colorado space grant consortium

Colorado Space Grant Consortium

Gateway To SpaceASEN / ASTR 2500

Class #06

T-58

Today:

- Announcements

- One Minute Reports

- HOBOs, Cameras, Foamcore, Insulation, Multimeters

- Next Tuesday is catch up and in class team time

Today:

- Website now has presentations

- Give man a fish…

- Innovate ideas don’t have solutions

- Breadcrumbs (HW)

Announcements:


FoamcoreASEN / ASTR 2500

6

- 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”

Hands-on: Construction and Integration

http://calspace.ucsd.edu/spacegrant/

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BalloonSat Construction:

- There is a BETTER way of building with foam core- Requires algebra and geometry

- See paper in back of your course book

-


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- 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


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- 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)



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- Step 2: Cut it out


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- Step 2: Cut it out


13

- 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



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- Cut holes for switch and camera lens

- Cut hole through center for balloon attachment tube



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- 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


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- 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


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- Step 4: Glue it together and strengthen corners


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Things to remember: You only have one

- Switches


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- 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



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- 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



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Resources available for checkout:

- Soldering stations- ½” and ¼” foam insulation- Foamcore- Velcro- Tape- Peace and love



MultimetersASEN / ASTR 2500

Today:


25

-

Voltmeter is very useful

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Voltmeter 101:

-

This is the set up typically used

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Voltmeter 101:

-

Use this setting to check resistor values

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Voltmeter 101:

-

Use this setting to check DC voltage

29

Voltmeter 101:

-

Use this setting to check continuity


HOBOsASEN / ASTR 2500

Today:

HOBO Data Logger

RHSensor

TempSensor

ExternalChannels

SerialPort

LEDIndicator

HOBO Data Logger

RHSensor

TempSensor

ExternalChannels

SerialPort

LEDIndicator

Battery(back side)

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- Data Loggers our like our “Black Boxes”

HOBO Data Logger

Burst (30 km)

TropopauseColdest

Launch

Landing

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

Hands-on: Temperature Experiment

Step 7: Start HOBO Box Car 3.7 software


Step 8: Launch HOBO computer


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


Step 10: Select Channel 4


Step 11: Select correct temperature cable


Step 14: Select Data sampling or interval


Step 15: Confirm Settings and select Start


Step 16: Unplug PC cable from HOBO


Take and Retrieve Data

Hands-on: Temperature & Solar Experiments

Step 17: Give your HOBO sensor some data


Step 18: Connect PC Cable to HOBO

Step 19: Select Readout


Step 20: Verify data download


Step 21: Disconnect PC cable from HOBO


Step 22: Name Data


Step 23: View Data


Step 24: Change data channel


Step 25: View Data from Channel 4


Delay Start Feature

Hands-on: Temperature & Solar Experiments

To save time tomorrow and launch day…

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


- Repeat Steps 1 through 13

- Step 26: Set sampling rate to 15 Sec

- This will give you over 8 hours of data


- Step 27: Select Delay Start

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

- Step 29: Select Start


Step 30: Unplug PC cable from HOBO


Step 31: Store HOBO and cables in box

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



HeatersASEN / ASTR 2500

Today:

61

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


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• 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

Environments at 30 km:


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Hands-on: Heater Circuit- Dry ice test results have been excellent


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Hands-on: Heater CircuitKit includes:

3 9 Volt batteries (for flight only)1 Perf Board3 Ceramic Resistors (4 Ω @ 5W)3 9 V connectors1 White wire1 Blue wire1 Red wire1 Black wire1 Switch1 Female connector with red and black wire


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Hands-on: Heater CircuitSet out kit


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Hands-on: Heater CircuitLayout Resistors on Perf Board


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Hands-on: Heater CircuitLayout Resistors on Perf Board

BackFront


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Hands-on: Heater CircuitFold over the leads from two of the blocks and solder them together


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Hands-on: Heater CircuitSnip the leads that you just soldered together


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Hands-on: Heater CircuitFold over the opposite two leads and solder so that all of the blocks are connected in parallel then clip the ends of the leads


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Hands-on: Heater CircuitSolder resistors in series using leads of resistors

4Ω

4Ω

4Ω


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Hands-on: Heater CircuitTwist all the Red wires from the 9V connector together and solder them to the single BLUE wire in your kit


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Hands-on: Heater CircuitTwist all the Black wires from the 9V connector together and solder them to the single black wire from the female connector


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Hands-on: Heater CircuitCheck continuity for all “-” and “+” terminals to each other


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Hands-on: Heater CircuitCheck 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


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Hands-on: Heater Circuit

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


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Hands-on: Heater CircuitPut electrical tape on solder joints


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Hands-on: Heater CircuitSolder 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

4Ω

4Ω

4Ω


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Hands-on: Heater CircuitConnect the Switch (Black to Black, Red to Red)


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Hands-on: Heater CircuitFinal Product


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Hands-on: Heater CircuitAttach 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.


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Hands-on: Heater CircuitTurn switch off, disconnect the switch from the heater, leave batteries connected



CamerasASEN / ASTR 2500

Today:


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

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

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

Canon A570 IS Mods:

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

Canon A570 IS Mods:

- Take your camera out of the box

Canon A570 IS Mods:

- Insert the batteries

Canon A570 IS Mods:

- Turn on camera by touching two wires together

Canon A570 IS Mods:

- Set the date and time

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

Canon A570 IS Mods:

- Insert SD card and close battery cover

(not all SD cards support this mod)

Canon A570 IS Mods:

1. 2.

3. 4. 5.

- Set Camera to “AV” mode

Canon A570 IS Mods:

- Turn on camera by touching two wires together

Canon A570 IS Mods:

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

Canon A570 IS Mods:

1. 2.

Canon A570 IS Mods:


3. 4.

Canon A570 IS Mods:


5. 6.

- Power off camera and remove the SD Card

Canon A570 IS Mods:

1. 2.

- Connect the SD card to your computer

Canon A570 IS Mods:

1. 2.

- 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.

Canon A570 IS Mods:

- Open the “cu_gateway_fall_2009.bas” file

Canon A570 IS Mods:

1.


Canon A570 IS Mods:

2. 3.


Canon A570 IS Mods:

4. 5.


Canon A570 IS Mods:

6.

- Save the “cu_gateway_fall_2009.bas” file

Canon A570 IS Mods:

- Copy the CHDK folder structure and files to the SD card

Canon A570 IS Mods:

- Switch the play/record button on the camera to “play”

Canon A570 IS Mods:

- Insert SD card and power the camera on.

Canon A570 IS Mods:

1. 2. 3.

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

Canon A570 IS Mods:

1.

2.

3.

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

Canon A570 IS Mods:

1. 2.

- Select “OK” and press “SET”

Canon A570 IS Mods:

1. 2.

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

Canon A570 IS Mods:

- Press the shutter button to stop the script but leave the camera on

Canon A570 IS Mods:

- Switch the play/record button on the camera to “record”

Canon A570 IS Mods:

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

Canon A570 IS Mods:

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

Canon A570 IS Mods:

- “<ALT>” will be replaced by “<CNF>”

Canon A570 IS Mods:

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

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

Canon A570 IS Mods:

- Nothing should happen. This is OK- Power off camera.

Canon A570 IS Mods:

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

Canon A570 IS Mods:

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

- Power on the camera

- If the script that runs is the Gateway 2009 script than you can skip to end of these steps

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

Canon A570 IS Mods:

- Insert locked SD card and make sure the camera is in “RECORD” mode

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

Canon A570 IS Mods:

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

Canon A570 IS Mods:

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

Canon A570 IS Mods:

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

Canon A570 IS Mods:

- When you return to the “Script” menu ensure that "Script Autostart" is checked (a dot in its selection field).

Canon A570 IS Mods:

- Also make sure the “Current script” is correct

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

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

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

Canon A570 IS Mods:

- Turn on the camera

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.

Canon A570 IS Mods:

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

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

Canon A570 IS Mods:

- You can modify your code without reloading the firmware

- For example lets change the “sleep” value to 5000

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

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

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.

Canon A570 IS Mods:

colorado space grant consortium

Documents

training workshop

integration student

box student hands

corners student hands

mindful student hands

issue student hands

foam core foam core

course book student