UKHAS Wiki

UK High Altitude Society

User Tools

Site Tools


projects:canadawest:hab_payload

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revisionPrevious revision
Next revision
Previous revision
projects:canadawest:hab_payload [2013/05/18 03:25] – [Update] canadawestprojects:canadawest:hab_payload [2013/09/22 08:14] (current) – [More components] canadawest
Line 13: Line 13:
   * [[http://www.hoskin.ca/catalog/index.php?main_page=product_info&cPath=1_61_152&products_id=588|Parachute]] (75g) w/ Radar reflector    * [[http://www.hoskin.ca/catalog/index.php?main_page=product_info&cPath=1_61_152&products_id=588|Parachute]] (75g) w/ Radar reflector 
   * <del>GMRS radios (license Free!)</del> (110g with battery 80g w/o battery)   * <del>GMRS radios (license Free!)</del> (110g with battery 80g w/o battery)
-  * GumStix w/ <del>GPS (10g)</del>+  * <del>GumStix w/ GPS (10g)</del>
   * <del>Batteries</del> (Energizer Lithiums 4x = 50g)   * <del>Batteries</del> (Energizer Lithiums 4x = 50g)
   * Electronic wiring   * Electronic wiring
Line 58: Line 58:
  
 I also added to the /etc/inittab so that I could log in wirelessly:\\ I also added to the /etc/inittab so that I could log in wirelessly:\\
-T0:2345:respawn:/sbin/getty -L ttyS0 38400 vt100+T0:2345:respawn:/sbin/getty -L ttyUSB0 115200 vt100 
 + 
 +===== More components ===== 
 +It's now September, 2013\\ 
 +I have managed to get more components working in tandem. 
 + 
 +I now have the Gumstix booting and transmitting GPS data.\\ 
 +I'm working on writing a new send program, to minimize data sent.  There are also a lot of xmit errors when you just pipe everything. 
 + 
 +Here are some pics of the Gumstix running off of battery power.\\ 
 +{{:projects:canadawest:gumstixconfig.jpg?nolink&400|Gumstix Verdex Pro running off batteries}} 
 + 
 +I have a Battery pack made out of non-rechargeable batteries.\\ 
 +{{:projects:canadawest:batterypack.jpg?nolink&400|Battery Pack}} 
 + 
 +You can see a low-voltage meter on the rechargeable battery pack running the computer.\\ 
 +It's been going a few hours, and it's still going strong.\\ 
 +I have a better battery monitor coming, but this is encouraging as is. 
 + 
 +I used an ESC from a model plane to get the 5V to power the Gumstix.\\ 
 +I had to hunt for the plugin adapter.  I found one in a laptop multi-adapter kit.  I didn't have to butcher the kit to get it working.  I just took a power outlet plug from a Vonage adapter I had lying around to get it hooked up.\\ 
 +The cabling is too long right now, and I will rig something lighter up for flight, but for now this will do. 
 + 
 +Currently the Gumstix + Transmitter + ESC + antennas + 8 AA battery pack is around 350g.  Although the batteries are 125g of that, I think I should just consider this the base for my payload weight. 
 + 
 +I might cut down the cables a little to save a few grams.  The possibility of introducing error with crimping on new SMA ends is pretty hight though, so I may not. 
 + 
 +Regardless, I will construct a little case for this so that it can be flown on my Bixler for in-air testing.
projects/canadawest/hab_payload.1368847505.txt.gz · Last modified: 2013/05/18 03:25 by canadawest

Donate Powered by PHP Valid HTML5 Valid CSS Driven by DokuWiki