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Student Hands On Training I (2009)

Student Hands On Training I (2009). Additional AVR Modifications For BalloonSat Flight. Additional Modifications:. - There are two additional modifications we need to do your team’s AVR board 1. Heater Circuit Integration 2. Camera Circuit Integration

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Student Hands On Training I (2009)

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  1. Student Hands On Training I (2009) Additional AVR Modifications For BalloonSat Flight

  2. Additional Modifications: - There are two additional modifications we need to do your team’s AVR board 1. Heater Circuit Integration 2. Camera Circuit Integration Both of these modifications will allow the AVR board to activate the heater and camera

  3. Student Hands On Training I (2009) Heater Circuit

  4. Hands-on: Heater Circuit - Your team will have 45 minutes to build an active heater circuit and integrate it to your AVR board - Instructions are in your handbook

  5. Student Hands On Training I (2009) Environments @ 30 km

  6. Environments at 30 km: • How high do commercial jet fly? • How high is the ozone layer? • What are the layers of the atmosphere? ~10 km ~20 to 50 km

  7. Environments at 30 km: • Troposphere • Stratosphere • Mesosphere • Thermosphere

  8. Environments at 30 km: Capt. Joe W. Kittinger jumps from a balloon at 102,800 feet Forgot to mention, he exceeded the speed of sound with his body

  9. Environments at 30 km: Temperature varies in all directions as you climb through the different layers of the atmosphere Why? Solar Radiation (UV, IR) - Ozone Absorbs - Surface Heats - Convection

  10. Environments at 30 km: - Temperature can dip to -80°C - Biggest killer of past missions - Easy, repeatable science Burst (30 km) Landing Launch Coldest Tropopause

  11. 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

  12. 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

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

  14. 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 IRL3302PbF MOSFET

  15. Hands-on: Heater Circuit Set out kit (Switch not used)

  16. Hands-on: Heater Circuit Layout Resistors on Perf Board

  17. 4Ω 4Ω 4Ω Hands-on: Heater Circuit Solder resistors in series using leads of resistors

  18. Hands-on: Heater Circuit Twist all the Red wires from the 9V connector together and solder them to the single red wire in your kit

  19. Hands-on: Heater Circuit Twist all the Black wires from the 9V connector together and solder them to the single black wire

  20. Hands-on: Heater Circuit Check continuity for all “-” and “+” terminals to each other

  21. Hands-on: Heater Circuit Check continuity for all “+” terminals of the battery with the end of the single RED wire Check continuity for all “-” terminals of the battery with the end of the single BLACK wire

  22. Hands-on: Heater Circuit Put electrical tape on solder joints

  23. 4Ω 4Ω 4Ω Hands-on: Heater Circuit Solder the single RED wire from 9V connector to one end of the resistor string and the WHITE wire to the other end of the resistor string

  24. Hands-on: Heater Circuit Locate the IRL3302PbF MOSFET

  25. Hands-on: Heater Circuit Solder the IRL3302PbF MOSFET to the AVR board as shown. Top pin should be at Column 15, Row 6. Do not trim the leads

  26. Hands-on: Heater Circuit Solder the IRL3302PbF MOSFET to the AVR board as shown. Top pin should be at Column 15, Row 6. Do not trim the leads.

  27. Hands-on: Heater Circuit Solder the IRL3302PbF MOSFET to the AVR board as shown. Top pin should be at Column 15, Row 6. Do not trim the leads.

  28. Hands-on: Heater Circuit Solder the other end of the WHITE wire to middle pin of the power MOSFET Should be at Column 17, Row 7

  29. Hands-on: Heater Circuit Create at solder bridge with middle pin of the MOSFET and end of the WHITE wire at Column 17, Row 7

  30. Hands-on: Heater Circuit Solder the BLUE wire to the Column 15, Row 4

  31. Hands-on: Heater Circuit Create at solder bridge with top pin of the MOSFET and end of the BLUE wire at Column 15, Row 4

  32. Hands-on: Heater Circuit Solder the other end of the BLUE wire to the Row D, Pin 4. Trim wire to minimum length

  33. Hands-on: Heater Circuit Solder the other end of the BLUE wire to the Row D, Pin 4. Watch out for solder bridges with other connections on the D block

  34. Hands-on: Heater Circuit Solder the single BLACK wire from the batteries to the bottom pin of the MOSFET at GND on Column 16

  35. Hands-on: Heater Circuit Create a solder bridge with the bottom pin of the MOSFET. DO NOT BRIDGE TO THE 3.3 HOLE.

  36. Hands-on: Heater Circuit Attach 3 flight batteries and set assembly aside.

  37. Student Hands On Training I (2009) Camera Integration

  38. Hands-on: Camera Integration Your camera has been modified so that it can be activated by shorting two wires together We will change the camera’s firmware later to allow it to autonomously take pictures once activated

  39. Hands-on: Camera Integration Your camera has been modified so that it can be activated by shorting two wires together We will change the camera’s firmware later to allow it to autonomously take pictures once activated

  40. Hands-on: Camera Integration Your camera has a two wires coming out of the camera The connector will allow you to easily integrate the camera unlike the heater which will be a pain

  41. Hands-on: Camera Integration Those two wires are connected to a connector which is connected to a MOSFET (similar to the heater MOSFET) Connected to the MOSFET are two wires, BLUE and BLACK

  42. Hands-on: Camera Integration Solder the BLUE wire to PORT D, Pin 5

  43. Hands-on: Camera Integration Solder the BLACK wire to GRD

  44. Hands-on: Camera Integration • Take your camera out of the box

  45. Hands-on: Camera Integration • Insert the batteries

  46. Hands-on: Camera Integration - Disconnect the connector between the camera and the MOSFET and turn on camera by shorting the two pins together

  47. Hands-on: Camera Integration - Set the date and time - Power off the camera by shorting the two wires together again

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