"I used the genuine 3DR 1.1
but I have now ordered a HK....."
Jérôme Niklès's Discussions
MinimOSD - Black screen/no image
Started this discussion. Last reply by Ronny Grimm on Thursday. 69 Replies 0 Likes
Hi all !I need help about my MinimOSD freshly unpacked.I've triple checked the cabling and I don't know why I've just a black image on my screen.There is a suspicious comportement when I power on the…Continue
"motors" command does not work properly ?
Started this discussion. Last reply by Jérôme Niklès Apr 11, 2012. 3 Replies 0 Likes
Hi everyone ! My first quadcopter is finish to build and I want to test the motors with the "motors" command in the CLI.The wiki say (after enter the command in the CLI):Plug in your LiPo battery and…Continue
Polyvalent Starter Kit
Started this discussion. Last reply by Martint BuildYourOwnDrone.co.uk Jan 8, 2012. 7 Replies 0 Likes
Hi everyone !I'ts my first post here and I'm happy to have find a beautiful site web with a great community !First, I will apologize, I come from Switzerland and my first language is french and not…Continue
Jérôme Niklès's Page
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DeveloperSandro Benigno replied to Jérôme Niklès's discussion MinimOSD - Black screen/no image
"Yep. I know that it's from -0.3V to 0.3V. However, I did test it so many times at so many different ways, and different boards... it never was a problem here. The suggestion of a transient "punch" makes sense though like…"
steve F11music.com replied to Jérôme Niklès's discussion MinimOSD - Black screen/no image"The sure fire way is to power it from the 5v side only and bridge the 2 solder gaps. Powering it with 2 batteries is a recipe for smoke :)"
gustavo replied to Jérôme Niklès's discussion MinimOSD - Black screen/no image"I Have a 3d robotics arducopter with minim osd , directly wired from factory , and it got burned , so it is so clear tha t the design is flawed that I can't really believed that a this point nobody from design has was successfull to clarify how…"
DeveloperSandro Benigno replied to Jérôme Niklès's discussion MinimOSD - Black screen/no image
"What hardware version do you see printed on your board? Is that from 3DRobotics?
HobbyKing and others did clone the old version which has a linear regulator. It gets really hot with 12V at the video IO pins. Even worse is that…"
GrMis replied to Jérôme Niklès's discussion MinimOSD - Black screen/no image"Hi Sandro. I agree that the two grounds need not be connected, but the max7456 datasheet also specifies that the voltage difference between the two grounds (AGND & DGND) should not exceed 0.3v, which is quite small. This is an "Absolute…"
Ronny Grimm replied to Jérôme Niklès's discussion MinimOSD - Black screen/no image"Hi Sandro! I have checked the connections and the video link is working when bypassing the OSD, when board is connected there is only black screen, i can still connect the config tool and update software but thats all...
2 new boards on order...…"
DeveloperSandro Benigno replied to Jérôme Niklès's discussion MinimOSD - Black screen/no image
"Hi Ronny! Please, double check your connections and the board for some other issue. The chip should NOT fume just because the two stages are not tied. The max7456 "analog gnd" and the "digital gnd" are engineered to…"
GrMis replied to Jérôme Niklès's discussion MinimOSD - Black screen/no image"I think that it is safer to connect the digital & analog grounds together.At least mine is wired this way now and it is still alive after many tests.Two remarks:- I haven't noticed any visible parasites on the video (even when using…"
Ronny Grimm replied to Jérôme Niklès's discussion MinimOSD - Black screen/no image"Wish I had seen this thread before i fried my new 1.1 Minim board..
I did the recommended setup with 12v on video side and i could smell the fumes when the chip went up in smoke :-(
Have ordered 2 new max7456 and will try to fix.
I think there…"
Jérôme Niklès replied to Jérôme Niklès's discussion MinimOSD - Black screen/no image"Oh nice ! I will try this !Thanks for the trick GrMis ! ;-)"
GrMis replied to Jérôme Niklès's discussion MinimOSD - Black screen/no image"Hi,
As many of you, I already fried two minim board using a single Lipo...
However I could repair it by changing the max7456 chip (available as free sample on Maxim website).It is quite straightforward to do, but I posted some details…"
Jérôme Niklès replied to Jérôme Niklès's discussion MinimOSD - Black screen/no image"I use the "basic wiring diagram" as explained on the minimosd website.
So, one battery for the "video side" aka analog and the digital side is powered from the APM, itself powered by the main battery.
Yes, separate…"
gustavo replied to Jérôme Niklès's discussion MinimOSD - Black screen/no image"Thank you Jerome,
Are you using the same battery for the analog and digital side of the minimosd ?
Did you keep grounds of both sides separated or connected ?"
Jérôme Niklès replied to Jérôme Niklès's discussion MinimOSD - Black screen/no image"Hi Gustavo,
I work with two separate battery, the main one for the APM + motor + radio and one small other just for the video system. Safest way for me."
gustavo replied to Jérôme Niklès's discussion MinimOSD - Black screen/no image"Fete,
After reading all recommendations and still not having a clear view of which is the safest way to power the minimosd , I would like to ask if your post is still valid, and you do recommend go this way,
Would very much appreciate your…"
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- About Me:
- Engineer IT and Telecom and firefighter
- Tell us a bit about your UAV interest
- Newbie in the UAV world, I want to play with arduino and an arducopter to take aerial photography.
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