Projects/hackerspacesinspace2

From 757Labs

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NOTICE: The Project is on Hold until Further Notice; however, progress is being made on the design for a future launch

[edit] Description

After a successful first attempt in the Hackerspaces In Space challenge last year, the lab is gearing up for Hackerspaces in Space: Year 2.

[edit] Rules

  • Full rules (PDF)
  • Build teams can be of any size but only 10 people are allowed for the launch and retrieval team.
  • Payload must be under 4 pounds (~1.814kg).
  • Parts cost limit of $250.00. Must show receipts or have other proof of purchase. The lesser of MSRP or average value of closed ebay actions will be used to estimate cost on any items without a receipt.
  • Payload must return with pictures taken from the flight.
  • Only one official launch per team allowed. Notice of official launches must be given at least 24 hours in advance of launch.
  • All local laws and ordinances must be followed throughout the entire competition.
  • Balloon camera must take pictures of the curvature of the earth with black space backdrop (See cover page photo).

[edit] Important Dates

  • Register at www.hackerspacesinspace.com starting September 26, 2011.
  • Launches will be held between October 3, 2011 and November 28, 2011.
  • Results of the official launch must be sent in by December 2, 2011.
  • Winner will be announced on or before December 16, 2011.

[edit] System Design

The final design used the following:

  1. ATMEGA 328P MCU
  2. Inventek High Atitude GPS Module capable of reporting to 135,000 feet http://www.inventeksys.com/html/ism300f2-c5-v0004.html
  3. HX1 300 mW integrated radio transmitter chip http://www.radiometrix.co.uk/products/hx1.htm
  4. 5 MP Digital camcorder
    1. 16 gig Class 4 SDHC card


[edit] Schematic

Balloon Electronics

[edit] Info / Decision

Matt volunteered to take leadership of the project

  1. Matt will register 757 Labs with the Hackerspaces in Space contest.
  2. Ken (almost_there) will order the balloon, target weight (expected final weight)2lb so 800 gram or 1000 gram
  3. Ethan wants to make a cut-away device to release the balloon once it has reached adequate altitude to get the pictures we want.
    1. Nichrome wire burns through string.
    2. Servo-controlled release.
    3. A skilled marksman shoots it down.
  4. Ethan, Chris, and Phister will make a PCB based on last year's schematic.
    1. Design using free KiCad software.
      1. Capture schematic.
      2. Layout board.
      3. Etch.
      4. Solder.
  5. Ken will test the camcorder (How long can run on internal battery? How long it can record before memory fills up?).
  6. Jean will do landing zone predictions based on the forecasted weather for launch day.
  7. Adam will see if he can get someone to donate the hydrogen.
  8. Jean will donate a new Styrofoam payload container - (JCM): Found it; will get it to Ken on Monday.
  9. Hack new camera to start and stop recording and/or remote fire
  10. Call FAA and get auth (requires about 1 month). Expect to play phone tag. Get section 101 of the Federal Aviation Regulations (FARs)
  11. Call local Flight Service Station (FSS) and file a Notice to Airmen (NOTAM) giving the launch site, date and time, expected max altitude, expected rate of climb, expected direction of travel and landing spot.
  12. Call FSS the morning of the launch for current winds aloft. (so we know were it will be
  13. Call again after launch and notify them of the coordinates and or rate of ascent/descent till 60,000 feet and then from 60,000 to crash site

Still needs to be done

  • Select Launch/Recovery Team(s)
  • Get gas
  • Finish PCB
    • PCB needs Components
    • Some of the Components last year are broken or unstable
  • Assemble the payload
  • Launch

[edit] Testing

  • Camera
    • Recorded 38m and 2.99993 gigs one first HD test and failed to fill the 16gig card
    • Recorded 56m 58 s and 2.07 gigs one first SD test and failed to fill the 16gig card
    • Recharged the camera and it recorded for ___ h ___ m ___ s in HD and Recorded ___ gigs and Failed to filled the memory card
    • Tested with Power over USB
      • Epic Fail
      • Cam goes into data transfer mode and turns off lcd
      • Battery is a 3.7v 800 mAh
      • Battery pack is easily removed and replaced with bare wire (or org+aux battery)
      • Test with 3.7v and 0.35 Amps on bench (wines)
      • Tested @ 5v .3 a (full charge and working)

Issues

  • MAX FILE SIZE 3.99 Gigs
    • HD 1 Hr 7 min or so
    • SD
  • Power 3.7v battery lasts 30 min
    • Solutions
      • Use 4v off PCB

3.3 Camera Power usage 4v .3 a

uses 3.3 logic

OEM Battery 800mwh

[edit] 757 Labs in Space Meeting 11/12/2011 @ 3pm

People that CAN'T attend

  • telmnstr - Get it done quick -- Remark
  • Jean -- have another commitment. Ken will fill me in.

People attending

  • Chef
  • Vex
  • Almost_there
  • everyone else interested

(note we will meet up stairs I will clear off a table friday Agenda

  • When and where are we launching?
    • next weekend?
  • Progress on PCB
    • has been etched 11/13/11
  • Progress on cutaway
    • reday to install after pcb is finished
  • Fit camera into foam
  • sew camera in
  • Put foam together
  • Get bill together

[edit] Teams

[edit] Build

[edit] Launch

  • Nothing yet

[edit] Tracking / Recovery

  • Nothing yet

[edit] Ideas and Goals

[edit] Build

  • PCB
  • Video Camera
  • Gas use (hydrogen)
  • Lighter than last year
  • Better parachute
  • Create an encoding for automated processes to transmit operational updates (eg. notify a valve opens or closes)

[edit] Launch

  • 800g balloon
  • Hydrogen
  • NOT highest

[edit] Track/Recovery

  • Nothing yet

[edit] Bill of Materials

Equipment breakdown for balloon launch:


Billable Cost Actual Cost (w/ S&H) Weight Item Comments
$ Hydrogen
$ 60.00 $ 60.00 800g 800g balloon
$ 0.75 or $4.20 (60% of 1-yd of $7.00/yard fabric) Last years (pink) if 1-lb; new (yellow) if 2-lb 35g (1.23 ounces) - pink Parachute 28 inch Rip-Stop Nylon or 37" if 2-lb needed Last years Data
$ 32.95 Last Years ISM300F2-C4 GPS Module Price Obtained from inventksys
$ 4.00 Last Years ATMEGA 328P MCU MSRP
$ 63.00 Last Years HX1 300 mW integrated radio transmitter chip Price came from lemosint.com
$ 29.90 Donated 91.5g Camera Sylvania HD1Z Buy.com
$ 1.00 In Stock PCB Ebay Avg price 10x @ $10.00
$ 0.50 In Stock Wire Misc
$ 0.50 $ 5.99 Solder
$ 0.50 $ 2.59 Kite String (ebay)
$ 5.00 $ 0.00 4 gig SD card
$ 0.50 $ 1.00 1/2 foot Nichrome wire donated?
$ 9.59 $ 9.59 8 AA Lithium Ion Batterys
$ 9.58 $ 9.58 2x 9v Lithium Ion Battery
$ 1.00 Last Years 34g Battery Holders 1 for (8) AA
$218.77 TOTAL Total's line

[edit] Experiments

Experiments are strongly encouraged. It is a rare opportunity for the average citizen to be able to build something and send it to the edge of Space, we should make the most of it. Please keep all experiments as small, light weight and low power as possible.

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