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--- projects:canadawest:hab_payload [2013/05/18 03:04] – [Collaboration] canadawest
+++ projects: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
   * <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)
   * Electronic wiring
@@ Line 56: / Line 56: @@
 I figure I could even get so fancy as to use spare bandwidth to transmit images or telemetry.
+I also added to the /etc/inittab so that I could log in wirelessly:\\
+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.