1 Colorado Space Grant Consortium Gateway To Space ASEN / ASTR 2500 Class #08 Gateway To Space ASEN / ASTR 2500 Class #08

2 -HW 04 DUE September 18, 2008 (one per team and bring all hardware to class) - New version on line along with new version of supplemental slides needed for homework - Presentations next week are at 5:00 PM - Proposals and presentations are due at 5:00 PM - Bring something to drink - Each team will have 10 minutes to present with questions - We will be done at 7:00 PM : Announcements:

Now Rocket History Now Systems Engineering Now Attitude Determination and Control Now Spider Now The Future of Space : Syllabus Changes:

Colorado Space Grant Consortium Timing Circuit Class #08 Timing Circuit Class #08

6 Step 12: Install 555 Timer chip. Be careful of orientation Hands-on: Timing Circuit, Power & Camera

7 Step 15b: Insert the red wire from the battery into the +12V terminal on the timing circuit (should be “+” of battery and not as shown below) Hands-on: Timing Circuit, Power & Camera You should here a click and see red LED light up. If not disconnect power immediately

8 Hands-on: Heater Circuit Step 31: Attach 3 flight batteries and turn switch on. Your heater will get extremely hot with in 1 to 2 minutes. If longer, please let me know.

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14 Step 13: Attach two wires to each side of the single A23 battery case (one red and one black) Make sure the red is attached to the + side. Install one A23 battery (12 V) into this battery holder Step 14: Use voltmeter to verify you have 12 V (you do not need the switch for this test you will need to complete this test as shown before flight) Step 13: Attach two wires to each side of the single A23 battery case (one red and one black) Make sure the red is attached to the + side. Install one A23 battery (12 V) into this battery holder Step 14: Use voltmeter to verify you have 12 V (you do not need the switch for this test you will need to complete this test as shown before flight) Hands-on: Timing Circuit, Power & Camera

15 Step 15: Insert the black wire from the battery pack into GND (Should be “-” of battery). Step 15: Insert the black wire from the battery pack into GND (Should be “-” of battery). Hands-on: Timing Circuit, Power & Camera

16 Step 15b: Insert the red wire from the battery into the +12V terminal on the timing circuit (should be “+” of battery and not as shown below) Hands-on: Timing Circuit, Power & Camera You should here a click and see red LED light up. If not disconnect power immediately

17 If you are using a switch, do step 16 Step 16: Flip switch ON (should here a click and see red LED light up) NOTE: If not, flip switch OFF and have timing circuit inspected Hands-on: Timing Circuit, Power & Camera

18 Hands-on: Timing Circuit, Power & Camera Step 17: Adjust the pause to get an interval of between 15 and 30 seconds. Make sure that the pulse is long enough that the camera will actually take a picture (somewhere around 1 second).

19 Hands-on: Timing Circuit, Power & Camera This step does not need to be done as part of this assignment Step 18: Tape the sides of the battery case and tape the batteries into place This step does not need to be done as part of this assignment Step 18: Tape the sides of the battery case and tape the batteries into place

20 Step 33: Cover the back of the timing circuit with black electrical tape to prevent electrical shorts Hands-on: Timing Circuit, Power & Camera

21 Colorado Space Grant Consortium Digital Camera Class #08 Digital Camera Class #08

22 Hands-on: Timing Circuit, Power & Camera Step 17: Insert the test batteries into the camera. These are your flight batteries

23 Step 18: Insert the 1 GB SD card into the camera and close the battery door. Hands-on: Timing Circuit, Power & Camera

24 Hands-on: Timing Circuit, Power & Camera Step 19: Test to make sure the camera works properly. Connect the camera switch to the connector of the front of the camera and flip the switch to ON. If camera does not turn on, raise your hand. Next, touch the two black wires together. The camera should take a picture. If this does not happen, raise your hand. Step 19: Test to make sure the camera works properly. Connect the camera switch to the connector of the front of the camera and flip the switch to ON. If camera does not turn on, raise your hand. Next, touch the two black wires together. The camera should take a picture. If this does not happen, raise your hand.

25 Hands-on: Timing Circuit, Power & Camera Resolution and Flash Settings Step 20: Once the camera is powered on, press the menu button and you will see this screen.

26 Hands-on: Timing Circuit, Power & Camera Step 21: Press left and you will be taken to the Capture Menu.

27 Hands-on: Timing Circuit, Power & Camera Step 22: Press down until you get to the Image Quality setting and press OK. Here you will change the setting from Normal (6MP) to 6MP Best and press OK.

28 Hands-on: Timing Circuit, Power & Camera Step 23: Make sure the switch on the front of the camera is set to landscape.

29 Step 27: Connect the first shutter release wire to the NO connection. NOTE: it doesn’t matter which wire this is as long as it is black Hands-on: Timing Circuit, Power & Camera

30 Step 28: Insert the other shutter release wire into the COM terminal. Hands-on: Timing Circuit, Power & Camera

31 Step 28: Connect the red wire from the battery pack to the red wire on the switch and you are finished! Final setup should resemble the image to the left. Hands-on: Timing Circuit, Power & Camera

Colorado Space Grant Consortium HOBO Computer Class #08 HOBO Computer Class #08

33 - Set-up and test the HOBO(15 mins) HOBO Demo:

34 Step 1: Take out HOBO bag and set parts out Hands-on: Temperature & Solar Experiments

35 Step 2: Install S/W if you have a laptop Hands-on: Temperature & Solar Experiments

36 Step 3: Install serial cable to laptop Hands-on: Temperature & Solar Experiments

37 Step 4: Connect Temperature cable (TMC1-HA) to channel 4 on HOBO Computer Hands-on: Temperature & Solar Experiments

38 Step 5: Connect Voltage cable (Cable-2.5 Stereo) to channel 3 on HOBO Computer Hands-on: Temperature & Solar Experiments

39 Step 6: Solar Panel to Voltage Cable Make sure black wire from solar cell goes to the black wire on the voltage cable. Hands-on: Temperature & Solar Experiments

40 Step 7: Connect PC cable to HOBO Computer Hands-on: Temperature & Solar Experiments

41 Step 7: Start HOBO Box Car 3.7 software Hands-on: Temperature & Solar Experiments

42 Step 7: Start HOBO Box Car 3.7 software Hands-on: Temperature & Solar Experiments

43 Step 8: Launch HOBO computer Hands-on: Temperature & Solar Experiments

44 Step 9: Check Battery & select “Enable/Disable Channels” Hands-on: Temperature & Solar Experiments

45 Step 10: Select Channel 4 Hands-on: Temperature & Solar Experiments

46 Step 11: Select correct temperature cable Hands-on: Temperature & Solar Experiments

47 Step 12: Select Channel 3 Hands-on: Temperature & Solar Experiments

48 Step 13: Select correct voltage cable Hands-on: Temperature & Solar Experiments

49 Step 14: Select Data sampling or interval Hands-on: Temperature & Solar Experiments

50 Step 15: Confirm Settings and select Start Hands-on: Temperature & Solar Experiments

51 Step 16: Unplug PC cable from HOBO Hands-on: Temperature & Solar Experiments

52 Take and Retrieve Data Hands-on: Temperature & Solar Experiments

53 Step 17: Give your HOBO sensor some data Hands-on: Temperature & Solar Experiments

54 Step 18: Connect PC Cable to HOBO Step 19: Select Readout Hands-on: Temperature & Solar Experiments

55 Step 20: Verify data download Hands-on: Temperature & Solar Experiments

56 Step 21: Disconnect PC cable from HOBO Hands-on: Temperature & Solar Experiments

57 Step 22: Name Data Hands-on: Temperature & Solar Experiments

58 Step 23: View Data Hands-on: Temperature & Solar Experiments

59 Step 24: Change data channel Hands-on: Temperature & Solar Experiments

60 Step 25: View Data from Channel 4 Hands-on: Temperature & Solar Experiments

61 Delay Start Feature Hands-on: Temperature & Solar Experiments

62 To save time tomorrow and launch day… - IMPORTANT: Make sure laptop time and date is correct for Colorado Mountain Daylight Time Hands-on: Temperature & Solar Experiments

63 - Repeat Steps 1 through 13 - Step 26: Set sampling rate to 15 Sec - This will give you over 8 hours of data Hands-on: Temperature & Solar Experiments

64 - Step 27: Select Delay Start - Step 28: Set the date and time to at 7:00 AM - Step 29: Select Start Hands-on: Temperature & Solar Experiments

65 Step 30: Unplug PC cable from HOBO Hands-on: Temperature & Solar Experiments

66 Step 31: Store HOBO and cables in box This concludes the set and initialization for the Temperature and Solar Experiments Hands-on: Temperature & Solar Experiments

67 Colorado Space Grant Consortium Foam Core Class #08 Foam Core Class #08

68 - 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

69 BalloonSat Construction: - There is a BETTER way of building with foam core - Requires algebra and geometry - See paper on the class website

70 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

71 BalloonSat Construction: - Step 1: Layout box design on foam core sheet

72 BalloonSat Construction: - Step 2: Cut it out

73 - 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 Hands-on: Construction and Integration Video here

74 Hands-on: Construction and Integration

75 - Cut holes for solar cell, switches, and temp probe - Cut hole through center for balloon attachment tube - Tube hole should not be on open side Hands-on: Construction and Integration

76 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

77 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

78 BalloonSat Construction: - Step 4: Glue it together and strengthen corners

79 BalloonSat Construction: - Camera aperture and sensors

80 BalloonSat Construction: Things to remember: - Switches

81 - 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 to heater, camera, and 12 V Hands-on: Construction and Integration

82 BalloonSat Construction: Things to remember: - Switches

83 - 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 to heater and 12 V Hands-on: Construction and Integration

84 BalloonSat Construction: Things to remember: - Flight tube integration - Launch day access - Testing

85 - 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 Hands-on: Construction and Integration

86 - Install Solar Cell, must disconnect from HOBO Hands-on: Construction and Integration

87 Hands-on: Construction and Integration

88 - Integrate camera system and verify camera settings - Integrate Flight String attachment tube and test clearance with sample string - Integrate HOBO system - Install temp probe (channel 4), metal tip must extend beyond wall of structure - American Flag Hands-on: Construction and Integration

89 - Install voltage cable (channel 3) - Install Heater - Test switches (will use one picture) - Tape in off position - Team label and reward label on outside of box Hands-on: Construction and Integration