OSD

[lukasz]

Does anyone know of an OSD that I could attach to gluonpilot?
I'm looking for something very simple that would pull information from Gluonpilot and place this on a video link.
On Gluonpilot board we have 1x I2C output, 1x SPI output and 1x uart (ttl) output.
Uart connection I would use to connect to Xbee and the same have telemetry on ground station.
also in the future I would like to attach pitot tube - this would probably use I2C connection.
This leaves SPI output - can I do anything with this?

The idea is to have an OSD that would simply connect to Gluonpilot and pull such information as GPS, altitude, gyroscopes and put this information on a video link.

Any ideas?

I have found following thing: http://www.sparkfun.com/commerce/produc ... ts_id=9168

[Tom]

One of the "if I ever have time" projects

I have a few of these chips laying around (samples) to start playing. One of the reasons you can switch between 3V3 and 5V for the gluon-SPI port is this particular chip! I suppose it would only be a matter of a few days to get the code up and running once we get started with it.

[lukasz]

oh, great. So OSD is part of the project scope
Regarding possible OSD chips, is the one i proposed any good?
Do you have any other proposals that can be used for this?
Is my thinking that SPI port should be usable for this?

[Tom]

Well it is a bit old maybe. I guess the chip is good enough, but graphics won't be possible (as far as I can remember the datasheet). So we'll need to make a layout that is text-based.

[lukasz]

Hi Tom,

did you have the time to look at the OSD?
Can you let me know with which OSD chip you are planing to work?

[Tom]

Hi Lukasz,

You will never believe it: I have a working gluonpilot OSD with the MAX7456

Expect a post on the weblog real soon

[lukasz]

wow!
Cant wait to see it

Will you be also selling those? if so then I'm interested!

[Tom]

Probably, Still doubting whether to use some Sparkfun or similar board, or to make a Gluon extension board (xbee + switched 5V power supply + OSD)...

[lukasz]

Well, this sounds interesting.
let me know if there will be any realistic plans to develop such board.

I'm still on hold in buying sparkfun regulated boards for xbee.

[Tom]

If I have time enough to design it, I'll have the PCB's made together with the new modules planned for end December.