Thread Tools
Old Apr 18, 2012, 11:28 AM
kapteinkuk is offline
Find More Posts by kapteinkuk
Quad Whisperer
Discussion

Open source speaking height/speed/variometer


Hi, this is my open source airspeed / height / variometer for R/C gliders. The voice/vario sound is generated on board the plane and sent to the ground by a audio link. The speed and height are spoken with regular intervals, first the speed in km/h and then the height above ground in meters.

Talking sailplane airspeed / height / vario test (2 min 37 sec)






The reason for the huge micro-controller package is simple, I ordered the wrong one!

Source code and Eagle PCB layout is attached.

Todo:
-New smaller layout
-Controll by R/C channel.
-Increase maximum sensable height.
Sign up now
to remove ads between posts
Old Apr 18, 2012, 03:38 PM
Vince Herman is offline
Find More Posts by Vince Herman
Registered User
Vince Herman's Avatar
Very interesting!
What are you using to send back to the ground?
Old Apr 18, 2012, 06:53 PM
kapteinkuk is offline
Find More Posts by kapteinkuk
Quad Whisperer
The audio is transmitted to ground by the audio channel of the video link.

I was planning on using a stand alone audio transmitter on 433MHz to a walkie talkie, but could not find any suitable.
Old Apr 19, 2012, 09:18 AM
h.eberbach is offline
Find More Posts by h.eberbach
Registered User
Kapteinkuk,

have a look here:

http://www.hmradio.de/en/home.html

You might want to use the "70 TX-S" type ...

Herbert
Old Apr 26, 2012, 07:11 PM
kapteinkuk is offline
Find More Posts by kapteinkuk
Quad Whisperer
That one look good!
Do you know where to buy?
It tried googling it.
Old Apr 27, 2012, 11:55 AM
Andy W is offline
Find More Posts by Andy W
Registered User
Andy W's Avatar
Very cool. Nice thermal there!
..a
Old May 23, 2012, 10:11 AM
crazy4volvo is offline
Find More Posts by crazy4volvo
Registered User
crazy4volvo's Avatar
Very nice project despite of monster CPU . Anyway, I'm trying to understand a concept of using a pipe which looks like a Total Energy Sensor, but has two ports and is connected to two pressure sensors. KK, could you please add some more details?
Old May 29, 2012, 05:07 PM
kapteinkuk is offline
Find More Posts by kapteinkuk
Quad Whisperer
It is a pitot-static tube. It combines a pitot tube (for speed) and a static port (for altitude, and speed reference)
Old Sep 15, 2012, 02:30 AM
flypeter21 is offline
Find More Posts by flypeter21
Registered User

Is any ready to use package available yet??
Preferably with a UHF transmitter that can be picked up with the standard Australian UHF receivers??

Thanks,

Peter Stuy

Australia
Old Oct 16, 2012, 07:31 AM
buze is offline
Find More Posts by buze
Registered User
Very interesting project! thanks for sharing.

Huh, how do you make these named ports in eagle schematic? never knew they were there :-)
Old Oct 16, 2012, 08:56 AM
buze is offline
Find More Posts by buze
Registered User
@kapteinkuk where did you source these sensors? I found a source for the tube, but the sensors are out of stock at farnell...
Old Nov 17, 2012, 02:03 PM
infractor is offline
Find More Posts by infractor
Registered User
hi kapteinkuk, company that made ​​your the pcb?
Old Nov 20, 2012, 05:24 PM
HughesBrothers is offline
Find More Posts by HughesBrothers
Registered User
Will you be producing these to sell? I would be very interested
Old Nov 24, 2012, 08:52 PM
kapteinkuk is offline
Find More Posts by kapteinkuk
Quad Whisperer
Hi, I abandoned this project due to the cost/complexity and the fact that the sensors where disturbed by RF below 2.4GHz, making it difficult to use other down links.

Instead I can recommend my newest Vario project here. https://www.rcgroups.com/forums/show....php?t=1749208

This one is simple, inexpensive and performs well. I had to drop the voice readouts in favor to use a simpler down link, but I do not miss it.


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Discussion Speaking of Classic Speed Planes... Brian Nixon High Performance 7 May 26, 2012 10:34 AM
Discussion Best open source autopilot vs commercial solution syncra Multirotor Talk 0 Apr 12, 2012 02:35 PM
Discussion Any Open Source / CC CAD Files for gliders? DrFragnasty Composites Fabrication 8 Apr 09, 2012 06:36 AM
Discussion I'm designing an open source quad frame. Inclusions anyone? Physics_Dude Multirotor Talk 3 Mar 11, 2012 01:22 PM