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==Blimp Size Calculations==
<pre>
air is about 1.2 kg/m^3
helium is about 1/6th of that
6.2 ounces = 175.767043 grams
then you'd need about 175 liters
180 liters = 6.35664001 cubic feet
((6.3566 * 3) / (4 * pi))^(1 / 3) = 1.14915539
a balloon with a diameter of 2.3 ft
</pre>
==Blimps for Purchase We could Use==
http://cgi.ebay.com.sg/52-Mylar-Silver-Blimp-Balloon-Mach-RC-Airship-Blimp_W0QQcmdZViewItemQQitemZ130276783354
I also found out they make latex 3 foot balloons we could use for only 7 dollars that I can pick up locally!
==How to create a Propeller==
http://eds.dyndns.org/~ircjunk/tutorials/mech/prop/prop.html
==Servo Interface Design==
<pre>
macpod suggested:  probably cheapest would be to use a arduino based unit to talk to the g1, and have it use a multiplexer or i2c servo controller.  Look how diydrones does it.
</pre>


==Serial Connection Information==
==Serial Connection Information==
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Jake
Jake
</pre>
</pre>


==Serial Hardware to Interface with G1==
==Serial Hardware to Interface with G1==


https://noisebridge.net/wiki/Noisedroid/FAQ#USB_to_Serial_interface_with_the_G1
'''Untested pinout'''
 
Taken from PodGizmo. See website for their pinout.
 
# USB VCC +5v
# USB Data -
# USB Data +
# N / C
# USB GND
# Left Audio +
# Labeled "AG"
# Audio - (GND) Labeled "CK"
# Switch (Talk) Labeled "OT"
# Right Audio +
# Mic +
# Chassis Ground (GND)
 
 
'''Pinout'''
<pre>
it's muxxed on the headset terminals, i think there's some documentation in the h2w source file in arch-msm
</pre>
 
 
* <strike>Picture shows a mini-usb plug going into the G1 indicates only pins 1-5 can be involved. (GND=GND, RX/TX = USB Data +/-)?</strike>. I think it is actually an htc plug.. especially considering the google discussion on UART stuff (and that quote above!) Current <b>guess</b> is GND=(AG or CK), TX=Left channel, RX=Right channel.


==Helpful Links==
==Helpful Links==
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* http://www.tracyandmatt.co.uk/blogs/index.php/2006/09/10/htc_hermes_usb_connector_pin_config
* http://www.tracyandmatt.co.uk/blogs/index.php/2006/09/10/htc_hermes_usb_connector_pin_config
* http://groups.google.com/group/android-platform/browse_thread/thread/f03730e25cc3fe55
* http://groups.google.com/group/android-platform/browse_thread/thread/f03730e25cc3fe55
<pre>
    For the USB pinout, check http://pinouts.ru/Slots/USB_pinout.shtml.
Now, converting to serial is (or should be due to the USB specs) more
than just running wires from one connector to the other. There are
chips used to do the conversion and they are pretty cheap (like $1/
each or less). You could be lazy and then get a usb-to-serial cable
like this one, http://www.geeks.com/details.asp?invtid=800A-RS232&cpc=SCH,
and put the mini-usb connector on it.
</pre>


=== Open hardware/source DIY drones ===
=== Open hardware/source DIY drones ===
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