Difference between revisions of "Project:HackSat One"

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[[User:Flux|Flux]] has pledged for a [http://www.kickstarter.com/projects/251588730/kicksat-your-personal-spacecraft-in-space/ Kicksat] satellite dev kit. It's due in May 2012.
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{{Project||created=10/10/2011|status=Mission Failed|members=[[User:Flux|Flux]], [[User:Datagramm|Samuel]]}}
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[[File:Hacksat-devboard-hand.jpeg|thumb|right|Dev board for HackSat One]]
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[[File:Radio-testing-at-london-hackspace.jpeg|thumb|right|Radio testing with Samuel]]
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HackSat One is a tiny [https://flux.org.uk/projects/hacksat/hardware.html satellite sprite], launching as part of the [http://www.kickstarter.com/projects/zacinaction/kicksat-your-personal-spacecraft-in-space KickSat swarm]. The sprite is powered by its own solar panel and is capable of broadcasting signals back to Earth. It launched on 18th April 2014 as part of a NASA mission to resupply the International Space Station. Due to issues with deployment (see mission update, below) the mission failed. There is a related project to build [[Project:Hackney Space Centre|Hackney Space Centre]]. For the latest information see the [[Mailing List|mailing list]].
  
== First Steps ==
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__TOC__
Get some MSP430 experience. Several people in the space have mentioned having boards.
 
  
We have at least 3 MSP430 devkits in the space, The toolchain is a bit icky tho, but I think we have enough incentive to fix that now.
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=== Mission Update: 14 May 2014 ===
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I'm sad to report that HackSat will not be stretching its solar panels
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after all. HackSat likely re-entered overnight whilst still inside
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KickSat.
  
== The Hardware ==
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HackSat launched on 18th April inside the KickSat satellite. KickSat
We don't get to design the hardware on this mission, just program it.
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started out in an orbit of 299 by 331 Kilometers at an inclination of
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51.65 degrees. This is a low orbit and subject to a significant amount
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of drag.
  
* controller: TI CC430, MSP430 core with a radio: http://www.ti.com/product/cc430f6137
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Sixteen days after launch, KickSat was due to deploy HackSat and its
* sensors: temperature + one other TBC (KickSat are taking suggestions)
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other satellite sprites. The delay was required by Nasa to avoid
* radio: we can transmit what and when we like (subject to solar power) but data rate is only a few bits per second
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interfering with ISS operations. This meant HackSat would have began
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orbiting on 4th May.
  
== Experiment ==
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On 30th April the watchdog microcontroller that runs the KickSat timer
[[HackSat1 Payload]]
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reset, probably due to a cosmic ray. This pushed the deployment of
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HackSat out to 16th May. Attempts to manually deploy HackSat via the
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uplink failed: the KickSat batteries never reached a high enough
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voltage to enable the uplink receiver.
  
== Ground Station ==
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Since launch signals from KickSat have been regularly received by
We need one of these.
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ground stations around the world. Recent orbital predictions suggested
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that re-entry was likely 13-14th May. No stations have reported
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hearing KickSat overnight, so it seems very likely it has already
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re-entered.
  
== Resources ==
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- [[User:Flux|Flux]] ([[User talk:Flux|talk]]) 09:40, 14 May 2014 (UTC)
* [http://www.ti.com/lsds/ti/microcontroller/16-bit_msp430/overview.page?DCMP=MCU_other&HQS=Other+IL+msp430 MSP430] on TI site.
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* [https://estore.ti.com/MSP-EXP430G2-MSP430-LaunchPad-Value-Line-Development-kit-P2031.aspx MSP430 dev kit] ([http://uk.farnell.com/texas-instruments/msp-exp430g2/kit-dev-msp430-launchpad/dp/1853793 Farnell])
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=== Schedule ===
* [http://focus.ti.com/docs/training/catalog/events/event.jhtml?sku=OLT110005 MSP430 getting started workshop]
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After several launch delays, KickSat is now in low Earth orbit.
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HackSat and the other sprites will be deploying ~ 20:00 UTC on 4th May.
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Our satellite is contained with the bigger KickSat. 128 sprites are loaded into it. It has the names of contributors engraved on it, including "London Hackspace". You can see a [http://zacinaction.github.io/kicksat/engraving_photos/KickSat_minusY_Zoom2.jpg photo of the actual KickSat], complete with our engraving (we're on the bottom row, 4th from the right).
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=== Software Payload ===
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HackSat broadcasts a simple set of data on temperature, magnetic field and angular velocity. It will also broadcast the HackSpace URL: http://hack.rs
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If you're interested in trying to receive the signal from HackSat (and
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the other KickSat sprites) yourself see [https://github.com/zacinaction/kicksat/wiki/Setting-Up-A-Ground-Station setting up a ground station].
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=== Hardware ===
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Below, you can see a photograph of the dev board and dev kit. The sprite board itself is outlined in yellow, with the solar panel taking up most of the left-hand side. The boards beneath beneath the sprite are the TI LaunchPad and connecting board. Key components on the spite are:
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* '''TI CC430F6137 microcontroller''' (red): 16-Bit [http://en.wikipedia.org/wiki/TI_MSP430 MSP430], 32KB Flash, 4KB RAM, CC1101 Radio [[http://www.ti.com/product/cc430f6137 datasheet]]
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* '''InvenSense ITG-3200 Gyroscope''' (orange) [[https://www.sparkfun.com/datasheets/Sensors/Gyro/PS-ITG-3200-00-01.4.pdf datasheet]]
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* '''Honeywell HMC5883L Magnetometer''' (blue) [[http://www51.honeywell.com/aero/common/documents/myaerospacecatalog-documents/Defense_Brochures-documents/HMC5883L_3-Axis_Digital_Compass_IC.pdf datasheet]]
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* '''TXC 7Z-26.000MDG-T Oscillator''' (purple)  [[http://www.txccrystal.com/images/pdf/7z.pdf datasheet]]
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* '''Nitinol antennas''' (extend off top right of photograph) [[http://en.wikipedia.org/wiki/Nitinol nitinol info]]
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For more detail on the sprite hardware, including EagleCAD layouts, see the [https://github.com/zacinaction/kicksat/tree/master/Sprite/EagleCAD/Sprite KickSat Git repo].
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''NB. The dev board (pictured) has a different oscillator to that mentioned above.''
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[[File:Annotated-kicksat-dev-board.jpg]]
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=== Decal ===
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[[File:Hacksatone-mission-decal.png]]
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''Decal created by Nick Cramp.''
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[[Category:Projects]]
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[[Category:Satellites]]

Latest revision as of 09:41, 14 May 2014