OSD for AQ

Radio, Telemetry, FTDI/USB, ESCs, Motors, etc.

Re: OSD for AQ

Postby DUKE40 » Tue Jan 13, 2015 7:59 pm

Hi bluuu,

a few questions regarding the LED connections, do they support 12V LEDs with 50mA?
Which of the two pads is plus, and which one is minus? Am I correct when I assume that minus is the one near the edge of the board.
On the M4 extension board, I have for UART 5V-Rx-Tx-GND, on the OSD board mention RST-Rx-Tx-GND, the last three pins is clear, but for the first one RST, what is this? Is it needed?
Best regards,
Image
Spacewalk 550, MT2216-11, SimonK 20A ESC, AQ6 DIMU, 10x5" CF, SJ4000
CamCruiser, MN3510, ESC32, AQ6 DIMU, 12x4" CF, SimpleBGC, GoPro Hero 3 BE
DUKE40
 
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Re: OSD for AQ

Postby bluuu » Tue Jan 13, 2015 8:16 pm

LED powering is made direct from power connector to "lower" pins
"upper" are to GND (via transistors in ULN chip)

To uart connect only GND and RX (from AQ TX) rest of pins are for setup screen display (and changing FW)
bluuu
 
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Re: OSD for AQ

Postby DUKE40 » Tue Jan 13, 2015 9:49 pm

Hi bluuu,

do you mean the LED are to be connected that way?
P1130065-OSD.jpg
Best regards,
Image
Spacewalk 550, MT2216-11, SimonK 20A ESC, AQ6 DIMU, 10x5" CF, SJ4000
CamCruiser, MN3510, ESC32, AQ6 DIMU, 12x4" CF, SimpleBGC, GoPro Hero 3 BE
DUKE40
 
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Re: OSD for AQ

Postby bluuu » Tue Jan 13, 2015 9:54 pm

no ! "- " on your "red", "+" on green
bluuu
 
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Re: OSD for AQ

Postby kinderkram » Tue Jan 13, 2015 9:59 pm

Adam,
what about updating your images and transfer the info to the Wiki?

Image
Going from this image I´d expected the GND on the outer row (like on many other boards).
Looks like thered graph is pointing at the positive pole.
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Re: OSD for AQ

Postby bluuu » Tue Jan 13, 2015 11:40 pm

This is not a final design. In this version +Vcc is on edge row (track wire is on bottom side).

I'll write wiki page soon.
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Re: OSD for AQ

Postby DUKE40 » Wed Jan 14, 2015 9:41 pm

bluuu wrote:LED powering is made direct from power connector to "lower" pins
"upper" are to GND (via transistors in ULN chip)

To uart connect only GND and RX (from AQ TX) rest of pins are for setup screen display (and changing FW)


Hi bluuu,

you wrote for setup screen display. Does this mean there are possibilities to setup some things of the OSD? How would this be done and what could be setup?
Or is this a the moment only for future use and there is nothing ready there at this stage, I know we are more or less in the early testing stage.
By the way, my Fatshark set is on the way to me, and should be here latest on Monday, so testing will begin soon. Latest beginning of February if the weather allows it.
Best regards,
Image
Spacewalk 550, MT2216-11, SimonK 20A ESC, AQ6 DIMU, 10x5" CF, SJ4000
CamCruiser, MN3510, ESC32, AQ6 DIMU, 12x4" CF, SimpleBGC, GoPro Hero 3 BE
DUKE40
 
Posts: 364
Joined: Tue Mar 26, 2013 9:49 pm

Re: OSD for AQ

Postby DUKE40 » Wed Jan 21, 2015 9:48 pm

First test on ground looks very promising.
The board is a little bit big and heavy for my Hexa based on M4, but I assume that once testing is over and if it is made available for sale for AutoQuad users, it might be build using SMD technology and thus gets smaller and lighter.
I will further report from my tests, but maiden flight will not be before February as I first need to finish building the hexa.
Best regards,
Image
Spacewalk 550, MT2216-11, SimonK 20A ESC, AQ6 DIMU, 10x5" CF, SJ4000
CamCruiser, MN3510, ESC32, AQ6 DIMU, 12x4" CF, SimpleBGC, GoPro Hero 3 BE
DUKE40
 
Posts: 364
Joined: Tue Mar 26, 2013 9:49 pm

Re: OSD for AQ

Postby bluuu » Thu Jan 22, 2015 3:00 am

thanks for opinion

The heaviest element is shielded inductor. Together with capacitor it makes simple camera & VTX power supply filter. Problem with noise or horizontal strips and other distortions are a very often problem in FPV flying. This simple filter can eliminate it. Other "big"element is linear voltage regulator. It is better then switching regulator because of noise. Additional THT resistors are a voltage divider (its my mistake (I missed it) on "early alfa" pcbs ;) )

About dimensions. It is a "standard" 50x50 with "standard" 45x45 between holes for make it simple to mount.
I can make it smaller but ... what about mounting ? And what about connectors ... I like "standard" 2.54 raster pins I can change it for small connectors but ... pico connectors ... :/
bluuu
 
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Re: OSD for AQ

Postby DUKE40 » Thu Jan 22, 2015 6:17 am

Hi bluuu,

Thanks for your explanation.
As I plan to also use LEDs connected to it, I have one question about the connections, how much current do the connection support? Can I connect LED drawing 150mA in total directly to the OSD board (50mA per LED connection LED1, LED2 and GPS Fix LED)?
If not, it is not a problem I would then realize it differently.
Best regards,
Image
Spacewalk 550, MT2216-11, SimonK 20A ESC, AQ6 DIMU, 10x5" CF, SJ4000
CamCruiser, MN3510, ESC32, AQ6 DIMU, 12x4" CF, SimpleBGC, GoPro Hero 3 BE
DUKE40
 
Posts: 364
Joined: Tue Mar 26, 2013 9:49 pm

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