Start HOBO Box Car 3.7 software

slide37

Hands-on: Temperature Experiment

Step 8: Launch HOBO computer

slide38

Hands-on: Temperature Experiment

Step 9: Check Battery & select “Enable/Disable Channels”

slide39

Hands-on: Temperature Experiment

Step 10: Select Channel 4

slide40

Hands-on: Temperature Experiment

Step 11: Select correct temperature cable

slide41

Hands-on: Temperature Experiment

Step 14: Select Data sampling or interval

slide42

Hands-on: Temperature Experiment

Step 15: Confirm Settings and select Start

slide43

Hands-on: Temperature Experiment

Step 16: Unplug PC cable from HOBO

slide45

Hands-on: Temperature Experiment

Step 17: Give your HOBO sensor some data

slide46

Hands-on: Temperature Experiment

Step 18: Connect PC Cable to HOBO

Step 19: Select Readout

slide47

Hands-on: Temperature Experiment

Step 20: Verify data download

slide48

Hands-on: Temperature Experiment

Step 21: Disconnect PC cable from HOBO

slide51

Hands-on: Temperature Experiment

Step 24: Change data channel

slide52

Hands-on: Temperature Experiment

Step 25: View Data from Channel 4

slide54

Hands-on: Temperature Experiment

To save time tomorrow and launch day…

- IMPORTANT:

Make sure laptop time and date is correct for Colorado Mountain Daylight Time

slide55

Hands-on: Temperature Experiment

- Repeat Steps 1 through 13

- Step 26: Set sampling rate to 15 Sec

- This will give you over 8 hours of data

slide56

Hands-on: Temperature Experiment

- Step 27: Select Delay Start

- Step 28: Set the date and time to 07-15-06 at 7:00 AM

- Step 29: Select Start

slide57

Hands-on: Temperature Experiment

Step 30: Unplug PC cable from HOBO

slide58

Hands-on: Temperature Experiment

Step 31: Store HOBO and cables in box

This concludes the set and initialization for the Temperature and Solar Experiments

slide59

Heaters

ASEN / ASTR 2500

Colorado Space Grant Consortium

slide61

Environments at 30 km:

- You need to do something to keep your systems warm

- Colorado history has shown payloads (batteries) begin to fail below -5°C

- Hand warmers don’t work well without air (O2)

- You will use an active heater

slide62

Environments at 30 km:

• BalloonSats can do real science at 100,000 feet

• Discoveries can be made

• Atmospheric studies can be done

• Engineering challenges are extreme

• Enough unknowns to catch the mind of students

slide63

Hands-on: Heater Circuit

- Dry ice test results have been excellent

slide64

Hands-on: Heater Circuit

Kit includes:

3 9 Volt batteries (for flight only)

1 Perf Board

3 Ceramic Resistors (4 Ω @ 5W)

3 9 V connectors

1 White wire

1 Blue wire

1 Red wire

1 Black wire

1 Switch

1 Female connector with red and black wire

slide66

Hands-on: Heater Circuit

Layout Resistors on Perf Board

slide67

Hands-on: Heater Circuit

Layout Resistors on Perf Board

Front

Back

slide68

Hands-on: Heater Circuit

Fold over the leads from two of the blocks and solder them together

slide69

Hands-on: Heater Circuit

Snip the leads that you just soldered together

slide70

Hands-on: Heater Circuit

Fold over the opposite two leads and solder so that all of the blocks are connected in parallel then clip the ends of the leads

slide71

Hands-on: Heater Circuit

Solder resistors in series using leads of resistors

slide72

Hands-on: Heater Circuit

Twist all the Red wires from the 9V connector together and solder them to the single BLUE wire in your kit

slide73

Hands-on: Heater Circuit

Twist all the Black wires from the 9V connector together and solder them to the single black wire from the female connector

slide74

Hands-on: Heater Circuit

Check continuity for all “-” and “+” terminals to each other

slide75

Hands-on: Heater Circuit

Check continuity for all “+” terminals of the battery with the end of the single BLUE wire

Check continuity for all “-” terminals of the battery with the end of the single BLACK wire

slide76

Hands-on: Heater Circuit

Check continuity for all “-” terminals of the battery with the BLACK wire on the connector

slide77

Hands-on: Heater Circuit

Put electrical tape on solder joints

slide78

Hands-on: Heater Circuit

Solder the single BLUE wire from 9V connector to one end of the resistor string and the RED wire from the female connector to the other end of the resistor string

slide79

Hands-on: Heater Circuit

Connect the Switch (Black to Black, Red to Red)

slide81

Hands-on: Heater Circuit

Attach 3 flight batteries and turn switch on. Your heater will get extremely hot with in 1 to 2 minutes. If it takes longer, please let me know.

slide82

Hands-on: Heater Circuit

Turn switch off, disconnect the switch from the heater, leave batteries connected

slide83

Cameras

ASEN / ASTR 2500

Colorado Space Grant Consortium

slide85

Canon A570 IS Mods:

  • The following instructions will walk you through the steps needed to change the firmware on this camera to take picture every 20 seconds
slide86

Canon A570 IS Mods:

  • The CHDK code was originally written by Rick von Glahn from Edge of Space Sciences (EOSS)
  • These steps are performed with the camera modified to turn on and off with a external switch
  • The steps to modify the hardware of the camera are contained in a different presentation
  • 2GB can hold ~ 566 pictures
slide87

Canon A570 IS Mods:

  • This mod uses CHDK to add autonomy to a digital camera without the use of a timing circuit or further modifications to the camera
  • CHDK is firmware enhancement
  • It only works with Canon digital cameras
  • Please see the following website for much more information http://chdk.wikia.com/wiki/CHDK
slide88

Canon A570 IS Mods:

  • http://chdk.wikia.com/wiki/CHDK
slide89

Canon A570 IS Mods:

  • Take your camera out of the box
slide90

Canon A570 IS Mods:

  • Insert the batteries
slide91

Canon A570 IS Mods:

- Turn on camera by touching two wires together

slide92

Canon A570 IS Mods:

- Set the date and time

- Power off the camera by touching the two wires together again

slide93

Canon A570 IS Mods:

2.

  • Insert SD card and close battery cover
  • (not all SD cards support this mod)

1.

3.

4.

5.

slide94

Canon A570 IS Mods:

  • Set Camera to “AV” mode
slide95

Canon A570 IS Mods:

  • Turn on camera by touching two wires together
slide96

Canon A570 IS Mods:

  • Press the “MENU” button and format the card – Use the “Low Level Format” setting

1.

2.

slide97

Canon A570 IS Mods:

  • Press the “MENU” button and format the card – Use the “Low Level Format” setting

3.

4.

slide98

Canon A570 IS Mods:

  • Press the “MENU” button and format the card – Use the “Low Level Format” setting

5.

6.

slide99

Canon A570 IS Mods:

  • Power off camera and remove the SD Card

1.

2.

slide100

Canon A570 IS Mods:

  • Connect the SD card to your computer

1.

2.

slide101

Canon A570 IS Mods:

  • The files we are going to copy to the SD card contain a script (macro) that will take pictures about every 20 seconds after an initial boot up.
slide102

Canon A570 IS Mods:

  • Open the “cu_gateway_fall_2009.bas” file

1.

slide103

Canon A570 IS Mods:

  • Open the “cu_gateway_fall_2009.bas” file

2.

3.

slide104

Canon A570 IS Mods:

  • Open the “cu_gateway_fall_2009.bas” file

4.

5.

slide105

Canon A570 IS Mods:

  • Open the “cu_gateway_fall_2009.bas” file

6.

slide106

Canon A570 IS Mods:

  • Save the “cu_gateway_fall_2009.bas” file
slide107

Canon A570 IS Mods:

  • Copy the CHDK folder structure and files to the SD card
slide108

Canon A570 IS Mods:

  • Switch the play/record button on the camera to “play”
slide109

Canon A570 IS Mods:

  • Insert SD card and power the camera on.

1.

2.

3.

slide110

Canon A570 IS Mods:

  • Press the “MENU” button and press the left on the circle button until the “play” symbol is highlighted

1.

3.

2.

slide111

Canon A570 IS Mods:

  • Press up on the circle button and highlight “Firm Update”

1.

2.

slide112

Canon A570 IS Mods:

  • Select “OK” and press “SET”

1.

2.

slide113

Canon A570 IS Mods:

  • Camera should now be running the CHDK firmware.
  • May be default script or Gateway script.
slide114

Canon A570 IS Mods:

  • Press the shutter button to stop the script but leave the camera on
slide115

Canon A570 IS Mods:

  • Switch the play/record button on the camera to “record”
slide116

Canon A570 IS Mods:

  • You should see “Default Script” and “<ALT>” in the bottom of the screen
slide117

Canon A570 IS Mods:

  • With “<ALT>” showing, press the “MENU” button
slide118

Canon A570 IS Mods:

  • - “<ALT>” will be replaced by “<CNF>”
slide119

Canon A570 IS Mods:

  • - Use the control pad to move the cursor down to "Debug parameters" and click "SET" to select this option.
slide120

Canon A570 IS Mods:

  • Move the cursor down to "Make card bootable...“
  • Press "SET" to select this option then select back and press “SET” again
slide121

Canon A570 IS Mods:

  • Nothing should happen. This is OK
  • Power off camera.
slide122

Canon A570 IS Mods:

  • Remove the SD card and slide switch to “LOCKED”

Even though the card is in the “LOCKED” position it will be able to be written to via the CHDK firmware.

slide123

Canon A570 IS Mods:

  • Insert locked SD card and make sure the camera is in “RECORD” mode
  • Power on the camera
  • If the script that runs is the Gateway 2009 script than you can skip to end of these steps
slide124

Canon A570 IS Mods:

  • Insert locked SD card and make sure the camera is in “RECORD” mode
  • Power on the camera
  • “Default Script” and the “<ALT>” should be visible
  • Press the shutter button to stop script
slide125

Canon A570 IS Mods:

  • With “<ALT>” showing, click on the menu to get to the “<CNF>” screen.
slide126

Canon A570 IS Mods:

  • Use the control pad to move the cursor down to "Scripting parameters" and push "SET"
slide127

Canon A570 IS Mods:

  • On the “Script” menu select "Load script from file..."
slide128

Canon A570 IS Mods:

  • On the "Select script file" screen, move the cursor to highlight "cu_gateway_fall_2009.bas>" and press "SET"
slide129

Canon A570 IS Mods:

  • When you return to the “Script” menu ensure that "Script Autostart" is checked (a dot in its selection field).
  • Also make sure the “Current script” is correct
slide130

Canon A570 IS Mods:

  • Now click "MENU” to save these changes to the configuration file
slide131

Canon A570 IS Mods:

  • Turn off camera
  • The next time the camera is turned on, it will run the script
  • It will go through a series of camera setting changes which will take about 60 seconds
  • Then the camera will begin to take pictures every 20 seconds until the card is full
slide132

Canon A570 IS Mods:

  • Sometimes the script doesn't execute properly the first time it runs.
  • If this happens, let it run it's course for around a minute or so then turn the camera off then on again and it should work fine
  • It should continue to work just fine on every subsequent power up
slide133

Canon A570 IS Mods:

  • Turn on the camera
slide134

Canon A570 IS Mods:

  • You can turn the camera off anytime.
  • If you wish to stop the script during execution just press the shutter release button and that will interrupt the execution of the script
  • Next press the printer button to gain control of the camera without having to remove the card
  • This is handy if you want to review photos, or do something else without the script running.
slide135

Canon A570 IS Mods:

  • After the pushing the shutter, you must push the print button to have normal camera operation
slide136

Canon A570 IS Mods:

  • Any setting you might make to the camera will be restored to factory default settings next time the script runs as that is the first action the script takes
  • - Once you interrupt a script it must be re-run from the beginning you can not PAUSE a script and RESUME it
  • - Pictures on card should be in the JPEG format not *.RAW format
  • - To delete pictures, you must remove card and lock
slide137

Canon A570 IS Mods:

  • You can modify your code without reloading the firmware
  • For example lets change the “sleep” value to 5000
slide138

Canon A570 IS Mods:

  • Power off camera
  • Remove SD Card
  • Unlock SD Card
  • Open CHDK/Scripts/cu_gateway_fall_2009.bas
  • Scroll down to end of code and change sleep = 5000
  • Save
slide139

Canon A570 IS Mods:

  • - Remove SD card and lock
  • Insert SD card into the camera and power on
  • Pictures should be taken every 8 to 10 seconds now
  • I would suggest a 20 second (sleep = 16000) for 135 minute flight time
slide140

Canon A570 IS Mods:

  • You can also “rem” out pieces of the set up or other functions but test first
  • Camera is working, it shall also be working at the end of the semester
  • Take good care of this camera
  • Thank you.