DIY Flight-Computer

Am Samstag, 14. Februar 2015 12:25:22 UTC+1 schrieb Kilo-Bravo:
Am Donnerstag, 12. Februar 2015 00:25:52 UTC+1 schrieb Martin Gregorie:
On Wed, 11 Feb 2015 05:21:21 -0800, Kilo-Bravo wrote:

At a first look at things, I would prefer a 7" Touch-screen, which I
think its big enough to let my fingers work on it during flight.

I have a fairly full panel in my Libelle: 80mm ASI, altimeter and SDI C4
for starters followed up by 57mm B.40 vario, T&B and radio.

Currently me navigation system is LK8000 running on a Medion S3747, held
in front of the panel in a fleximount: as its just a 3.5" (88mm) screen,
it doesn't hide any instruments. I find its touch screen is useable in
flight, but then I don't have big fingers.

I was wondering about touch screens because some of the RaspberryPi shops
(Pimoroni and ModMyPi) are selling 3.5"/85mm touch screens for around GBP
35. These tend to use I2C bus connections though I did spot one with a
USB connector.


--
martin@ | Martin Gregorie
gregorie. | Essex, UK
org |

Hi Martin,

sorry for late reply.
Of course I know the panel-problems, not only with the Libelle.
As I am verry much restricted in panel-space in my Banjo, and do do not want to exchange all my 80mm instruments by expensive 57mm instruments, I do look for a smaller and less difficult version. let´s call it a OV-Light.
5" or even 4" touchscreen, without stick-remote, gyro, accellorator and other additional functions. Just a plane Glider-Navigation to replace my old IPAQ with SeeYou running at it.
At this moment, I try to get a Light-Specification together with the designer-group, hope this will work.
On the other hand, I am just a dumm Electronic-Neandertal (greenhorn), so I have to work out first how to get the PCB´s manufactured and whats the special secret by soldering the SMD´s onto the PCB´s.
In the next step, I like to build a Light-Version to get builders-experiance, in order to document those things at my website UL-Segelflug.de, to make the doeing easyer for other builders.
Stay tuned at UL-Segelflug.de and watch for progress.

Best regards from Germany

Klaus

Hi Martin,

I have to revise my Info to you from yesterday, as meantime new findings came up.
I did a survey asking all present builders about their experiances and the state of the build at present.
All together, inclusive the people from the developing-crew convinced me, that a Light-Version, as I prefered it, would not make any sence.
1. building a full-version will cost somthing like 40-50 EURO more then the light-version.
2. additional time for the build is minor
3. building the full version would include an E-Vario in display as well, so I could take my Borgelt E-Vario out of the panel
Taking out the Borgelt will not only reduce weigt of 550 Gramms, but also gives lot of additional space to go for a 7" display.
I took out all instruments from my panel, covered it with blank paper and glued shapes of remaining instruments and the 7" screen in original messurements to it.
The result: everything fits and the 7" screen looks encouraging.
Today I do a new Panel in fibre, so I will proceed the project as explained obove.
New panel-layout you can see at UL-Segelflug.de/Blog, where I also described the new findings.
I´m sure you could try a similar way, just try it.
Touch-screen has also been obandoned, now I ended up with a stick-remote as well.
Could be, that I design a small side-panel mounted at the canopy-frame, instead stick-remote.

Regards from Germany

Klaus