Re: [Paparazzi-devel] Tiny 2 and IR, gyro settings

[Stephen L Hulme]

Dear Pascal 

The photo: -  http://paparazzi.enac.fr/wiki_images/Tiny_v2_1_Funjet.jpg you refer to below raises more questions than it answers below.

The sensors on the back plate look unrecognizable to those detailed and explained in the wiki other than the dual axis sensor mounted on top. 

I would love to have an expananation of the details of the two minature PCB's mounted on the vertical plane of the back plate.

And even more fascinating: - what is the function of the two drilled holes in the polystyrene module glued into the back cowling?

Those of us with watchful wives overlooking our expenditure have to know these things before we have to double up on the expenditure 

with failed attempts of mediocrity.

Regards

Stephen L Hulme     

Pascal Wrote:

Hi Uttam,

Uttam Chandrashekhar wrote:

Hi Pascal,

Thanks you! I didn't know the wiki was updated, I should have looked before asking. Sorry! It's mostly all clear now, only one question. What does horizontal sensor tilted/aligned mean?

"Aligned" means that the axis (ir1, ir2) of the horizontal sensor correspond to the axis of the aircraft (lateral, longitudinal). It is the way it is mounted on our twinjet: http://paparazzi.enac.fr/wiki_images/Ricou.jpg
"Tilted" means that the axis of the sensor are 45° from the axis of the aircraft. For example on our Funjet (and most of the Paparazzi aircraft): http://paparazzi.enac.fr/wiki_images/Tiny_v2_1_Funjet.jpg.

What is the optimal position to place the horizontal and vertical sensors?

As close as possible to the board to reduce the noise from the wires. But usually strong geometrical and mechanical constraints come from the airframe.
If you design your own airframe, you have to think about it as soon as possible.

--Pascal

Regarding the telemetry. I will first try using the serial protocol and a direct cable connection ( Computer USB->Serial on Tiny??? )? I have the maxstream modems too.
computacenter
-Uttam

----- Original Message ----
From: Pascal Brisset <address@hidden>
To: address@hidden
Sent: Tuesday, January 15, 2008 1:46:30 AM
Subject: Re: [Paparazzi-devel] Tiny 2 and IR, gyro settings

Information about the infrared configuration has recently been updated
in the wiki:

http://paparazzi.enac.fr/wiki/index.php/Airframe_Configuration#Infrared

You should find there some answers to your questions.
http://paparazzi.enac.fr/wiki_images/Ricou.jpg
Your next step probably is to set the telemetry. You can use a cable
(USB/serial 3.3V converter) to start.

--Pascal

Stephen L Hulme
21 Waitohu Road
York Bay
Lower Hutt 5013
New Zealand
Tel:+6445769133